Determination of dextrin based on its self-aggregation by resonance light scattering technique

被引：27

作者：

Chen, Zhanguang ^{[1
]}

Zhu, Li ^{[1
]}

Song, Tianhe ^{[1
]}

Huang, Jinhai ^{[1
]}

Han, Yali ^{[1
]}

机构：

[1] Shantou Univ, Dept Chem, Shantou 515063, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2009年 / 635卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Self-aggregation; Free-probe; Resonance light scattering (RLS); Dextrin; SODIUM LAUROYL GLUTAMATE; RAYLEIGH-SCATTERING; NANOGRAM LEVELS; ABSORPTION-BANDS; NUCLEIC-ACIDS; SPECTROSCOPY; ASSAY; DNA; ASSOCIATION; PROTEINS;

D O I：

10.1016/j.aca.2009.01.002

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel free-probe assay of dextrin was established based on the resonance light scattering (RLS) enhancement in aqueous solution due to the self-aggregation of dextrin. The RLS intensity was well proportional to the concentration of dextrin over the wide range 0.2-14 mu g mL(-1) and a detection limit 0.02 mu g mL(-1) was obtained in the optimum conditions. The effect factors such as pH. buffer medium, holding time ionic, strength and temperature were studied in detail. Little or no interference was presented in the detection when adding coexisting substances including various metal ions and some saccharine in the solution. The assay proposed owns the advantages of easy operation, rapidity, sensitivity and practicability. Three synthetic samples and three kinds of medicine samples were analyzed with satisfactory results. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：202 / 206

页数：5

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