{"id":5823,"date":"2026-11-09T00:00:22","date_gmt":"2026-11-08T16:00:22","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=5823"},"modified":"2026-11-09T16:37:50","modified_gmt":"2026-11-09T08:37:50","slug":"how-do-you-measure-powders-and-films-with-a-uv-vis-spectrophotometer","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/vi\/news\/how-do-you-measure-powders-and-films-with-a-uv-vis-spectrophotometer","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111o l\u01b0\u1eddng b\u1ed9t v\u00e0 m\u00e0ng b\u1eb1ng m\u00e1y quang ph\u1ed5 UV-Vis?"},"content":{"rendered":"

\"L\u00e0m<\/p>\n

B\u1ed9t v\u00e0 m\u00e0ng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nh\u01b0 dung d\u1ecbch trong su\u1ed1t trong c\u1ed1c \u0111o chu\u1ea9n. B\u1ed9t c\u00f3 th\u1ec3 ph\u00e2n t\u00e1n, l\u1eafng \u0111\u1ecdng, n\u00e9n l\u1ea1i ho\u1eb7c c\u00f3 m\u1eadt \u0111\u1ed9 \u0111\u00f3ng g\u00f3i kh\u00e1c nhau gi\u1eefa c\u00e1c l\u1ea7n \u0111i\u1ec1u ch\u1ebf. M\u00e0ng c\u00f3 th\u1ec3 truy\u1ec1n \u00e1nh s\u00e1ng, ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng t\u1eeb m\u1ed9t ho\u1eb7c c\u1ea3 hai b\u1ec1 m\u1eb7t, ho\u1eb7c th\u1ec3 hi\u1ec7n hi\u1ec7u \u1ee9ng g\u00f3c v\u00e0 \u0111\u1ed9 d\u00e0y m\u1ea1nh. Do \u0111\u00f3, vi\u1ec7c thi\u1ebft l\u1eadp UV-Vis cho m\u1eabu r\u1eafn \u0111\u00fang c\u00e1ch b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c \u0111o t\u00edn hi\u1ec7u, ch\u1ee9 kh\u00f4ng ph\u1ea3i sao ch\u00e9p ph\u01b0\u01a1ng ph\u00e1p \u0111o ch\u1ea5t l\u1ecfng quen thu\u1ed9c sang d\u1ea1ng m\u1eabu kh\u00e1c.<\/p>\n

\u0110\u1ed1i v\u1edbi nh\u00f3m mua s\u1eafm ho\u1eb7c ph\u00e1t tri\u1ec3n ph\u01b0\u01a1ng ph\u00e1p, ba c\u00e2u h\u1ecfi quan tr\u1ecdng c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1eb7t ra \u0111\u1ea7u ti\u00ean: k\u1ebft qu\u1ea3 thu \u0111\u01b0\u1ee3c d\u1ef1a tr\u00ean truy\u1ec1n d\u1eabn tr\u1ef1c ti\u1ebfp, ph\u1ea3n x\u1ea1 khu\u1ebfch t\u00e1n, ph\u1ea3n x\u1ea1 to\u00e0n ph\u1ea7n, hay s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y; m\u1eabu th\u1eed s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed n\u00e0o; v\u00e0 ti\u00eau chu\u1ea9n tham chi\u1ebfu n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ph\u00e9p \u0111o? Nh\u1eefng quy\u1ebft \u0111\u1ecbnh n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ee5 ki\u1ec7n, h\u1ec7 th\u1ed1ng quang h\u1ecdc c\u1ee7a thi\u1ebft b\u1ecb, nghi\u00ean c\u1ee9u v\u1ec1 \u0111\u1ed9 l\u1eb7p l\u1ea1i v\u00e0 c\u00e1ch th\u1ee9c b\u00e1o c\u00e1o k\u1ebft qu\u1ea3.<\/p>\n

T\u00e1ch bi\u1ec7t s\u1ef1 h\u1ea5p th\u1ee5 kh\u1ecfi s\u1ef1 t\u00e1n x\u1ea1<\/b><\/strong><\/h2>\n

