{"id":3872,"date":"2025-08-29T11:50:42","date_gmt":"2025-08-29T03:50:42","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=3872"},"modified":"2025-08-28T10:58:08","modified_gmt":"2025-08-28T02:58:08","slug":"how-gratings-and-prisms-enable-precise-light-separation-in-spectroscopy","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/vi\/applications\/how-gratings-and-prisms-enable-precise-light-separation-in-spectroscopy","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o l\u01b0\u1edbi v\u00e0 k\u00ednh k\u00ednh cho ph\u00e9p t\u00e1ch \u00e1nh s\u00e1ng ch\u00ednh x\u00e1c trong quang ph\u1ed5"},"content":{"rendered":"

\"1v\u1eadt<\/p>\n

Spectroscopy l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 khoa h\u1ecdc quan tr\u1ecdng. N\u00f3 cho ph\u00e9p c\u00e1c nh\u00e0 khoa h\u1ecdc t\u00ecm ra nh\u1eefng th\u1ee9 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch nh\u00ecn v\u00e0o c\u00e1ch ch\u00fang t\u01b0\u01a1ng t\u00e1c v\u1edbi \u00e1nh s\u00e1ng. M\u1ed9t ph\u1ea7n l\u1edbn c\u1ee7a \u0111i\u1ec1u n\u00e0y l\u00e0 chia \u00e1nh s\u00e1ng th\u00e0nh c\u00e1c b\u01b0\u1edbc s\u00f3ng th\u00e0nh ph\u1ea7n kh\u00e1c nhau c\u1ee7a n\u00f3. C\u00f4ng vi\u1ec7c n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng m\u1ed9t k\u00ednh k\u00ednh ho\u1eb7c m\u1ed9t l\u01b0\u1edbi x\u00fac x\u1ea1. M\u1ed7i b\u1ed9 ph\u1eadn quang h\u1ecdc n\u00e0y \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong c\u00e1ch m\u1ed9t m\u00e1y quang ph\u1ed5 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf. \u0110i\u1ec1u g\u00ec’ H\u01a1n n\u1eefa, ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 ch\u00ednh x\u00e1c v\u00e0 chi ti\u1ebft nh\u01b0 th\u1ebf n\u00e0o, v\u00e0 c\u00f4ng c\u1ee5 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nh\u1eefng g\u00ec. Hi\u1ec3u c\u00e1ch c\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y ho\u1ea1t \u0111\u1ed9ng gi\u00fap l\u00e0m r\u00f5 c\u00e1ch m\u1ed9t h\u1ec7 th\u1ed1ng l\u01b0\u1edbi ho\u1eb7c k\u00ednh k\u00ednh cung c\u1ea5p th\u00f4ng tin quang ph\u1ed5 ch\u00ednh x\u00e1c trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau.<\/p>\n

C\u00e1c nguy\u00ean t\u1eafc \u0111\u1eb1ng sau s\u1ef1 t\u00e1ch \u00e1nh s\u00e1ng trong quang ph\u1ed5<\/b><\/strong><\/h2>\n

To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh chia \u00e1nh s\u00e1ng th\u00e0nh c\u00e1c m\u00e0u s\u1eafc ri\u00eang l\u1ebb c\u1ee7a n\u00f3 l\u00e0 trung t\u00e2m c\u1ee7a c\u00f4ng vi\u1ec7c quang ph\u1ed5. T\u00e1ch bi\u1ec7t n\u00e0y cho ph\u00e9p c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u00ecm th\u1ea5y c\u00e1c y\u1ebfu t\u1ed1 ho\u1eb7c h\u1ee3p ch\u1ea5t c\u1ee5 th\u1ec3 b\u1edfi v\u00ec m\u1ed7i ch\u00fang c\u00f3 ch\u1eef k\u00fd \u00e1nh s\u00e1ng \u0111\u1ed9c \u0111\u00e1o c\u1ee7a ri\u00eang h\u1ecd.<\/p>\n

Vai tr\u00f2 c\u1ee7a s\u1ef1 ph\u00e2n t\u00e1n trong ph\u00e2n t\u00edch quang ph\u1ed5<\/b><\/strong><\/h3>\n

Ph\u00e2n t\u00e1n l\u00e0 t\u1ea5t c\u1ea3 v\u1ec1 c\u00e1ch m\u00e0 c\u00e1c m\u00e0u s\u1eafc kh\u00e1c nhau c\u1ee7a \u00e1nh s\u00e1ng u\u1ed1n cong ho\u1eb7c ph\u00e2n t\u00e1n \u1edf c\u00e1c g\u00f3c kh\u00e1c nhau khi ch\u00fang \u0111i qua m\u1ed9t v\u1eadt li\u1ec7u r\u00f5 r\u00e0ng. Hi\u1ec7u \u1ee9ng n\u00e0y r\u1ea5t quan tr\u1ecdng. N\u00f3 cho ph\u00e9p c\u00e1c nh\u00e0 khoa h\u1ecdc nh\u00ecn th\u1ea5y c\u00e1c \u0111\u01b0\u1eddng quang ph\u1ed5 ri\u00eang bi\u1ec7t t\u1eeb m\u1ed9t ngu\u1ed3n \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng nhi\u1ec1u m\u00e0u s\u1eafc. V\u00ec v\u1eady, cho d\u00f9 n\u00f3’ S\u1ef1 ph\u00e2n t\u00e1n l\u00e0 \u0111i\u1ec1u gi\u00fap c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u00ecm th\u1ea5y v\u00e0 \u0111o l\u01b0\u1eddng c\u00e1c ch\u1ea5t v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c tuy\u1ec7t v\u1eddi.<\/p>\n

