| 导数-比光谱法同时测定酱油及食醋中的山梨酸和苯甲酸 |
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| 引用本文： | 吴鑫德,方正法,刘劭钢.导数-比光谱法同时测定酱油及食醋中的山梨酸和苯甲酸[J].湖南城市学院学报,2001,18(3):69-71. |
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| 作者姓名： | 吴鑫德 方正法 刘劭钢 |
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| 作者单位： | 1. 湖南师范大学化学化工学院, 湖南长沙 410081
2. 岳阳市卫生防疫站, 湖南岳阳 414000 |
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| 摘 要： | 介绍用导数-比光谱法同时测定酱油及食醋中的山梨酸和苯甲酸.样品用乙酸乙酯作萃取剂；用Na
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| 关 键 词： | 导数-比光谱法 同时测定 山梨酸 苯甲酸 |
| 文章编号： | 1001-876X(2001)03-0069-03 |
| 修稿时间： | 2001年2月18日 |
Simultaneous Determination
of Sorbic Acid and Benzoic Acid in Soy and Vinegar by Derivative Ratio Spectrum Methods |
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| WU Xin-de,FANG zheng-fa,LIU Shao-gang.Simultaneous Determination
of Sorbic Acid and Benzoic Acid in Soy and Vinegar by Derivative Ratio Spectrum Methods[J].Journal of Hunan City Univeristy,2001,18(3):69-71. |
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| Authors: | WU Xin-de FANG zheng-fa LIU Shao-gang |
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| Institution: | WU Xin de 1,FANG zheng fa 1,LIU Shao gang 2 |
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| Abstract: | This article introduces the modified method for simultaneous determination of sorbic acid and benzoic acid in soy and vinegar by Derivative Ratio Spetrum. Samples were extracted by acetic ether and stripped by Na2HPO4 Derivative Ratio Spectrum calculation was undertaken after five absorption values were measured at different wavelengths. The content of sorbic acid and benzoic acid in soy and vinegar were analysed. The recovery percent was between 96.25% ～102.25%. This method is simple and accurate compared with Kalman filtering and Multi-Wavelength Linear Regression UV-spectrophotometry. it can be used for determination of Sorbic acid and Benzoic acid in food. |
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| Keywords: | Derivative ratio spectrum Multicopmponent analysis Sorbic acid Benzoic acid |
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