Dung d\u1ecbch trong su\u1ed1t ch\u1ee7 y\u1ebfu l\u00e0m thay \u0111\u1ed5i c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng \u0111i qua n\u00f3. B\u1ed9t c\u0169ng c\u00f3 th\u1ec3 l\u00e0m l\u1ec7ch h\u01b0\u1edbng \u00e1nh s\u00e1ng ra kh\u1ecfi b\u1ed9 \u0434\u0435\u0442\u0435\u043a\u0442\u043e\u0440, trong khi m\u00e0ng nh\u00e1m ho\u1eb7c m\u00e0ng ph\u1ee7 c\u00f3 th\u1ec3 t\u1ea1o ra c\u1ea3 th\u00e0nh ph\u1ea7n khu\u1ebfch t\u00e1n v\u00e0 ph\u1ea3n x\u1ea1. G\u1ecdi m\u1ecdi s\u1ef1 gi\u1ea3m t\u00edn hi\u1ec7u c\u1ee7a b\u1ed9 \u0434\u0435\u0442\u0435\u043a\u0442\u043e\u0440 l\u00e0 \u0111\u1ed9 h\u1ea5p th\u1ee5 c\u00f3 th\u1ec3 t\u1ea1o ra k\u1ebft qu\u1ea3 n\u1ed3ng \u0111\u1ed9 sai l\u1ec7ch. Ph\u01b0\u01a1ng ph\u00e1p c\u1ea7n n\u00eau r\u00f5 li\u1ec7u \u0111\u1ea7u ra h\u1eefu \u00edch l\u00e0 ph\u1ed5 h\u1ea5p th\u1ee5, ph\u1ed5 truy\u1ec1n d\u1eabn, ph\u1ed5 ph\u1ea3n x\u1ea1 khu\u1ebfch t\u00e1n hay gi\u00e1 tr\u1ecb ph\u1ea3n x\u1ea1 \u1edf c\u00e1c b\u01b0\u1edbc s\u00f3ng \u0111\u01b0\u1ee3c ch\u1ecdn.<\/p>\n

H\u00e3y s\u1eeda l\u1ed7i m\u1eabu tr\u01b0\u1edbc khi s\u1eeda l\u1ed7i c\u00e0i \u0111\u1eb7t.<\/b><\/strong><\/h3>\n

K\u1ebft qu\u1ea3 l\u1eb7p l\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 h\u01a1n l\u00e0 ch\u1ec9 b\u01b0\u1edbc s\u00f3ng v\u00e0 b\u0103ng th\u00f4ng. C\u1ea7n ghi l\u1ea1i t\u00ecnh tr\u1ea1ng h\u1ea1t b\u1ed9t, c\u00e1ch \u0111\u00f3ng g\u00f3i ho\u1eb7c chu\u1ea9n b\u1ecb vi\u00ean n\u00e9n, di\u1ec7n t\u00edch ti\u1ebfp x\u00fac, \u0111\u1ed9 d\u00e0y m\u00e0ng, h\u01b0\u1edbng b\u1ec1 m\u1eb7t, g\u00f3c v\u00e0 s\u1ed1 l\u01b0\u1ee3ng v\u1ecb tr\u00ed l\u1eb7p l\u1ea1i. N\u1ebfu m\u1eabu m\u1ec1m d\u1ebbo, b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t r\u00f5 r\u1ec7t, h\u00e3y \u0111o \u1edf nhi\u1ec1u h\u01a1n m\u1ed9t khu v\u1ef1c. M\u1ed9t thi\u1ebft b\u1ecb \u1ed5n \u0111\u1ecbnh kh\u00f4ng th\u1ec3 b\u00f9 tr\u1eeb cho m\u1eabu c\u00f3 \u0111\u01b0\u1eddng d\u1eabn quang h\u1ecdc kh\u00e1c nhau \u1edf m\u1ed7i l\u1ea7n \u0111o.<\/p>\n