L\u00e0m th\u1ebf n\u00e0o b\u01b0\u1edbc s\u00f3ng ph\u1ee5 thu\u1ed9c x\u00fac x\u1ea1 v\u00e0 x\u00fac x\u1ea1 ho\u1ea1t \u0111\u1ed9ng<\/b><\/strong><\/h3>\n

Prism s\u1eed d\u1ee5ng kh\u00fac x\u1ea1 \u0111\u1ec3 chia \u00e1nh s\u00e1ng th\u00e0nh b\u01b0\u1edbc s\u00f3ng c\u1ee7a n\u00f3. \u0110i\u1ec1u n\u00e0y ch\u1ec9 \u0111\u01a1n gi\u1ea3n c\u00f3 ngh\u0129a l\u00e0 \u00e1nh s\u00e1ng u\u1ed1n cong khi n\u00f3 \u0111i qua c\u00e1c v\u1eadt li\u1ec7u c\u00f3 m\u1eadt \u0111\u1ed9 kh\u00e1c nhau. M\u1eb7t kh\u00e1c, l\u01b0\u1edbi x\u00fac x\u1ea1 s\u1eed d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c. H\u1ecd d\u1ef1a v\u00e0o c\u00e1c m\u00f4 h\u00ecnh can thi\u1ec7p h\u00ecnh th\u00e0nh khi \u00e1nh s\u00e1ng ch\u1ea1m v\u00e0o m\u1ed9t b\u1ec1 m\u1eb7t v\u1edbi nhi\u1ec1u \u0111\u01b0\u1eddng nh\u1ecf, c\u00f3 kho\u1ea3ng c\u00e1ch \u0111\u1ed3ng \u0111\u1ec1u \u0111\u01b0\u1ee3c kh\u1eafc tr\u00ean n\u00f3.<\/p>\n

Ch\u1ee9c n\u0103ng c\u1ee7a Prism trong Spectrometer<\/b><\/strong><\/h2>\n

Prism l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch \u00e1nh s\u00e1ng. Ch\u00fang v\u1eabn h\u1eefu \u00edch cho m\u1ed9t s\u1ed1 c\u00f4ng vi\u1ec7c ng\u00e0y nay.<\/p>\n

T\u00e1ch \u00e1nh s\u00e1ng d\u1ef1a tr\u00ean kh\u00fac x\u1ea1<\/b><\/strong><\/h3>\n

\u0110\u00e2y l\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng trong m\u1ed9t h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean prism. \u00c1nh s\u00e1ng tr\u1eafng \u0111i v\u00e0o quang k\u00ednh v\u00e0 ch\u1eadm l\u1ea1i v\u00ec v\u1eadt li\u1ec7u n\u00f3’ S \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb B\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n, nh\u01b0 m\u00e0u t\u00edm, u\u1ed1n cong nhi\u1ec1u h\u01a1n nh\u1eefng b\u01b0\u1edbc s\u00f3ng d\u00e0i h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e0u \u0111\u1ecf. What’ S k\u1ebft qu\u1ea3? M\u00e0u s\u1eafc \u0111\u01b0\u1ee3c t\u00e1ch ra v\u00e0 lan r\u1ed9ng tr\u00ean ph\u1ed5 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y.<\/p>\n

Th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u v\u00e0 h\u00ecnh h\u1ecdc c\u1ee7a Prisms<\/b><\/strong><\/h3>\n

\u00c1nh s\u00e1ng lan r\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o v\u00e0 bao nhi\u00eau th\u1ef1c s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o hai \u0111i\u1ec1u. Tr\u01b0\u1edbc h\u1ebft, v\u1eadt li\u1ec7u c\u1ee7a quang k\u00ednh quan tr\u1ecdng, v\u00ed d\u1ee5 nh\u01b0 th\u1ee7y tinh \u0111\u00e1 ho\u1eb7c th\u1ea1ch anh. Ngo\u00e0i ra, h\u00ecnh d\u1ea1ng h\u00ecnh h\u1ecdc c\u1ee7a n\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t tam gi\u00e1c b\u00ecnh ph\u01b0\u01a1ng, l\u00e0 quan tr\u1ecdng. Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y quy\u1ebft \u0111\u1ecbnh m\u1ed7i m\u00e0u u\u1ed1n cong bao nhi\u00eau, v\u00e0 \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 chi ti\u1ebft cu\u1ed1i c\u00f9ng.<\/p>\n

L\u1ee3i th\u1ebf v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean Prism<\/b><\/strong><\/h3>\n

