{"id":4336,"date":"2026-01-27T00:00:10","date_gmt":"2026-01-26T16:00:10","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=4336"},"modified":"2026-01-26T14:19:28","modified_gmt":"2026-01-26T06:19:28","slug":"ftir-vs-raman-spectroscopy-key-differences-and-when-to-use-which","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/vi\/news\/ftir-vs-raman-spectroscopy-key-differences-and-when-to-use-which\/","title":{"rendered":"So s\u00e1nh FTIR v\u00e0 quang ph\u1ed5 Raman: Nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh v\u00e0 khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0o."},"content":{"rendered":"

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\"FTIR<\/div>\n

Ph\u1ed5 quang FTIR (Fourier Transform Infrared) ph\u00e1t hi\u1ec7n s\u1ef1 rung \u0111\u1ed9ng ph\u00e2n t\u1eed b\u1eb1ng c\u00e1ch ki\u1ec3m tra c\u00e1ch c\u00e1c ph\u00e2n t\u1eed h\u1ea5p th\u1ee5 b\u1ee9c x\u1ea1 h\u1ed3ng ngo\u1ea1i trung t\u00e2m. M\u00f4 h\u00ecnh n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ch\u1ebf \u0111\u1ed9 rung kh\u00e1c nhau c\u1ee7a c\u00e1c li\u00ean k\u1ebft h\u00f3a h\u1ecdc c\u1ee7a n\u00f3. M\u1ed9t m\u1eabu \u0111\u1ed1i m\u1eb7t v\u1edbi b\u1ee9c x\u1ea1 IR. Sau \u0111\u00f3, m\u1ed9t s\u1ed1 t\u1ea7n s\u1ed1 \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5. \u0110i\u1ec1u n\u00e0y x\u1ea3y ra d\u1ef1a tr\u00ean c\u1ea5u tr\u00fac ph\u00e2n t\u1eed v\u00e0 c\u00e1c nh\u00f3m ch\u1ee9c n\u0103ng \u1edf \u0111\u00f3.<\/p>\n

C\u01a1 ch\u1ebf n\u00e0o th\u00fac \u0111\u1ea9y vi\u1ec7c t\u1ea1o t\u00edn hi\u1ec7u trong quang ph\u1ed5 Raman?<\/strong><\/h3>\n

Ph\u1ed5 Raman ph\u00e1t hi\u1ec7n s\u1ef1 ph\u00e2n t\u00e1n kh\u00f4ng \u0111\u00e0n h\u1ed3i c\u1ee7a \u00e1nh s\u00e1ng \u0111\u01a1n m\u00e0u. Photon g\u1eb7p s\u1ef1 rung \u0111\u1ed9ng ph\u00e2n t\u1eed. H\u1ea7u h\u1ebft ph\u00e2n t\u00e1n tr\u1edf l\u1ea1i \u0111\u00e0n h\u1ed3i. \u0110\u00f3’ Rayleigh ph\u00e2n t\u00e1n. Nh\u01b0ng m\u1ed9t ch\u00fat nh\u1ecf thay \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng. \u0110i\u1ec1u n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi ch\u1ebf \u0111\u1ed9 rung. N\u00f3’ s Raman ph\u00e2n t\u00e1n. Nh\u1eefng thay \u0111\u1ed5i nh\u01b0 v\u1eady cung c\u1ea5p r\u1ea5t nhi\u1ec1u chi ti\u1ebft c\u1ea5u tr\u00fac.<\/p>\n

Ph\u1ed5 Raman nh\u1eadn \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e2n t\u00e1n kh\u00f4ng \u0111\u00e0n h\u1ed3i c\u1ee7a \u00e1nh s\u00e1ng \u0111\u01a1n m\u00e0u. N\u00f3 th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u1ed9t ngu\u1ed3n laser. Kh\u00f4ng gi\u1ed1ng nh\u01b0 FTIR, Raman ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n cho c\u00e1c tr\u00e1i phi\u1ebfu phi c\u1ef1c. H\u00e3y ngh\u0129 v\u1ec1 C = C, S-S v\u00e0 c\u00e1c v\u00f2ng th\u01a1m. V\u00ec v\u1eady, n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ph\u00e2n t\u1eed \u0111\u1ed1i x\u1ee9ng. Nh\u1eefng don’ t hi\u1ec3n th\u1ecb nhi\u1ec1u trong IR.<\/p>\n