C\u00e1ch \u0111ong b\u1ed9t<\/b><\/strong><\/h2>\n

Th\u00f4ng th\u01b0\u1eddng, vi\u1ec7c nghi\u00ean c\u1ee9u m\u1eabu b\u1ed9t \u0111\u01b0\u1ee3c chia th\u00e0nh hai ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c ti\u1ec5n. Ph\u01b0\u01a1ng ph\u00e1p th\u1ee9 nh\u1ea5t s\u1eed d\u1ee5ng gi\u00e1 \u0111\u1ee1 r\u1eafn ho\u1eb7c vi\u00ean n\u00e9n x\u00e1c \u0111\u1ecbnh \u0111\u1ec3 nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u trong m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn quang h\u1ecdc \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. Ph\u01b0\u01a1ng ph\u00e1p th\u1ee9 hai s\u1eed d\u1ee5ng h\u00ecnh h\u1ecdc ph\u1ea3n x\u1ea1, th\u01b0\u1eddng v\u1edbi m\u1ed9t qu\u1ea3 c\u1ea7u t\u00edch h\u1ee3p, khi s\u1ef1 t\u00e1n x\u1ea1 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a h\u00e0nh vi m\u1eabu ho\u1eb7c khi \u0111\u01b0\u1eddng truy\u1ec1n tr\u1ef1c ti\u1ebfp kh\u00f4ng kh\u1ea3 thi.<\/p>\n

S\u1eed d\u1ee5ng gi\u00e1 \u0111\u1ee1 ch\u1eafc ch\u1eafn cho c\u00e1c v\u1ecb tr\u00ed \u0111\u00e3 x\u00e1c \u0111\u1ecbnh.<\/b><\/strong><\/h3>\n

Gi\u00e1 \u0111\u1ee1 m\u1eabu r\u1eafn r\u1ea5t h\u1eefu \u00edch khi c\u00f3 th\u1ec3 c\u1ed1 \u0111\u1ecbnh m\u1ed9t l\u00e1t c\u1eaft, vi\u00ean n\u00e9n ho\u1eb7c v\u1eadt li\u1ec7u r\u1eafn \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb s\u1eb5n ngang qua ch\u00f9m tia. S\u1ea3n ph\u1ea9m c\u1ee7a PERSEE. T9DCS UV-Vis<\/u><\/strong><\/a>\u00a0\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u1eaft l\u00e1t c\u00e1c m\u1eabu v\u1eadt r\u1eafn, trong khi... T8DCS UV-vis<\/u><\/strong><\/a>\u00a0Thi\u1ebft b\u1ecb n\u00e0y h\u1ed7 tr\u1ee3 c\u00e1c m\u1eabu r\u1eafn c\u00f3 \u0111\u1ed9 d\u00e0y d\u01b0\u1edbi 5 mm v\u00e0 cho ph\u00e9p thay \u0111\u1ed5i v\u1ecb tr\u00ed trong m\u1ed9t ph\u1ea1m vi g\u00f3c nh\u1ea5t \u0111\u1ecbnh. Ph\u1ea7n c\u1ee9ng nh\u01b0 v\u1eady gi\u00fap ph\u00f2ng th\u00ed nghi\u1ec7m ki\u1ec3m so\u00e1t v\u1ecb tr\u00ed ch\u00f9m tia thay v\u00ec ph\u1ea3i gi\u1eef b\u1ed9t ho\u1eb7c m\u00e0ng b\u1eb1ng tay.<\/p>\n

S\u1eed d\u1ee5ng h\u1ec7 s\u1ed1 ph\u1ea3n x\u1ea1 khi hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n x\u1ea1 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a k\u1ebft qu\u1ea3.<\/b><\/strong><\/h3>\n