H\u1ec7 th\u1ed1ng Prism c\u00f3 nh\u1eefng \u0111i\u1ec3m t\u1ed1t c\u1ee7a n\u00f3. H\u1ecd lan r\u1ed9ng \u00e1nh s\u00e1ng tr\u01a1n tru v\u00e0 don’ t c\u00f3 c\u00e1c m\u1eabu \u00e1nh s\u00e1ng ch\u1ed3ng ch\u00e9o, \u0111\u00f3 l\u00e0 m\u1ed9t \u0111i\u1ec3m c\u1ed9ng l\u1edbn. \u0110i\u1ec1u n\u00e0y l\u00e0m cho ch\u00fang thu\u1eadn ti\u1ec7n \u0111\u1ec3 nh\u00ecn v\u00e0o m\u1ed9t ph\u1ea1m vi r\u1ed9ng r\u00e3i \u00e1nh s\u00e1ng. Tuy nhi\u00ean, ch\u00fang c\u0169ng c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf l\u1edbn. \u00c1nh s\u00e1ng c\u1ee7a ch\u00fang th\u01b0\u1eddng kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u ho\u1eb7c kh\u00f4ng tuy\u1ebfn t\u00ednh. \u0110i\u1ec1u g\u00ec’ s h\u01a1n n\u1eefa, ch\u00ednh k\u00ednh c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 \u00e1nh s\u00e1ng UV ho\u1eb7c IR, c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n c\u00f3 th\u1ec3’ t xem c\u00e1c b\u01b0\u1edbc s\u00f3ng \u0111\u00f3. \u0110i\u1ec1u n\u00e0y th\u1ef1c s\u1ef1 h\u1ea1n ch\u1ebf nh\u1eefng g\u00ec h\u1ecd c\u00f3 th\u1ec3 l\u00e0m so v\u1edbi l\u01b0\u1edbi.<\/p>\n

Ch\u1ee9c n\u0103ng c\u1ee7a m\u1ed9t l\u01b0\u1edbi trong m\u1ed9t m\u00e1y quang ph\u1ed5<\/b><\/strong><\/h2>\n

L\u01b0\u1edbi \u0111\u00e3 thay th\u1ebf quang k\u00ednh trong c\u00e1c m\u00e1y quang ph\u1ed5 m\u1edbi. \u0110i\u1ec1u n\u00e0y l\u00e0 b\u1edfi v\u00ec ch\u00fang ch\u00ednh x\u00e1c h\u01a1n v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec1u th\u1ee9 h\u01a1n.<\/p>\n

T\u00e1ch \u00e1nh s\u00e1ng d\u1ef1a tr\u00ean ph\u00e2n x\u00fac<\/b><\/strong><\/h3>\n

L\u01b0\u1edbi ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0n d\u00f2ng nh\u1ecf \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i ch\u1eb7t ch\u1ebd v\u1edbi nhau tr\u00ean b\u1ec1 m\u1eb7t. Nh\u1eefng \u0111\u01b0\u1eddng n\u00e0y u\u1ed1n cong \u00e1nh s\u00e1ng \u0111\u1ebfn. Qu\u00e1 tr\u00ecnh n\u00e0y t\u1ea1o ra nhi\u1ec1u ph\u1ed5, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u1ec7nh. Quan tr\u1ecdng, g\u00f3c c\u1ee7a u\u1ed1n cong ph\u1ee5 thu\u1ed9c v\u00e0o \u00e1nh s\u00e1ng’ B\u01b0\u1edbc s\u00f3ng s. \u0110\u00f3’ L\u00e0m th\u1ebf n\u00e0o m\u1ed9t l\u01b0\u1edbi t\u00e1ch \u00e1nh s\u00e1ng th\u00e0nh m\u1ed9t ph\u1ed5 \u0111\u1ea7y \u0111\u1ee7.<\/p>\n

C\u00e1c lo\u1ea1i l\u01b0\u1edbi x\u00fac x\u1ea1: Truy\u1ec1n t\u1ea3i vs. Ph\u1ea3n x\u1ea1<\/b><\/strong><\/h3>\n

C\u00f3 hai lo\u1ea1i l\u01b0\u1edbi ch\u00ednh. \u0110\u1ea7u ti\u00ean, b\u1ea1n c\u00f3 l\u01b0\u1edbi truy\u1ec1n t\u1ea3i. Nh\u1eefng th\u1ee9 n\u00e0y cho ph\u00e9p \u00e1nh s\u00e1ng \u0111i qua ch\u00fang khi n\u00f3 b\u1ecb xoay quanh. Sau \u0111\u00f3, c\u00f3 c\u00e1c l\u01b0\u1edbi ph\u1ea3n \u00e1nh. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t chi\u1ebfc g\u01b0\u01a1ng, ph\u1ea3n \u00e1nh \u00e1nh s\u00e1ng \u0111\u00e1nh v\u00e0o ch\u00fang \u1edf c\u00e1c g\u00f3c kh\u00e1c nhau d\u1ef1a tr\u00ean m\u00e0u s\u1eafc. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y l\u01b0\u1edbi truy\u1ec1n t\u1ea3i trong m\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 nh\u1ecf h\u01a1n. Nh\u01b0ng \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c m\u00e1y quang ph\u1ed5 h\u1ea1ng n\u1eb7ng, l\u01b0\u1edbi ph\u1ea3n x\u1ea1 l\u00e0 c\u00e1ch \u0111\u1ec3 \u0111i. T\u1ea1i sao? B\u1edfi v\u00ec ch\u00fang ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n v\u00e0 c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec1u lo\u1ea1i \u00e1nh s\u00e1ng h\u01a1n.<\/p>\n