C\u1ea5u h\u00ecnh d\u1ee5ng c\u1ee5 kh\u00e1c nhau gi\u1eefa FTIR v\u00e0 Raman nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h2>\n

C\u00e1c c\u00f4ng c\u1ee5 FTIR th\u01b0\u1eddng d\u1ef1a v\u00e0o m\u1ed9t m\u00e1y can thi\u1ec7p Michelson. N\u00f3 \u0111i\u1ec1u ch\u1ec9nh t\u00edn hi\u1ec7u h\u1ed3ng ngo\u1ea1i. C\u00e1c ch\u00f9m \u0111i qua m\u1ed9t ph\u00e2n chia ch\u00f9m. C\u00e1c v\u1eadt li\u1ec7u nh\u01b0 KBr ho\u1eb7c ZnSe l\u00e0m cho n\u00f3. B\u1ed9 chia chia chia ch\u00f9m \u00e1nh s\u00e1ng. Sau \u0111\u00f3 n\u00f3 k\u1ebft h\u1ee3p l\u1ea1i ch\u00fang. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t m\u00f4 h\u00ecnh can thi\u1ec7p. Bi\u1ebfn \u0111\u1ed5i Fourier bi\u1ebfn \u0111i\u1ec1u n\u00e0y th\u00e0nh ph\u1ed5 h\u1ea5p th\u1ee5. S\u1eed d\u1ee5ng interferometer. H\u1ea7u h\u1ebft \u0111\u1ec1u l\u00e0 ki\u1ec3u Michelson \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh t\u00edn hi\u1ec7u. M\u00e1y d\u00f2 nh\u01b0 DTGS ho\u1eb7c MCT gi\u00fap. Ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u nh\u1ea1y c\u1ea3m kh\u00e1c nhau.<\/p>\n

M\u00e1y quang ph\u1ed5 Raman \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 c\u00f3 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u?<\/strong><\/h3>\n

M\u1ed9t thi\u1ebft l\u1eadp Raman bao g\u1ed3m m\u1ed9t ngu\u1ed3n laser \u0111\u1ec3 k\u00edch th\u00edch. N\u00f3 c\u0169ng c\u00f3 b\u1ed9 l\u1ecdc quang h\u1ecdc. Nh\u1eefng t\u00edn hi\u1ec7u Raman b\u1ecb c\u00f4 l\u1eadp. M\u1ed9t m\u00e1y d\u00f2 CCD ghi l\u1ea1i \u00e1nh s\u00e1ng ph\u00e2n t\u00e1n. T\u00edch h\u1ee3p k\u00ednh hi\u1ec3n vi mang l\u1ea1i \u0111\u1ed9 ph\u00e2n gi\u1ea3i kh\u00f4ng gian cao. Raman v\u1eabn kh\u00f4ng h\u1ee7y di\u1ec7t. N\u00f3 c\u1ea7n \u00edt chu\u1ea9n b\u1ecb. V\u00ec v\u1eady, n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1eabu tinh t\u1ebf ho\u1eb7c kh\u00f3 kh\u0103n t\u1ed1t. N\u00f3 s\u1eed d\u1ee5ng m\u1ed9t ngu\u1ed3n laser. B\u1ed9 l\u1ecdc quang h\u1ecdc ti\u1ebfp theo. M\u00e1y d\u00f2 CCD thu th\u1eadp t\u00edn hi\u1ec7u.<\/p>\n

\u0110i\u1ec1u ki\u1ec7n m\u1eabu n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi m\u1ed7i k\u1ef9 thu\u1eadt?<\/strong><\/h2>\n