Ph\u00e9p \u0111o ph\u1ea3n x\u1ea1 UV-Vis ph\u00f9 h\u1ee3p h\u01a1n khi b\u1ec1 m\u1eb7t m\u1eabu ho\u1eb7c b\u1ed9t t\u00e1n x\u1ea1 \u00e1nh s\u00e1ng v\u00e0 \u0111\u01b0\u1eddng d\u1eabn cuvette th\u00f4ng th\u01b0\u1eddng s\u1ebd l\u00e0m m\u1ea5t th\u00f4ng tin h\u1eefu \u00edch. M\u1ed9t qu\u1ea3 c\u1ea7u t\u00edch h\u1ee3p c\u00f3 th\u1ec3 thu th\u1eadp \u00e1nh s\u00e1ng tr\u00ean ph\u1ea1m vi h\u01b0\u1edbng r\u1ed9ng h\u01a1n v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c ph\u00e9p \u0111o ph\u1ea3n x\u1ea1 khu\u1ebfch t\u00e1n, truy\u1ec1n to\u00e0n ph\u1ea7n, ph\u1ea3n x\u1ea1 to\u00e0n ph\u1ea7n v\u00e0 truy\u1ec1n t\u00e1n x\u1ea1. V\u1eadt li\u1ec7u tham chi\u1ebfu, h\u00ecnh d\u1ea1ng c\u1ed5ng, \u0111\u1ed9 ph\u1ee7 m\u1eabu v\u00e0 c\u1ea5u h\u00ecnh qu\u1ea3 c\u1ea7u v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh trong ph\u01b0\u01a1ng ph\u00e1p. Qu\u1ea3 c\u1ea7u t\u00edch h\u1ee3p kh\u00f4ng l\u00e0m cho b\u1ed9t \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb k\u00e9m tr\u1edf n\u00ean \u0111\u1ed3ng nh\u1ea5t.<\/p>\n

C\u00e1ch \u0111o k\u00edch th\u01b0\u1edbc phim<\/b><\/strong><\/h2>\n

Vi\u1ec7c \u0111o \u0111\u1ed9 truy\u1ec1n \u00e1nh s\u00e1ng tr\u00ean m\u00e0ng phim th\u01b0\u1eddng d\u1ec5 hi\u1ec3u h\u01a1n khi h\u00ecnh d\u1ea1ng h\u00ecnh h\u1ecdc \u0111\u01b0\u1ee3c xem nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a m\u00f4 t\u1ea3 m\u1eabu. M\u1ed9t m\u00e0ng phim trong su\u1ed1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed9 truy\u1ec1n \u00e1nh s\u00e1ng tr\u1ef1c ti\u1ebfp. M\u1ed9t b\u1ec1 m\u1eb7t quang h\u1ecdc \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp, m\u00e0ng phim m\u1edd \u0111\u1ee5c ho\u1eb7c polyme m\u1edd c\u00f3 th\u1ec3 c\u1ea7n \u0111\u1ebfn ph\u00e9p \u0111o \u0111\u1ed9 ph\u1ea3n x\u1ea1 g\u01b0\u01a1ng ho\u1eb7c ph\u1ea3n x\u1ea1 khu\u1ebfch t\u00e1n. C\u00f9ng m\u1ed9t lo\u1ea1i m\u00e0ng phim c\u00f3 th\u1ec3 cho k\u1ebft qu\u1ea3 kh\u00e1c nhau khi b\u1ec1 m\u1eb7t tr\u01b0\u1edbc v\u00e0 sau, g\u00f3c \u0111\u1ed9, v\u1eadt li\u1ec7u n\u1ec1n ho\u1eb7c di\u1ec7n t\u00edch ti\u1ebfp x\u00fac thay \u0111\u1ed5i.<\/p>\n

\"\u0110o<\/p>\n

Ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y, g\u00f3c \u0111\u1ed9 v\u00e0 l\u1edbp l\u00f3t<\/b><\/strong><\/h3>\n