M\u1eadt \u0111\u1ed9 \u0111\u01b0\u1eddng v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a n\u00f3 \u0111\u1ebfn \u0111\u1ed9 ph\u00e2n gi\u1ea3i<\/b><\/strong><\/h3>\n

B\u1ea1n c\u00e0ng \u0111\u00f3ng g\u00f3i nhi\u1ec1u d\u00f2ng v\u00e0o m\u1ed9t kh\u00f4ng gian nh\u1ecf, k\u1ebft qu\u1ea3 c\u00e0ng t\u1ed1t. M\u1eadt \u0111\u1ed9 \u0111\u01b0\u1eddng cao h\u01a1n cung c\u1ea5p cho b\u1ea1n m\u1ed9t b\u1ee9c tranh chi ti\u1ebft h\u01a1n v\u1ec1 b\u01b0\u1edbc s\u00f3ng. \u0110i\u1ec1u n\u00e0y l\u00e0 b\u1edfi v\u00ec n\u00f3 lan r\u1ed9ng \u00e1nh s\u00e1ng qua m\u1ed9t g\u00f3c r\u1ed9ng h\u01a1n. V\u00ed d\u1ee5, m\u1ed9t l\u01b0\u1edbi v\u1edbi 1200 d\u00f2ng m\u1ed7i milimet l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd. N\u00f3 cung c\u1ea5p lo\u1ea1i \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao c\u1ea7n thi\u1ebft cho c\u00f4ng vi\u1ec7c quang ph\u1ed5 r\u1ea5t chi ti\u1ebft.<\/p>\n

So s\u00e1nh gi\u1eefa l\u01b0\u1edbi v\u00e0 quang k\u00ednh trong m\u00e1y quang ph\u1ed5<\/b><\/strong><\/h2>\n

Bi\u1ebft hai ph\u1ea7n n\u00e0y kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n quy\u1ebft \u0111\u1ecbnh m\u1ed9t ph\u1ea7n n\u00e0o t\u1ed1t h\u01a1n cho m\u1ed9t c\u00f4ng vi\u1ec7c c\u1ee5 th\u1ec3.<\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 h\u00e0nh vi quang h\u1ecdc<\/b><\/strong><\/h3>\n

Prisms v\u00e0 l\u01b0\u1edbi h\u00e0nh \u0111\u1ed9ng r\u1ea5t kh\u00e1c nhau. \u00c1nh k\u00ednh s\u1eed d\u1ee5ng kh\u00fac x\u1ea1, v\u00e0 \u0111i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang lan r\u1ed9ng \u00e1nh s\u00e1ng kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u. Nh\u01b0ng l\u01b0\u1edbi s\u1eed d\u1ee5ng ph\u00e2n x\u00fac. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u00fang truy\u1ec1n \u00e1nh s\u00e1ng m\u1ed9t c\u00e1ch r\u1ea5t c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 g\u1ea7n nh\u01b0 tuy\u1ebfn t\u00ednh. L\u1ee3i th\u1ebf l\u1edbn l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c m\u00e0u s\u1eafc kh\u00e1c nhau nh\u1ea5t qu\u00e1n h\u01a1n v\u00e0 d\u1ec5 d\u1ef1 \u0111o\u00e1n tr\u00ean to\u00e0n b\u1ed9 ph\u1ed5.<\/p>\n

Hi\u1ec7u su\u1ea5t tr\u00ean ph\u1ed5 \u0111i\u1ec7n t\u1eeb<\/b><\/strong><\/h3>\n

L\u01b0\u1edbi l\u00e0 ng\u01b0\u1eddi chi\u1ebfn th\u1eafng r\u00f5 r\u00e0ng khi n\u00f3i \u0111\u1ebfn ph\u1ea1m vi \u00e1nh s\u00e1ng m\u00e0 h\u1ecd c\u00f3 th\u1ec3 x\u1eed l\u00fd. Ch\u00fang ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n nhi\u1ec1u so v\u1edbi k\u00ednh quang tr\u00ean ph\u1ed5 r\u1ed9ng h\u01a1n. L\u00fd do ch\u00ednh l\u00e0 r\u1eb1ng l\u01b0\u1edbi don’ t h\u1ea5p th\u1ee5 \u00e1nh s\u00e1ng nh\u01b0 v\u1eadt li\u1ec7u k\u00ednh quang l\u00e0m. Do \u0111\u00f3, \u0111i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u1edf c\u00e1c khu v\u1ef1c si\u00eau t\u00edm v\u00e0 h\u1ed3ng ngo\u1ea1i, n\u01a1i k\u00ednh quang th\u01b0\u1eddng th\u1ea5t b\u1ea1i.<\/p>\n

Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng d\u1ef1a tr\u00ean y\u00eau c\u1ea7u ph\u00e2n t\u00edch<\/b><\/strong><\/h3>\n

Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng prism? H\u1ecd v\u1eabn t\u1ed1t cho m\u1ed9t s\u1ed1 c\u00f4ng vi\u1ec7c. V\u00ed d\u1ee5, n\u1ebfu b\u1ea1n c\u1ea7n m\u1ed9t c\u00f4ng c\u1ee5 \u0111\u01a1n gi\u1ea3n v\u00e0 c\u1ee9ng r\u1eafn, nh\u01b0 \u0111\u1ec3 s\u1eed d\u1ee5ng trong l\u1edbp h\u1ecdc, k\u00ednh k\u00ednh l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi. Nh\u01b0ng \u0111\u1ed1i v\u1edbi m\u1ecdi th\u1ee9 kh\u00e1c, l\u01b0\u1edbi l\u00e0 vua. Ch\u00fang l\u00e0 l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u cho c\u00e1c c\u00f4ng vi\u1ec7c c\u1ea7n \u0111\u1ed9 ch\u00ednh x\u00e1c cao, nh\u01b0 trong v\u1eadt l\u00fd thi\u00ean v\u0103n, gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng v\u00e0 ki\u1ec3m tra ma t\u00fay. T\u1ea5t c\u1ea3 l\u00e0 b\u1edfi v\u00ec ch\u00fang cung c\u1ea5p chi ti\u1ebft t\u1ed1t h\u01a1n nhi\u1ec1u.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a m\u00e1y quang ph\u1ed5 l\u01b0\u1edbi tr\u00ean kh\u1eafp c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p<\/b><\/strong><\/h2>\n

M\u00e1y quang ph\u1ed5 l\u01b0\u1edbi l\u00e0 c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft trong nhi\u1ec1u l\u0129nh v\u1ef1c b\u1edfi v\u00ec ch\u00fang r\u1ea5t linh ho\u1ea1t v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n

Theo d\u00f5i m\u00f4i tr\u01b0\u1eddng v\u00e0 ph\u00e1t hi\u1ec7n \u00f4 nhi\u1ec5m<\/b><\/strong><\/h3>\n

Nh\u1eefng c\u00f4ng c\u1ee5 n\u00e0y l\u00e0 tuy\u1ec7t v\u1eddi \u0111\u1ec3 ki\u1ec3m tra kh\u00f4ng kh\u00ed ho\u1eb7c n\u01b0\u1edbc \u00f4 nhi\u1ec5m. H\u1ecd l\u00e0m vi\u1ec7c b\u1eb1ng c\u00e1ch ph\u00e1t hi\u1ec7n c\u00e1c ch\u1eef k\u00fd \u00e1nh s\u00e1ng \u0111\u1eb7c bi\u1ec7t m\u00e0 c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m kh\u00e1c nhau ph\u00e1t ra. Do \u0111\u00f3, h\u1ecd’ \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u1ea1i m\u1ecdi l\u00fac \u0111\u1ec3 t\u00ecm ra h\u00f3a ch\u1ea5t n\u00e0o trong m\u1eabu v\u00e0 v\u1edbi s\u1ed1 l\u01b0\u1ee3ng n\u00e0o.<\/p>\n

An to\u00e0n th\u1ef1c ph\u1ea9m v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/b><\/strong><\/h3>\n

M\u00e1y quang ph\u1ed5 l\u01b0\u1edbi c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y d\u1ea5u v\u00e2n tay d\u1ef1a tr\u00ean \u00e1nh s\u00e1ng c\u1ee7a c\u00e1c ch\u1ea5t ph\u1ee5 gia ho\u1eb7c c\u00e1c th\u1ee9 kh\u00f4ng mong mu\u1ed1n kh\u00e1c trong th\u1ef1c ph\u1ea9m. B\u1eb1ng c\u00e1ch n\u00e0y, h\u1ecd gi\u00fap \u0111\u1ea3m b\u1ea3o th\u1ef1c ph\u1ea9m an to\u00e0n trong khi n\u00f3’ S \u0111\u01b0\u1ee3c l\u00e0m.<\/p>\n

Nghi\u00ean c\u1ee9u n\u00f4ng nghi\u1ec7p v\u00e0 ph\u00e2n t\u00edch thu\u1ed1c tr\u1eeb s\u00e2u<\/b><\/strong><\/h3>\n

C\u00e1c nh\u00e0 khoa h\u1ecdc s\u1eed d\u1ee5ng quang ph\u1ed5 \u0111\u1ec3 ki\u1ec3m tra l\u01b0\u1ee3ng ch\u1ea5t dinh d\u01b0\u1ee1ng trong c\u00e2y tr\u1ed3ng. H\u1ecd c\u0169ng c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y thu\u1ed1c tr\u1eeb s\u00e2u c\u00f2n l\u1ea1i. \u0110i\u1ec1u n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng v\u00e0 \u0111\u1ea3m b\u1ea3o th\u1ef1c ph\u1ea9m tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc an to\u00e0n.<\/p>\n

Th\u1eed nghi\u1ec7m d\u01b0\u1ee3c ph\u1ea9m v\u00e0 khoa h\u1ecdc cu\u1ed9c s\u1ed1ng<\/b><\/strong><\/h3>\n

Quang ph\u1ed5 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c s\u1ea3n xu\u1ea5t thu\u1ed1c. N\u00f3 c\u00f3 th\u1ec3 x\u00e1c nh\u1eadn li\u1ec7u m\u1ed9t h\u1ee3p ch\u1ea5t c\u00f3 tinh khi\u1ebft hay xem c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc khi ch\u00fang x\u1ea3y ra. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng cho c\u1ea3 ph\u00f2ng th\u00ed nghi\u1ec7m nghi\u00ean c\u1ee9u v\u00e0 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c quy t\u1eafc c\u1ee7a ch\u00ednh ph\u1ee7.<\/p>\n