FTIR x\u1eed l\u00fd ch\u1ea5t r\u1eafn. V\u00ed d\u1ee5, vi\u00ean KBr ho\u1ea1t \u0111\u1ed9ng t\u1ed1t. N\u00f3 l\u1ea5y ch\u1ea5t l\u1ecfng trong c\u00e1c t\u1ebf b\u00e0o l\u1ecfng. Kh\u00ed \u0111i v\u00e0o c\u00e1c t\u1ebf b\u00e0o kh\u00ed. Tuy nhi\u00ean, c\u00e1c m\u1eabu th\u01b0\u1eddng c\u1ea7n s\u1ea5y kh\u00f4. N\u01b0\u1edbc h\u1ea5p th\u1ee5 IR m\u1ea1nh m\u1ebd. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 che gi\u1ea5u c\u00e1c t\u00edn hi\u1ec7u quan tr\u1ecdng. H\u1ea5p th\u1ee5 n\u01b0\u1edbc c\u00f3 th\u1ec3 l\u00e0m r\u1ed1i quang ph\u1ed5. V\u00ec v\u1eady, kh\u00f4 m\u1eabu c\u00f3 th\u1ec3 l\u00e0 c\u1ea7n thi\u1ebft.<\/p>\n

T\u1ea1i sao Raman \u0111\u01b0\u1ee3c \u01b0a th\u00edch cho c\u00e1c m\u1eabu n\u01b0\u1edbc ho\u1eb7c tinh t\u1ebf?<\/strong><\/h3>\n

Raman t\u1ecfa s\u00e1ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u1ea7y n\u01b0\u1edbc. N\u01b0\u1edbc h\u1ea7u nh\u01b0 kh\u00f4ng can thi\u1ec7p. N\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 polymer, s\u1eafc t\u1ed1 ho\u1eb7c m\u00f4 sinh h\u1ecdc. Ch\u00fang c\u00f3 th\u1ec3 th\u00e1ch th\u1ee9c c\u00e1c ph\u01b0\u01a1ng ph\u00e1p IR. Kh\u00f4ng c\u00f3 ti\u1ebfp x\u00fac m\u1eabu c\u00f3 ngh\u0129a l\u00e0 ph\u00e2n t\u00edch in situ. B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra qua l\u1ecd th\u1ee7y tinh ho\u1eb7c c\u00e1c th\u00f9ng ch\u1ee9a t\u01b0\u01a1ng t\u1ef1. N\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t cho c\u00e1c gi\u1ea3i ph\u00e1p n\u01b0\u1edbc. S\u1ef1 can thi\u1ec7p c\u1ee7a n\u01b0\u1edbc v\u1eabn th\u1ea5p.<\/p>\n

FTIR v\u00e0 Raman so s\u00e1nh v\u1ec1 \u0111\u1ed9 nh\u1ea1y c\u1ea3m v\u00e0 t\u00ednh ch\u1ecdn l\u1ecdc nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h2>\n

FTIR mang l\u1ea1i \u0111\u1ed9 nh\u1ea1y m\u1ea1nh m\u1ebd v\u1edbi c\u00e1c tr\u00e1i phi\u1ebfu c\u1ef1c. N\u00f3 ph\u00e1t hi\u1ec7n c\u00e1c c\u0103ng th\u1eb3ng carbonyl (C = O) d\u1ec5 d\u00e0ng. C\u00e1c nh\u00f3m hydroxyl (O-H) xu\u1ea5t hi\u1ec7n t\u1ed1t. Amine (N-H) c\u0169ng v\u1eady. T\u1ea5t c\u1ea3 nh\u1eefng \u0111i\u1ec1u n\u00e0y h\u1ea5p th\u1ee5 IR m\u1ea1nh m\u1ebd. N\u00f3’ s d\u1ec5 b\u1ecb li\u00ean k\u1ebft c\u1ef1c.<\/p>\n

Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m ph\u00e2n t\u1eed n\u00e0o \u0111\u01b0\u1ee3c Raman ch\u1ee5p l\u1ea1i t\u1ed1t h\u01a1n?<\/strong><\/h3>\n

Raman n\u1ed5i b\u1eadt cho c\u00e1c li\u00ean k\u1ebft \u0111\u1ed1i x\u1ee9ng v\u00e0 kh\u00f4ng c\u1ef1c. N\u00f3 b\u1eaft \u0111\u01b0\u1ee3c li\u00ean k\u1ebft k\u00e9p C = C r\u00f5 r\u00e0ng. H\u1ec7 th\u1ed1ng th\u01a1m c\u00f3 v\u1ebb m\u1ea1nh m\u1ebd. Nh\u01b0ng hu\u1ef3nh quang trong m\u1ed9t s\u1ed1 m\u1eabu c\u00f3 th\u1ec3 ch\u1eb7n n\u00f3. \u0110i\u1ec1u \u0111\u00f3 che gi\u1ea5u c\u00e1c t\u00edn hi\u1ec7u Raman m\u1edd nh\u1ea1t. N\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi c\u00e1c tr\u00e1i phi\u1ebfu kh\u00f4ng c\u1ef1c.<\/p>\n