\u0110\u1ed9 truy\u1ec1n quang c\u1ee7a m\u00e0ng phim c\u1ea7n \u0111\u01b0\u1ee3c li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9 d\u00e0y ho\u1eb7c \u00edt nh\u1ea5t l\u00e0 v\u1edbi \u0111i\u1ec1u ki\u1ec7n s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng. Gi\u1eef m\u00e0ng phim ph\u1eb3ng v\u00e0 n\u1eb1m \u1edf gi\u1eefa, lo\u1ea1i b\u1ecf c\u00e1c n\u1ebfp nh\u0103n v\u00e0 ghi l\u1ea1i xem ph\u00e9p \u0111o c\u00f3 bao g\u1ed3m l\u1edbp n\u1ec1n hay kh\u00f4ng. N\u1ebfu l\u1edbp n\u1ec1n g\u00e2y ra s\u1ef1 h\u1ea5p th\u1ee5 ho\u1eb7c ph\u1ea3n x\u1ea1 \u0111\u00e1ng k\u1ec3, h\u00e3y \u0111o ri\u00eang l\u1edbp n\u1ec1n v\u00e0 s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb tham chi\u1ebfu ph\u00f9 h\u1ee3p v\u1edbi ph\u00e9p t\u00ednh d\u1ef1 \u0111\u1ecbnh. \u0110\u1ed1i v\u1edbi th\u1ea5u k\u00ednh \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp v\u00e0 c\u00e1c b\u1ec1 m\u1eb7t t\u01b0\u01a1ng t\u1ef1, ph\u1ee5 ki\u1ec7n ph\u1ea3n x\u1ea1 g\u01b0\u01a1ng c\u00f3 th\u1ec3 cung c\u1ea5p nhi\u1ec1u th\u00f4ng tin h\u01a1n so v\u1edbi gi\u00e1 \u0111\u1ee1 \u0111o \u0111\u1ed9 truy\u1ec1n quang.<\/p>\n

Ki\u1ec3m tra t\u00ednh \u0111\u1ed3ng nh\u1ea5t tr\u00ean to\u00e0n b\u1ec1 m\u1eb7t<\/b><\/strong><\/h3>\n

M\u1ed9t ph\u1ed5 duy nh\u1ea5t c\u00f3 th\u1ec3 che gi\u1ea5u c\u00e1c v\u1ec7t ph\u1ee7, l\u1ed7 kim, c\u1ee5m s\u1eafc t\u1ed1 ho\u1eb7c hi\u1ec7u \u1ee9ng r\u00eca. S\u1eed d\u1ee5ng b\u1ea3n \u0111\u1ed3 v\u1ecb tr\u00ed nh\u1ecf cho c\u00f4ng vi\u1ec7c ph\u00e1t tri\u1ec3n v\u00e0 x\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng v\u1ecb tr\u00ed c\u1ea7n thi\u1ebft cho vi\u1ec7c ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 ho\u1eb7c ki\u1ec3m tra \u0111\u1ea7u v\u00e0o. B\u00e1o c\u00e1o khu v\u1ef1c v\u00e0 h\u01b0\u1edbng \u0111\u00e3 ch\u1ecdn. N\u1ebfu k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 so s\u00e1nh c\u00e1c l\u00f4 h\u00e0ng, th\u00ec c\u00f9ng m\u1ed9t thi\u1ebft b\u1ecb, tham chi\u1ebfu v\u00e0 tr\u00ecnh t\u1ef1 \u0111o l\u01b0\u1eddng c\u0169ng quan tr\u1ecdng nh\u01b0 b\u01b0\u1edbc s\u00f3ng danh ngh\u0129a.<\/p>\n

Ch\u1ecdn nh\u1ea1c c\u1ee5 v\u00e0 ph\u1ee5 ki\u1ec7n c\u00f9ng nhau<\/b><\/strong><\/h2>\n

M\u1ed9t thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 c\u00f3 d\u1ea3i b\u01b0\u1edbc s\u00f3ng c\u1ea7n thi\u1ebft cho m\u1eabu d\u1ea1ng b\u1ed9t ho\u1eb7c m\u00e0ng nh\u01b0ng v\u1eabn kh\u00f4ng ph\u00f9 h\u1ee3p n\u1ebfu khoang ch\u1ee9a m\u1eabu kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng h\u00ecnh d\u1ea1ng y\u00eau c\u1ea7u. T8DCS k\u1ebft h\u1ee3p quang h\u1ecdc ch\u00f9m tia k\u00e9p v\u1edbi b\u0103ng th\u00f4ng c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn li\u00ean t\u1ee5c t\u1eeb 0,1-5 nm v\u00e0 khoang ch\u1ee9a m\u1eabu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c ph\u1ee5 ki\u1ec7n t\u00f9y ch\u1ecdn. C\u00e1c ph\u1ee5 ki\u1ec7n \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea bao g\u1ed3m gi\u00e1 \u0111\u1ee1 m\u1eabu r\u1eafn, ph\u1ee5 ki\u1ec7n ph\u1ea3n x\u1ea1 g\u01b0\u01a1ng v\u00e0 qu\u1ea3 c\u1ea7u t\u00edch h\u1ee3p, bi\u1ebfn n\u00f3 th\u00e0nh m\u1ed9t n\u1ec1n t\u1ea3ng thi\u1ebft th\u1ef1c cho vi\u1ec7c ph\u00e1t tri\u1ec3n ph\u01b0\u01a1ng ph\u00e1p c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i gi\u1eefa dung d\u1ecbch, m\u00e0ng v\u00e0 m\u1eabu r\u1eafn.<\/p>\n

