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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:

2004年02期

Page:

5-7

Research Field:

Publishing date:

Info

Title:

The Direct Determination of Benzoic Acid in Beverage by Gas Chromatography on a Sol-Gel Coated PDMS capillary Column

Author(s):

WANG Dongxin

School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, China

Keywords:

sol-gel;  benzoic acid;  gas chromatography

PACS:

O657.71

DOI:

-

Abstract:

Sol- gel column is a new-type of chromatographic column with high temperatures tolerance, ex cellent separation and repeatability. The technological process for the developing of the column is relatively simple. The direct determination of benzoic acid in beverage can be carried out on the so-l gel capillary column for gas chromatography without derivatization, and so the error in derivatization can be avoided. The peak of the bensoic acid on this column is sharp and symmetric without tailing. Diethyl phthalate is used as internal standard and the amout of benzoic acid in beverage is determined. The analysis results show the average recovery is 99.7% and the relative standard deviation is 1.2%.

References:

[ 1] 中国食品添加剂生产应用工业协会. 食品添加剂手册 [M] . 北京: 中国轻工业出版社, 1996. 194, 355.
[ 2] Blau K, King G S. Handbook of Derivatives for Chromatography[ M] . London: Heyden & Son Ltd, 1977. 39 -103.
[ 3] 王东新, Malik A. 溶胶凝胶法制备用于分离极性有机化合物的毛细管气相色谱柱[ J] . 色谱, 2002, 20( 3) : 279- 282.
[ 4] 王东新, Malik A. 聚二甲基硅氧烷溶胶凝胶气相色谱毛细管柱与传统毛细管柱的柱容量比较[ J] . 色谱, 2002, 20( 6) : 534- 536.
[ 5] 王东新, Malik A. 溶胶凝胶毛细管气相色谱柱热稳定性的考察[ J] . 分析化学, 2003, 31( 4) : 467- 471.
[ 6] Wang D X, Chong S L, Malik A. So-l Gel Column Technology for Single- Step Deactivation, Coatong, and Stationary- Phase Immobilization in High-Resolution Capillary Gas Chromatography[ J] . Anal Chem, 1997, 69( 22) : 4566- 4576.

Memo

Memo:

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Last Update: 2013-04-29