Nh\u1eefng c\u00e2n nh\u1eafc thi\u1ebft k\u1ebf cho m\u00e1y quang ph\u1ed5 ch\u00ednh x\u00e1c cao<\/b><\/strong><\/h2>\n

L\u00e0m m\u1ed9t m\u00e1y quang ph\u1ed5 tuy\u1ec7t v\u1eddi c\u00f3 ngh\u0129a l\u00e0 t\u00ecm th\u1ea5y s\u1ef1 c\u00e2n b\u1eb1ng \u0111\u00fang gi\u1eefa c\u00e1c t\u00ednh n\u0103ng hi\u1ec7u su\u1ea5t kh\u00e1c nhau cho c\u00f4ng vi\u1ec7c \u0111ang th\u1ef1c hi\u1ec7n.<\/p>\n

T\u1ea7m quan tr\u1ecdng c\u1ee7a \u0111\u1ed9 ch\u00ednh x\u00e1c b\u01b0\u1edbc s\u00f3ng v\u00e0 ki\u1ec3m so\u00e1t b\u0103ng th\u00f4ng<\/b><\/strong><\/h3>\n

Vi\u1ec7c c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t quang ph\u1ed5 th\u1ef1c s\u1ef1 chi ti\u1ebft ph\u1ee5 thu\u1ed9c v\u00e0o hai \u0111i\u1ec1u. \u0110\u1ea7u ti\u00ean, b\u1ea1n c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh b\u01b0\u1edbc s\u00f3ng r\u1ea5t ch\u00ednh x\u00e1c. B\u1ea1n c\u0169ng c\u1ea7n nh\u00ecn v\u00e0o c\u00e1c m\u1ea3nh \u00e1nh s\u00e1ng r\u1ea5t h\u1eb9p. C\u1ea3 hai \u0111\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 ph\u00e2n bi\u1ec7t c\u00e1c t\u00ednh n\u0103ng \u00e1nh s\u00e1ng r\u1ea5t g\u1ea7n nhau. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi b\u1ea1n c\u1ea7n \u0111o l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t th\u1ee9 g\u00ec \u0111\u00f3.<\/p>\n

T\u00edch h\u1ee3p v\u1edbi ph\u1ea7n m\u1ec1m qu\u1ea3n l\u00fd v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u<\/b><\/strong><\/h3>\n

C\u00e1c c\u00f4ng c\u1ee5 m\u1edbi \u0111i k\u00e8m v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng ph\u1ea7n m\u1ec1m. C\u00e1c ch\u01b0\u01a1ng tr\u00ecnh n\u00e0y gi\u00fap gi\u00e1m s\u00e1t tr\u1ef1c ti\u1ebfp v\u00e0 ch\u1ea1y ph\u00e2n t\u00edch t\u1ef1 \u0111\u1ed9ng. H\u1ecd c\u0169ng c\u00f3 giao di\u1ec7n d\u1ec5 s\u1eed d\u1ee5ng, l\u00e0m cho c\u00f4ng vi\u1ec7c hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

\u0110o l\u01b0\u1eddng \u0111\u1ed9ng l\u1ef1c th\u1eddi gian th\u1ef1c<\/b><\/strong><\/h3>\n

M\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng ti\u00ean ti\u1ebfn c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y m\u1ecdi th\u1ee9 thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0o trong m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. H\u1ecd l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch l\u1ea5y ph\u1ed5 \u1edf c\u00e1c kho\u1ea3ng th\u1eddi gian kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p c\u00e1c nh\u00e0 khoa h\u1ecdc x\u00e2y d\u1ef1ng c\u00e1c m\u00f4 h\u00ecnh ph\u1ea3n \u1ee9ng ngay t\u1eeb d\u1eef li\u1ec7u th\u00f4.<\/p>\n

T\u1ea7m nh\u00ecn quang ph\u1ed5 ba chi\u1ec1u<\/b><\/strong><\/h3>\n

M\u1ed9t s\u1ed1 ch\u01b0\u01a1ng tr\u00ecnh th\u1eadm ch\u00ed c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u trong 3D. Ch\u00fang k\u1ebft h\u1ee3p c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng, b\u01b0\u1edbc s\u00f3ng v\u00e0 th\u1eddi gian th\u00e0nh m\u1ed9t h\u00ecnh \u1ea3nh. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p m\u1ed9t c\u00e1i nh\u00ecn s\u00e2u s\u1eafc h\u01a1n v\u1ec1 c\u00e1ch c\u00e1c m\u1eabu ph\u1ee9c t\u1ea1p ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c nhau.<\/p>\n

Gi\u1edbi thi\u1ec7u v\u1ec1 PERSEE nh\u01b0 m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00e1ng tin c\u1eady c\u1ee7a c\u00e1c d\u1ee5ng c\u1ee5 ph\u00e2n t\u00edch<\/b><\/strong><\/h2>\n

PERSEE<\/u><\/a>\u00a0M\u1ed9t c\u00f4ng ty n\u1ed5i ti\u1ebfng m\u00e0 t\u1ea1o ra c\u00e1c c\u00f4ng c\u1ee5 v\u1eefng ch\u1eafc cho c\u00e1c nh\u00e0 khoa h\u1ecdc tr\u00ean to\u00e0n th\u1ebf gi\u1edbi<\/u><\/a>.<\/p>\n