\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ph\u1ea3n x\u1ea1 cao h\u01a1n ho\u1eb7c ph\u1ea1m vi \u0111o r\u1ed9ng, T9DCS \u0111\u01b0\u1ee3c trang b\u1ecb khoang ch\u1ee9a m\u1eabu l\u1edbn ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c qu\u1ea3 c\u1ea7u t\u00edch h\u1ee3p 60 mm v\u00e0 150 mm, k\u00edch th\u01b0\u1edbc ch\u00f9m tia c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh v\u00e0 b\u0103ng th\u00f4ng c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn li\u00ean t\u1ee5c t\u1eeb 0,1-5 nm. Thi\u1ebft k\u1ebf quang h\u1ecdc c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 c\u00f3 \u0111\u1ed9 t\u00e1n x\u1ea1 \u00e1nh s\u00e1ng r\u1ea5t th\u1ea5p \u1edf b\u01b0\u1edbc s\u00f3ng 220 nm. T\u1eeb T<\/u><\/strong>7<\/u><\/strong>DS<\/u><\/strong>\u00a0<\/u><\/strong>Tia c\u1ef1c t\u00edm<\/u><\/strong>–<\/u><\/strong>V<\/u><\/strong>l\u00e0 m\u00e1y quang ph\u1ed5<\/u><\/strong><\/a>\u00a0\u0110\u00e2y l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn m\u00e1y qu\u00e9t hai ch\u00f9m tia kh\u00e1c khi vi\u1ec7c qu\u00e9t th\u00f4ng th\u01b0\u1eddng, l\u00e0m vi\u1ec7c v\u1edbi nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng v\u00e0 c\u00e1c ph\u1ee5 ki\u1ec7n linh ho\u1ea1t l\u00e0 nh\u1eefng \u01b0u ti\u00ean ch\u00ednh. PERSEE<\/u><\/strong><\/a>\u00a0C\u00f3 th\u1ec3 so s\u00e1nh c\u00e1c c\u1ea5u h\u00ecnh d\u1ef1a tr\u00ean h\u00ecnh d\u1ea1ng m\u1eabu, ph\u1ea1m vi quang h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 ph\u1ee5 ki\u1ec7n tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn c\u1ea5u h\u00ecnh cu\u1ed1i c\u00f9ng. Vi\u1ec7c l\u1ef1a ch\u1ecdn cu\u1ed1i c\u00f9ng n\u00ean d\u1ef1a tr\u00ean k\u00edch th\u01b0\u1edbc m\u1eabu th\u1ef1c t\u1ebf, h\u00ecnh d\u1ea1ng quang h\u1ecdc, ph\u1ea1m vi b\u01b0\u1edbc s\u00f3ng v\u00e0 m\u1ee5c ti\u00eau \u0111\u1ed9 l\u1eb7p l\u1ea1i.<\/p>\n

X\u00e2y d\u1ef1ng quy tr\u00ecnh l\u00e0m vi\u1ec7c m\u1eabu r\u1eafn c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i<\/b><\/strong><\/h2>\n

