Novel assay of thiamine based on its enhancement of total internal reflected resonance light scattering signals of sodium dodecylbenzene sulfonate at the water/tetrachloromethane interface

被引：17

作者：

Lu, W ^{[1
]}

Huang, CZ ^{[1
]}

Li, YF ^{[1
]}

机构：

[1] SW Normal Univ, Coll Chem & Chem Engn, Inst Environm Chem, Chongqing 400715, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2003年 / 475卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

thiamine; sodium dodecylbenzene sulfonate; total internal reflected resonance light scattering;

D O I：

10.1016/S0003-2670(02)01228-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new assay of thiamine (Vitamin B I) is proposed by use of total internal reflected resonance light scattering (TIR-RLS) with high selectivity and sensitivity. At pH 3.29 and ionic strength 0.003, the adsorption of thiamine with anionic surfactants, such as sodium dodecylbenzene sulfonate (SDBS), sodium dodecylsulfonate (SDS) and sodium lauryl sulfate (SLS), occurs at the water/tetrachloromethane interface, giving rise to greatly enhanced TIR-RLS signals characterized at 375.0 nm. The enhanced TIR-RLS intensity at 375.0 nm is proportional to the concentration of thiamine in the range 0.12-850 ng ml(-1) and its limit of detection (3sigma) is 120 pg ml(-1). The results of analysis of artificial samples are in agreement with the specified values, and those ones for Vitamin B-1 tablets and injection solutions are identical with those obtained according to the method of the Chinese Pharmacopoeia. (C) 2002 Elsevier Science B.V All rights reserved.

引用

页码：151 / 161

页数：11

共 33 条

[1] COLORIMETRIC DETERMINATION OF THIAMINE IN PHARMACEUTICAL PRODUCTS [J].

BANDELIN, FJ ;

TUSCHHOFF, JV .

ANALYTICAL CHEMISTRY, 1953, 25 (08) :1198-1200

[2]

Chen XM, 1999, CHINESE J ANAL CHEM, V27, P1435

[3] Direct measurement of static and dynamic forces between a colloidal particle and a flat surface using a single-beam gradient optical trap and evanescent wave light scattering [J].

Clapp, AR ;

Dickinson, RB .

LANGMUIR, 2001, 17 (07) :2182-2191

[4]

DIEBEL RH, 1957, J BACTERIOL, V74, P818

[5] Total internal reflected resonance light scattering determination of chlortetracycline in body fluid with the complex cation of chlortetracycline-europium-trioctyl phosphine oxide at the water/tetrachloromethane interface [J].

Feng, P ;

Shu, WQ ;

Huang, CZ ;

Li, YF .

ANALYTICAL CHEMISTRY, 2001, 73 (17) :4307-4312

[6] DETERMINATION OF THIAMINE BY CONTINUOUS-FLOW CHEMILUMINESCENCE MEASUREMENT [J].

GREKAS, N ;

CALOKERINOS, AC .

TALANTA, 1990, 37 (11) :1043-1048

[7] Determination of nanograms of nucleic acids by their enhancement effect on the resonance light scattering of the cobalt(II)/4-[(5-chloro-2-pyridyl)azo]-1,3-diaminobenzene complex [J].

Huang, CZ ;

Li, KA ;

Tong, SY .

ANALYTICAL CHEMISTRY, 1997, 69 (03) :514-520

[8]

HUANG CZ, 1996, ANAL CHEM, V68, P2059

[9]

Jansen BCP, 1936, RECL TRAV CHIM PAY-B, V55, P1046

[10] FLUOROMETRIC-DETERMINATION OF THIAMINE WITH COBALT(II) [J].

JIE, NQ ;

YANG, JH ;

ZHAN, ZG .

ANALYTICAL LETTERS, 1993, 26 (10) :2283-2289

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