T\u1ed5ng quan danh m\u1ee5c s\u1ea3n ph\u1ea9m c\u1ee7a PERSEE<\/b><\/strong><\/h3>\n

Ph\u1ea1m vi s\u1ea3n ph\u1ea9m r\u1ed9ng r\u00e3i c\u1ee7a h\u1ecd bao g\u1ed3m c\u00e1c c\u00f4ng c\u1ee5 quang ph\u1ed5 ph\u00e2n t\u1eed (UV-Vis) v\u00e0 quang ph\u1ed5 nguy\u00ean t\u1eed (AAS). H\u1ecd c\u0169ng s\u1ea3n xu\u1ea5t c\u00e1c h\u1ec7 th\u1ed1ng hu\u1ef3nh quang tia X (XRF) v\u00e0 nhi\u1ec5m s\u1eafc (GC \/ LC), c\u0169ng nh\u01b0 c\u00e1c thi\u1ebft b\u1ecb ph\u00f2ng th\u00ed nghi\u1ec7m chung kh\u00e1c.<\/p>\n

T\u00ednh n\u0103ng c\u1ee7a T7 UV-Vis Split Beam Scanning Spectrophotometer<\/b><\/strong><\/h3>\n

\"\"<\/p>\n

M\u1ed9t trong PERSEE’ S\u1ea3n ph\u1ea9m h\u00e0ng \u0111\u1ea7u l\u00e0 M\u00e1y quang ph\u1ed5 UV-Vis T7<\/u><\/a>. N\u00f3’ s n\u1ed5i ti\u1ebfng v\u00ec r\u1ea5t \u0111\u00e1ng tin c\u1eady trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i \u0111i\u1ec1u ki\u1ec7n ph\u00f2ng th\u00ed nghi\u1ec7m kh\u00e1c nhau.<\/p>\n

Ch\u1ea5t l\u01b0\u1ee3ng cao 1200 d\u00f2ng \/ mm l\u01b0\u1edbi cho \u0111\u1ed9 ch\u00ednh x\u00e1c cao<\/b><\/strong><\/h4>\n

M\u00e1y n\u00e0y c\u00f3 l\u01b0\u1edbi x\u00fac x\u1ea1 ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi 1200 d\u00f2ng \/ mm b\u00ean trong m\u00e1y \u0111\u01a1n m\u00e0u Czerny-Turner c\u1ee7a n\u00f3. Ph\u1ea7n n\u00e0y l\u00e0 ch\u00eca kh\u00f3a. N\u00f3 cung c\u1ea5p \u0111\u1ed9 ph\u00e2n gi\u1ea3i tuy\u1ec7t v\u1eddi c\u1ea7n thi\u1ebft cho nhi\u1ec1u nhi\u1ec7m v\u1ee5. V\u00ec v\u1eady, n\u00f3’ l\u00e0 tuy\u1ec7t v\u1eddi cho c\u1ea3 vi\u1ec7c x\u00e1c \u0111\u1ecbnh m\u1ed9t ch\u1ea5t v\u00e0 \u0111o l\u01b0\u1ee3ng ch\u00ednh x\u00e1c.<\/p>\n

Thi\u1ebft k\u1ebf m\u00f4-\u0111un cho b\u1ea3o tr\u00ec d\u1ec5 d\u00e0ng v\u00e0 linh ho\u1ea1t<\/b><\/strong><\/h4>\n

N\u00f3’ s \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u1edbi thi\u1ebft k\u1ebf m\u00f4-\u0111un. \u0110\u00e2y l\u00e0 m\u1ed9t t\u00ednh n\u0103ng tuy\u1ec7t v\u1eddi. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng v\u00e0o trong \u0111\u1ec3 s\u1eeda ch\u1eefa. N\u00f3 c\u0169ng cung c\u1ea5p r\u1ea5t nhi\u1ec1u t\u00ednh linh ho\u1ea1t, v\u00ec v\u1eady b\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e0i \u0111\u1eb7t khi nhu c\u1ea7u nghi\u00ean c\u1ee9u c\u1ee7a b\u1ea1n thay \u0111\u1ed5i.<\/p>\n

T\u00f3m t\u1eaft v\u1ec1 c\u00e1ch l\u01b0\u1edbi v\u00e0 k\u00ednh k\u00ednh t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 ch\u00ednh x\u00e1c quang ph\u1ed5<\/b><\/strong><\/h2>\n

