| 二乙胺滴定法测定辣根及芥末制品中异硫氰酸酯含量的研究 |
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| 引用本文： | 张清峰,姜子涛,董峰光,李荣.二乙胺滴定法测定辣根及芥末制品中异硫氰酸酯含量的研究[J].中国调味品,2005(2):48-51. |
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| 作者姓名： | 张清峰 姜子涛 董峰光 李荣 |
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| 作者单位： | 天津商学院,食品科学与工程系,天津,300134 |
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| 基金项目： | 天津市自然科学基金(043604511)
天津市高校科技发展基金(20030905)资助课题 |
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| 摘 要： | 本文报道了测定辣根及芥末制品中异硫氰酸酯含量的一种新方法——二乙胺滴定法。异硫氰酸酯与二乙胺在丙酮溶液中发生均相反应，生成相应的硫脲，过量的二乙胺用标准盐酸滴定，从而计算出异硫氰酸酯的含量。通过与哌啶法、吗啉法的对比实验，表明该法准确可靠、简便易行。
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| 关 键 词： | 异硫氰酸酯 二乙胺 辣根 芥末 |
| 文章编号： | 1000-9973(2005)02-0048-04 |
| 修稿时间： | 2004年12月10 |
Titrimetric method for quantitative determination of the isothiocyanates with diethy amine |
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| ZHANG Qing-feng,JIANG Zi-tao,DONG Feng-guang,LI Rong.Titrimetric method for quantitative determination of the isothiocyanates with diethy amine[J].China Condiment,2005(2):48-51. |
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| Authors: | ZHANG Qing-feng JIANG Zi-tao DONG Feng-guang LI Rong |
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| Abstract: | In this paper, a new method for quantitative determination of the isothiocyanates in horseradish, mustard and the related products has been reported. The isothiocyanates reacted with diethyl amine in acetone media to form the corres ponding monosubstitited thioureas. The excess of diethyl amine is back titrated using a standard hydrochloric acid solution and the amount of the isothiocyanates is calculated from the titration values. Compared with those of piperidine and mor-pholine methods,the results indicated that the proposed method is accurate and convenient. |
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| Keywords: | isothiocyanates diethyl amine horseradish mustard |
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