M\u1ed9t quy tr\u00ecnh h\u1eefu \u00edch c\u1ea7n ghi l\u1ea1i th\u00f4ng tin tham chi\u1ebfu, c\u00e1ch tr\u00ecnh b\u00e0y m\u1eabu, v\u1ecb tr\u00ed, g\u00f3c, kh\u1ea9u \u0111\u1ed9 ho\u1eb7c k\u00edch th\u01b0\u1edbc ch\u00f9m tia, c\u00e0i \u0111\u1eb7t b\u01b0\u1edbc s\u00f3ng, b\u0103ng th\u00f4ng v\u00e0 s\u1ed1 l\u1ea7n l\u1eb7p l\u1ea1i. Ch\u1ea1y m\u1ed9t m\u1eabu tham chi\u1ebfu tr\u01b0\u1edbc khi ch\u1ea1y lo\u1ea1t m\u1eabu v\u00e0 ki\u1ec3m tra xem ph\u1ea3n h\u1ed3i c\u1ee7a m\u1eabu tham chi\u1ebfu c\u00f3 c\u00f2n \u0111\u00e1ng tin c\u1eady sau khi ch\u1ea1y lo\u1ea1t m\u1eabu hay kh\u00f4ng. \u0110\u1ed1i v\u1edbi b\u1ed9t, h\u00e3y so s\u00e1nh c\u00e1c m\u1eabu l\u1eb7p l\u1ea1i khi vi\u1ec7c \u0111\u00f3ng g\u00f3i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a sai s\u1ed1. \u0110\u1ed1i v\u1edbi m\u00e0ng, h\u00e3y so s\u00e1nh v\u1ecb tr\u00ed v\u00e0 th\u00f4ng tin v\u1ec1 \u0111\u1ed9 d\u00e0y. N\u1ebfu k\u1ebft qu\u1ea3 ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea5m \u0111\u1ee1 ho\u1eb7c ch\u1ea5t n\u1ec1n, h\u00e3y gi\u1eef th\u00e0nh ph\u1ea7n \u0111\u00f3 trong thi\u1ebft k\u1ebf tham chi\u1ebfu thay v\u00ec coi n\u00f3 nh\u01b0 m\u1ed9t y\u1ebfu t\u1ed1 b\u1ed5 sung sau n\u00e0y.<\/p>\n

Ki\u1ec3m ch\u1ee9ng ph\u01b0\u01a1ng ph\u00e1p b\u1eb1ng m\u1eabu th\u1ef1c t\u1ebf<\/b><\/strong><\/h3>\n

Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng n\u1ec1n t\u1ea3ng c\u00f3 c\u00e1c ch\u1ee9c n\u0103ng quang h\u1ecdc c\u1ea7n thi\u1ebft, nh\u01b0ng ch\u00fang kh\u00f4ng thi\u1ebft l\u1eadp gi\u1edbi h\u1ea1n ch\u1ea5p nh\u1eadn chung cho m\u1ecdi lo\u1ea1i b\u1ed9t ho\u1eb7c m\u00e0ng. S\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ea1i di\u1ec7n, bao g\u1ed3m c\u1ea3 c\u00e1c m\u1eabu th\u00f4 nh\u1ea5t, m\u1edd nh\u1ea5t, m\u1ecfng nh\u1ea5t v\u00e0 k\u00e9m \u0111\u1ed3ng nh\u1ea5t nh\u1ea5t d\u1ef1 ki\u1ebfn \u200b\u200btrong c\u00f4ng vi\u1ec7c th\u01b0\u1eddng ng\u00e0y. Xem x\u00e9t \u1ea3nh h\u01b0\u1edfng c\u1ee7a b\u0103ng th\u00f4ng v\u00e0 k\u00edch th\u01b0\u1edbc ch\u00f9m tia tr\u01b0\u1edbc khi kh\u00f3a ph\u01b0\u01a1ng ph\u00e1p. \u0110\u01b0\u1eddng bi\u1ec3u di\u1ec5n c\u00f3 \u0111\u1ed9 nhi\u1ec5u th\u1ea5p ch\u1ec9 h\u1eefu \u00edch khi h\u00ecnh d\u1ea1ng m\u1eabu c\u0169ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n

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

C\u00e2u 1: C\u00f3 th\u1ec3 \u0111ong b\u1ed9t theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1 nh\u01b0 \u0111ong ch\u1ea5t l\u1ecfng trong su\u1ed1t kh\u00f4ng?<\/strong><\/p>\n