Cu\u1ed1i c\u00f9ng, c\u1ea3 k\u00ednh k\u00ednh v\u00e0 l\u01b0\u1edbi \u0111\u1ec1u r\u1ea5t quan tr\u1ecdng trong quang ph\u1ed5. Tuy nhi\u00ean, l\u01b0\u1edbi x\u00fac x\u1ea1 b\u00e2y gi\u1edd l\u00e0 c\u1ea7n thi\u1ebft. T\u1ea1i sao? B\u1edfi v\u00ec ch\u00fang c\u00f3 nhi\u1ec1u s\u1ee9c m\u1ea1nh \u0111\u1ec3 t\u00e1ch \u00e1nh s\u00e1ng v\u00e0 ch\u00fang ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n tr\u00ean m\u1ed9t ph\u1ea1m vi b\u01b0\u1edbc s\u00f3ng r\u1ea5t l\u1edbn. B\u1eb1ng c\u00e1ch \u0111\u01b0a ch\u00fang v\u00e0o c\u00e1c d\u1ee5ng c\u1ee5 hi\u1ec7n \u0111\u1ea1i, ch\u00fang ta c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 t\u00e1ch m\u00e0u ch\u00ednh x\u00e1c c\u1ea7n thi\u1ebft trong r\u1ea5t nhi\u1ec1u l\u0129nh v\u1ef1c khoa h\u1ecdc, t\u1eeb c\u00f4ng vi\u1ec7c m\u00f4i tr\u01b0\u1eddng \u0111\u1ebfn s\u1ea3n xu\u1ea5t thu\u1ed1c. \u0110i\u1ec1u n\u00e0y l\u00e0m cho l\u01b0\u1edbi l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a ng\u00e0y h\u00f4m nay’ B\u1ed9 c\u00f4ng c\u1ee5 khoa h\u1ecdc.<\/p>\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p:<\/b><\/strong><\/h2>\n

Q1: \u0110i\u1ec1u g\u00ec l\u00e0m cho l\u01b0\u1edbi x\u00fac x\u1ea1 ch\u00ednh x\u00e1c h\u01a1n k\u00ednh k\u00ednh?<\/b><\/strong>
\nA: L\u01b0\u1edbi x\u1ea1 quang lan r\u1ed9ng \u00e1nh s\u00e1ng theo c\u00e1ch g\u1ea7n nh\u01b0 th\u1eb3ng, tuy\u1ebfn t\u00ednh. \u0110i\u1ec1u n\u00e0y gi\u1eef kho\u1ea3ng c\u00e1ch gi\u1eefa m\u00e0u s\u1eafc ngay c\u1ea3 tr\u00ean ph\u1ed5. V\u00ec v\u1eady, \u0111i\u1ec1u n\u00e0y cung c\u1ea5p cho b\u1ea1n m\u1ed9t \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao h\u01a1n v\u00e0 c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c h\u01a1n. Tuy nhi\u00ean, k\u00ednh k\u00ednh c\u00f3 s\u1ef1 ph\u00e2n t\u00e1n phi tuy\u1ebfn t\u00ednh, c\u00f3 th\u1ec3 \u00e9p n\u00e9n ho\u1eb7c k\u00e9o d\u00e0i ph\u1ed5 \u1edf c\u00e1c \u0111i\u1ec3m kh\u00e1c nhau.<\/p>\n

Q2: T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ea3 k\u00ednh k\u00ednh v\u00e0 l\u01b0\u1edbi trong m\u1ed9t m\u00e1y quang ph\u1ed5 kh\u00f4ng?<\/b><\/strong>
\nA: N\u00f3’ Kh\u00f4ng ph\u1ed5 bi\u1ebfn v\u00ec h\u1ecd l\u00e0m c\u00f9ng m\u1ed9t c\u00f4ng vi\u1ec7c. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng lai \u0111\u1eb7c bi\u1ec7t c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ea3 hai. V\u00ed d\u1ee5, m\u1ed9t k\u00ednh k\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u1ecdc ho\u1eb7c ph\u00e2n lo\u1ea1i c\u01a1 b\u1ea3n tr\u01b0\u1edbc khi m\u1ed9t l\u01b0\u1edbi th\u1ef1c hi\u1ec7n ph\u00e2n t\u00edch th\u1ef1c s\u1ef1 chi ti\u1ebft.<\/p>\n

Q3: T\u1ea1i sao c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m hi\u1ec7n \u0111\u1ea1i th\u00edch m\u00e1y quang ph\u1ed5 l\u01b0\u1edbi?<\/b><\/strong>
\nA: C\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m hi\u1ec7n \u0111\u1ea1i ch\u1ecdn m\u00e1y ph\u1ed5 l\u01b0\u1edbi v\u00ec ch\u00fang ch\u00ednh x\u00e1c h\u01a1n tr\u00ean ph\u1ea1m vi \u00e1nh s\u00e1ng r\u1ed9ng h\u01a1n. H\u1ecd c\u0169ng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi c\u00e1c t\u00ednh n\u0103ng m\u1edbi nh\u01b0 gi\u00e1m s\u00e1t tr\u1ef1c ti\u1ebfp c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. \u0110\u1ed9 ch\u00ednh x\u00e1c cao c\u1ee7a ch\u00fang l\u00e0 ho\u00e0n to\u00e0n c\u1ea7n thi\u1ebft cho ph\u00e2n t\u00edch chi ti\u1ebft trong nhi\u1ec1u l\u0129nh v\u1ef1c, t\u1eeb nghi\u00ean c\u1ee9u c\u00e1c ng\u00f4i sao \u0111\u1ebfn ki\u1ec3m tra m\u00f4i tr\u01b0\u1eddng.<\/p>\n

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Spectroscopy is a key scientific tool. It lets scientists figure out what things are made of by looking at how they interact with light. A huge part of this is splitting light into its different component wavelengths. This job is done with either a prism or a diffraction grating. Each of these optical parts plays […]<\/p>\n","protected":false},"author":1,"featured_media":3873,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[81,36],"tags":[],"class_list":["post-3872","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-petrochemical-and-chemical","category-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/3872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/comments?post=3872"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/3872\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media\/3873"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=3872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=3872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=3872"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}