C\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng quang ph\u1ed5 nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h2>\n

Ph\u00f2ng CO \u2082 and H\u2082 O h\u01a1i n\u01b0\u1edbc th\u00eam ti\u1ebfng \u1ed3n l\u1edbn v\u00e0o ph\u1ed5 FTIR. H\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 c\u1ea7n thanh l\u1ecdc. Kh\u00f4ng kh\u00ed kh\u00f4 ho\u1eb7c nit\u01a1 gi\u00fap. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m s\u1ef1 h\u1ea5p th\u1ee5 n\u1ec1n. Ph\u00f2ng CO \u2082 and H\u2082 O mang l\u1ea1i ti\u1ebfng \u1ed3n n\u1ec1n. S\u1ea1ch s\u1ebd c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n

C\u00f4ng su\u1ea5t laser v\u00e0 hu\u1ef3nh quang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u00e2n t\u00edch Raman nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/h3>\n

N\u00e2ng c\u00f4ng su\u1ea5t laser t\u0103ng c\u01b0\u1eddng t\u00edn hi\u1ec7u. Nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 l\u00e0m n\u00f3ng ho\u1eb7c l\u00e0m h\u1ecfng c\u00e1c v\u1eadt nh\u1ea1y c\u1ea3m. M\u1ed9t s\u1ed1 m\u1eabu hu\u1ef3nh quang r\u1ea5t nhi\u1ec1u. \u0110i\u1ec1u \u0111\u00f3 l\u00e0m ch\u00ecm t\u00edn hi\u1ec7u Raman. V\u00ec v\u1eady, \u0111i\u1ec1u ch\u1ec9nh b\u01b0\u1edbc s\u00f3ng laser v\u00e0 c\u00f4ng su\u1ea5t r\u1ea5t quan tr\u1ecdng. Hu\u1ef3nh quang t\u1eeb c\u00e1c t\u1ea1p ch\u1ea5t c\u00f3 th\u1ec3 che gi\u1ea5u c\u00e1c t\u00edn hi\u1ec7u Raman y\u1ebfu.<\/p>\n

Khi n\u00e0o b\u1ea1n n\u00ean ch\u1ecdn FTIR h\u01a1n Raman - ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i?<\/strong><\/h2>\n

Ch\u1ecdn FTIR cho c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 c\u1ef1c. ID nh\u00f3m ch\u1ee9c n\u0103ng l\u00e0 r\u1ea5t quan tr\u1ecdng \u1edf \u0111\u00e2y. N\u00f3 c\u0169ng h\u1ed7 tr\u1ee3 c\u00f4ng vi\u1ec7c \u0111\u1ecbnh l\u01b0\u1ee3ng th\u00f4ng qua c\u00e1c m\u00f4 h\u00ecnh hi\u1ec7u chu\u1ea9n. Ph\u00e1t hi\u1ec7n c\u00e1c nh\u00f3m ch\u1ee9c n\u0103ng h\u1eefu c\u01a1 trong polymer ho\u1eb7c d\u01b0\u1ee3c ph\u1ea9m.<\/p>\n

Khi n\u00e0o quang ph\u1ed5 Raman l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n?<\/strong><\/h3>\n

Raman ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ch\u1ea5t tinh th\u1ec3 ho\u1eb7c v\u1eadt li\u1ec7u v\u00f4 c\u01a1. Gi\u1ed1ng nh\u01b0 kho\u00e1ng s\u1ea3n, n\u01a1i h\u1ea5p th\u1ee5 IR ch\u1eadm. N\u00f3 ph\u00e2n t\u00edch th\u00f4ng qua c\u00e1c container r\u00f5 r\u00e0ng. Kh\u00f4ng c\u1ea7n li\u00ean l\u1ea1c tr\u1ef1c ti\u1ebfp. \u0110i\u1ec1u n\u00e0y gi\u00fap trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 khoa h\u1ecdc ph\u00e1p y. Ph\u00e2n t\u00edch t\u1ea1i ch\u1ed7 th\u00f4ng qua c\u00e1c container r\u00f5 r\u00e0ng. Kh\u00f4ng c\u1ea7n li\u00ean l\u1ea1c m\u1eabu.<\/p>\n