A1: Th\u00f4ng th\u01b0\u1eddng l\u00e0 kh\u00f4ng. S\u1ef1 t\u00e1n x\u1ea1 v\u00e0 \u0111\u00f3ng g\u00f3i b\u1ed9t c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i t\u00edn hi\u1ec7u thu \u0111\u01b0\u1ee3c, v\u00ec v\u1eady m\u1ed9t gi\u00e1 \u0111\u1ee1 r\u1eafn, ph\u01b0\u01a1ng ph\u00e1p vi\u00ean n\u00e9n x\u00e1c \u0111\u1ecbnh, thi\u1ebft l\u1eadp ph\u1ea3n x\u1ea1 ho\u1eb7c qu\u1ea3 c\u1ea7u t\u00edch h\u1ee3p c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p h\u01a1n so v\u1edbi m\u1ed9t cuvette ch\u1ea5t l\u1ecfng ti\u00eau chu\u1ea9n.<\/p>\n

C\u00e2u 2: Khi n\u00e0o th\u00ec qu\u1ea3 c\u1ea7u t\u00edch h\u1ee3p h\u1eefu \u00edch cho vi\u1ec7c l\u00e0m phim?<\/strong><\/p>\n

A2: Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y h\u1eefu \u00edch khi c\u1ea7n \u0111o \u0111\u1ed9 truy\u1ec1n khu\u1ebfch t\u00e1n, \u0111\u1ed9 truy\u1ec1n to\u00e0n ph\u1ea7n ho\u1eb7c \u0111\u1ed9 ph\u1ea3n x\u1ea1, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c m\u1eabu m\u1edd, t\u00e1n x\u1ea1, \u0111\u01b0\u1ee3c ph\u1ee7 ho\u1eb7c kh\u00f4ng ph\u1eb3ng. H\u00ecnh d\u1ea1ng h\u00ecnh c\u1ea7u v\u00e0 \u0111i\u1ec3m tham chi\u1ebfu ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh r\u00f5 trong ph\u01b0\u01a1ng ph\u00e1p.<\/p>\n

C\u00e2u 3: C\u1ea7n x\u00e1c nh\u1eadn nh\u1eefng g\u00ec tr\u01b0\u1edbc khi mua b\u1ed9 thi\u1ebft b\u1ecb \u0111o UV-Vis m\u1eabu r\u1eafn?<\/strong><\/p>\n

A3: X\u00e1c nh\u1eadn k\u00edch th\u01b0\u1edbc m\u1eabu, \u0111\u1ed9 d\u00e0y, lo\u1ea1i b\u1ec1 m\u1eb7t, ch\u1ebf \u0111\u1ed9 truy\u1ec1n ho\u1eb7c ph\u1ea3n x\u1ea1, ph\u1ea1m vi g\u00f3c, k\u00edch th\u01b0\u1edbc h\u00ecnh c\u1ea7u, ph\u1ea1m vi b\u01b0\u1edbc s\u00f3ng, \u0111i\u1ec1u ch\u1ec9nh ch\u00f9m tia v\u00e0 s\u1ed1 l\u01b0\u1ee3ng v\u1ecb tr\u00ed th\u01b0\u1eddng quy. Vi\u1ec7c tr\u00ecnh b\u00e0y m\u1ed9t m\u1eabu \u0111\u1ea1i di\u1ec7n s\u1ebd cung c\u1ea5p nhi\u1ec1u th\u00f4ng tin h\u01a1n so v\u1edbi ch\u1ec9 s\u1eed d\u1ee5ng m\u1eabu chu\u1ea9n d\u1ea1ng l\u1ecfng.<\/p>","protected":false},"excerpt":{"rendered":"

Powders and films do not behave like clear solutions in a standard cuvette. A powder can scatter, settle, compress, or present different packing densities from one preparation to the next. A film can transmit light, reflect it from one or both surfaces, or show a strong angle and thickness effect. The right solid sample UV-Vis […]<\/p>\n","protected":false},"author":1,"featured_media":5819,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[38,37],"tags":[],"class_list":["post-5823","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\/5823","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=5823"}],"version-history":[{"count":3,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5823\/revisions"}],"predecessor-version":[{"id":5828,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/5823\/revisions\/5828"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media\/5819"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=5823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=5823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=5823"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}