| 对甲苯磺酸三正丁铵色谱固定相对酱油中山梨酸和苯甲酸测定 |
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| 引用本文： | 李新华,寇登民.对甲苯磺酸三正丁铵色谱固定相对酱油中山梨酸和苯甲酸测定[J].渤海大学学报(自然科学版),2014(3):275-278. |
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| 作者姓名： | 李新华 寇登民 |
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| 作者单位： | 1. 渤海大学 化学化工与食品安全学院,辽宁 锦州,121013
2. 南开大学 化学系,天津,300071 |
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| 基金项目： | 辽宁省教育厅科学研究计划资助项目(No2021401159)． |
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| 摘 要： | 采用静态法涂柱以对甲苯磺酸三正丁铵做为固定相制备了石英毛细管气相色谱柱(柱尺寸35 m×0.53 mmi.d,液膜厚度为1.0μm,固定液浓度为9.5%,W/V),并对其柱性能进行了考察.实验表明,此种色谱固定相极性较强,对于酱油中的山梨酸和苯甲酸极性具有较好的分离效果,精密度试验,得到的相对标准偏差在0.53%~2.5%之间,线性范围10×10-3g.L-1~250×10-3g.L-1.检出限为4.2×10-3g.L-1,方法回收率为85%~96.1%.
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| 关 键 词： | 毛细管气相色谱 对甲苯磺酸三正丁铵固定相 山梨酸 苯甲酸 |
Determination of sorbic acid and benzoic acid in soya sauce using 4 -toulensulfonate of trimethylammonium as stationary phase by GC |
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| LI Xin-hua,KOU Deng-min.Determination of sorbic acid and benzoic acid in soya sauce using 4 -toulensulfonate of trimethylammonium as stationary phase by GC[J].Journal of Bohai University:Natural Science Edition,2014(3):275-278. |
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| Authors: | LI Xin-hua KOU Deng-min |
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| Institution: | LI Xin - hua , KOU Deng - min(1. College of Chemistry, Chemical Engineering and Food Safety, Bohai Vniversity, Jinzhou 121013, China; 2. Department of Chemistry,Nankai University,Tianjin 300071, China) |
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| Abstract: | A silica capillary column （30 m x0.53 mmi. d, 1.0 μm, 9.5% W/V） using 4 - toluensulfonate of trimethylammonium as stationary phase was prepared by the method of static coating. The experiment showed that this type of column had good colunmn characteristics and it has good capability in Separating sorbic acid and benzoic acid in soya sauce . The relative standard deviations were 0.53% -2.5% and the linear rangeands were 10 x 10 -3g. L-1 250 x 10 -3g. L-1 and the limit of detection was 4.2 x lO-3g. L-1 and the recovers of this method were 85% -96.1%. |
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| Keywords: | gas chromatography 4-toluensulfonate of trimethylammonium sorbic acid benzoic acid |
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