C\u1ea3 hai k\u1ef9 thu\u1eadt c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng nhau \u0111\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 t\u1ed1t h\u01a1n kh\u00f4ng?<\/strong><\/h2>\n

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\"M\u00e1y<\/div>\n

FTIR v\u00e0 Raman \u0111\u00e1nh v\u00e0o c\u00e1c ch\u1ebf \u0111\u1ed9 rung kh\u00e1c nhau. M\u1ed9t bao g\u1ed3m IR-active. C\u00e1i kh\u00e1c l\u00e0 Raman-active. C\u00f9ng nhau, ch\u00fang t\u1ea1o ra m\u1ed9t b\u1ee9c tranh rung \u0111\u1ed9ng \u0111\u1ea7y \u0111\u1ee7. \u0110i\u1ec1u n\u00e0y th\u00fac \u0111\u1ea9y s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ea5u tr\u00fac. \u0110\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u c\u1ee9ng nh\u01b0 c\u00e1c m\u00f4 sinh h\u1ecdc ho\u1eb7c nanocomposites. Trong th\u1ef1c t\u1ebf, c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m th\u01b0\u1eddng gh\u00e9p c\u00e1c c\u00f4ng c\u1ee5 n\u00e0y \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c chi ti\u1ebft m\u00e0 m\u1ed9t m\u00ecnh c\u00f3 th\u1ec3 b\u1ecf l\u1ee1. V\u00ed d\u1ee5, trong nghi\u00ean c\u1ee9u c\u00e1c c\u00f4ng th\u1ee9c thu\u1ed1c, FTIR ti\u1ebft l\u1ed9 c\u00e1c t\u01b0\u01a1ng t\u00e1c c\u1ef1c trong khi Raman nh\u1ea5n m\u1ea1nh c\u00e1c li\u00ean k\u1ebft \u0111\u1ed1i x\u1ee9ng trong l\u01b0\u1edbi tinh th\u1ec3. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p k\u1ebft h\u1ee3p nh\u01b0 v\u1eady d\u1eabn \u0111\u1ebfn k\u1ebft lu\u1eadn \u0111\u00e1ng tin c\u1eady h\u01a1n v\u00e0 hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 th\u00e0nh ph\u1ea7n m\u1eabu. Ch\u00fang cung c\u1ea5p ph\u1ed5 rung ho\u00e0n ch\u1ec9nh. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m c\u1ea3 ch\u1ebf \u0111\u1ed9 IR-active v\u00e0 Raman-active.<\/p>\n

Ai cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady cho c\u00e1c nhu c\u1ea7u quang ph\u1ed5 n\u00e0y?<\/strong><\/h2>\n

C\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m t\u00ecm ki\u1ebfm c\u00e1c c\u00f4ng c\u1ee5 r\u1eafn trong quang ph\u1ed5 chuy\u1ec3n sang PERSEE<\/strong><\/a>. B\u1eaft \u0111\u1ea7u v\u00e0o n\u0103m 1991, n\u00f3’ l\u00e0 m\u1ed9t c\u00f4ng ty c\u00f4ng ngh\u1ec7 cao. N\u00f3 x\u1eed l\u00fd R & amp; D, s\u1ea3n xu\u1ea5t v\u00e0 b\u00e1n h\u00e0ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi t\u1ea5t c\u1ea3 trong nh\u00e0. Ch\u1ee9ng nh\u1eadn ISO9001 v\u00e0 CE tr\u1edf l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a n\u00f3. PERSEE t\u1eadp trung v\u00e0o s\u1ef1 \u0111\u1ed5i m\u1edbi \u1ed5n \u0111\u1ecbnh. N\u00f3 cung c\u1ea5p h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt m\u1ea1nh m\u1ebd. Th\u00eam v\u00e0o \u0111\u00f3, ph\u1ea1m vi to\u00e0n c\u1ea7u l\u00e0m cho n\u00f3 d\u1ec5 d\u00e0ng truy c\u1eadp. S\u1ea3n ph\u1ea9m c\u1ee7a h\u1ecd gi\u00fap c\u00e1c nh\u00e0 khoa h\u1ecdc trong nhi\u1ec1u l\u0129nh v\u1ef1c. C\u00e1c c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng cho \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 s\u1eed d\u1ee5ng l\u00e2u d\u00e0i cho ph\u00e9p l\u00e0m vi\u1ec7c t\u1ed1t h\u01a1n. V\u00ed d\u1ee5, d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady trong c\u00e1c ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean ho\u1eb7c th\u00ed nghi\u1ec7m ti\u00ean ti\u1ebfn. S\u1ef1 tin t\u01b0\u1edfng n\u00e0y \u0111\u1ebfn t\u1eeb nhi\u1ec1u n\u0103m cung c\u1ea5p thi\u1ebft b\u1ecb \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a th\u1ebf gi\u1edbi th\u1ef1c m\u00e0 kh\u00f4ng th\u1ea5t b\u1ea1i. T\u1eeb m\u00e1y quang ph\u1ed5 UV \/ VIS nh\u01b0 D\u00f2ng T7<\/u><\/strong><\/a> cho c\u00e1c h\u1ec7 th\u1ed1ng FTIR ti\u00ean ti\u1ebfn nh\u01b0 FTIR8000<\/u><\/strong><\/a>PERSEE cam k\u1ebft \u0111\u1ed5i m\u1edbi v\u00e0 h\u1ed7 tr\u1ee3.<\/p>\n

Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0o n\u00ean h\u01b0\u1edbng d\u1eabn qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn d\u1ee5ng c\u1ee5 c\u1ee7a b\u1ea1n?<\/strong><\/h2>\n

\u0110i cho FTIR n\u1ebfu b\u1ea1n \u0111\u1ed1i ph\u00f3 v\u1edbi c\u00e1c nh\u00f3m ch\u1ee9c n\u0103ng c\u1ef1c trong c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1. \u0110i\u1ec1u ki\u1ec7n kh\u00f4 ph\u00f9 h\u1ee3p v\u1edbi n\u00f3. Ph\u00e2n t\u00edch \u0111\u1ecbnh l\u01b0\u1ee3ng c\u0169ng y\u00eau c\u1ea7u n\u00f3. Ch\u1ecdn Raman cho c\u00e1c thi\u1ebft l\u1eadp n\u01b0\u1edbc, v\u1eadt li\u1ec7u v\u00f4 c\u01a1 ho\u1eb7c chu\u1ea9n b\u1ecb nhanh ch\u00f3ng. \u0110\u1ed1i v\u1edbi c\u00e1c quan \u0111i\u1ec3m ph\u00e2n t\u1eed \u0111\u1ea7y \u0111\u1ee7, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u h\u1ed7n h\u1ee3p, c\u1ea3 hai k\u1ef9 thu\u1eadt c\u00f9ng nhau cung c\u1ea5p c\u00e1i nh\u00ecn s\u00e2u s\u1eafc nh\u1ea5t. H\u00e3y xem x\u00e9t ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a b\u1ea1n’ m\u1ee5c ti\u00eau s. H\u00e3y ngh\u0129 v\u1ec1 c\u00e1c lo\u1ea1i m\u1eabu th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u1eed l\u00fd. Ng\u00e2n s\u00e1ch \u0111\u00f3ng m\u1ed9t vai tr\u00f2, c\u0169ng nh\u01b0 d\u1ec5 s\u1eed d\u1ee5ng. Nhu c\u1ea7u \u0111\u00e0o t\u1ea1o quan tr\u1ecdng \u0111\u1ed1i v\u1edbi nh\u00e2n vi\u00ean.<\/p>\n

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

Q1: Nh\u1eefng h\u1ea1n ch\u1ebf ch\u00ednh khi s\u1eed d\u1ee5ng quang ph\u1ed5 trong ph\u00e2n t\u00edch FTIR l\u00e0 g\u00ec?
\n<\/strong>A1: M\u00e1y quang ph\u1ed5 FTIR nh\u1eadn \u0111\u1ed9 \u1ea9m kh\u00ed quy\u1ec3n v\u00e0 CO \u2082 d\u1ec5 d\u00e0ng. Nh\u1eefng r\u1ed1i lo\u1ea1n n\u00e0y v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c quang ph\u1ed5. X\u00f3a ho\u1eb7c s\u1eeda n\u1ec1n s\u1eeda ch\u1eefa n\u00f3, nh\u01b0ng b\u1ea1n ph\u1ea3i l\u00e0m \u0111i\u1ec1u \u0111\u00f3 \u0111\u00fang c\u00e1ch.<\/p>\n

Q2: Ph\u1ed5 Raman c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho ph\u00e2n t\u00edch \u0111\u1ecbnh l\u01b0\u1ee3ng nh\u01b0 FTIR kh\u00f4ng?
\n<\/strong>A2: N\u00f3’ ch\u1ee7 y\u1ebfu l\u00e0 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng. Nh\u01b0ng c\u00f4ng vi\u1ec7c \u0111\u1ecbnh l\u01b0\u1ee3ng ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00e1c m\u00f4 h\u00ecnh hi\u1ec7u chu\u1ea9n. B\u1ea1n c\u1ea7n theo d\u00f5i c\u01b0\u1eddng \u0111\u1ed9 laser c\u1ea9n th\u1eadn. M\u1eabu \u0111\u1ed3ng nh\u1ea5t c\u0169ng \u0111\u01b0\u1ee3c t\u00ednh. Thi\u1ebft l\u1eadp th\u00edch h\u1ee3p l\u00e0m cho n\u00f3 \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 \u0111o n\u1ed3ng \u0111\u1ed9 trong c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n

Q3: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh gi\u1eefa m\u1ed9t m\u00e1y quang ph\u1ed5 M7 UV \/ VIS v\u00e0 m\u1ed9t FTIR8000<\/strong> h\u1ec7 th\u1ed1ng Persea?
\nA3: M7<\/strong><\/a> ph\u00f9 h\u1ee3p v\u1edbi chuy\u1ec3n ti\u1ebfp \u0111i\u1ec7n t\u1eed trong c\u00e1c khu v\u1ef1c UV \/ VIS. Gi\u1ed1ng nh\u01b0 c\u00e1c x\u00e9t nghi\u1ec7m \u0111o m\u00e0u, n\u00f3 t\u1ecfa s\u00e1ng \u1edf \u0111\u00f3. FTIR8000 x\u1eed l\u00fd rung ph\u00e2n t\u1eed trong c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1. Ch\u1ecdn d\u1ef1a tr\u00ean c\u00e1c ph\u00e2n t\u00edch c\u1ee7a b\u1ea1n’ \u0111\u1eb7c \u0111i\u1ec3m ph\u1ed5. N\u1ebfu b\u1ea1n c\u1ea7n d\u1eef li\u1ec7u h\u1ea5p th\u1ee5 r\u1ed9ng r\u00e3i, FTIR s\u1ebd chi\u1ebfn th\u1eafng. \u0110\u1ec3 ki\u1ec3m tra tia c\u1ef1c t\u00edm nhanh h\u01a1n, h\u00e3y \u0111i M7. C\u1ea3 hai t\u1eeb PERSEE \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng x\u00e2y d\u1ef1ng v\u00e0 h\u1ed7 tr\u1ee3.<\/p>","protected":false},"excerpt":{"rendered":"

  FTIR (Fourier Transform Infrared) spectroscopy spots molecular vibrations by checking how molecules absorb mid-infrared radiation. \u00a0This pattern matches various vibrational modes of its chemical bonds. A sample faces IR radiation. Then, certain frequencies get absorbed. This happens based on the molecular structure and functional groups there. What Mechanism Drives Signal Generation in Raman Spectroscopy? […]<\/p>\n","protected":false},"author":1,"featured_media":4331,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[38,37],"tags":[],"class_list":["post-4336","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-information","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/4336","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=4336"}],"version-history":[{"count":3,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/4336\/revisions"}],"predecessor-version":[{"id":4341,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/4336\/revisions\/4341"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media\/4331"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=4336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=4336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=4336"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}