食品科学 ›› 2005, Vol. 26 ›› Issue (10): 176-178.

• 分析检测 • 上一篇    下一篇

萃取-分光光度法快速测定酱油中硼酸含量

 黄华军, 余裕娟, 奚星林, 谢均宪   

  1. 广州出入境检验检疫局食品实验室
  • 出版日期:2005-10-15 发布日期:2011-09-25

Extract-Spectrophotometry Rapid Determination of Boric Acid in Sauce

 HUANG  Hua-Jun, YU  Yu-Juan, XI  Xing-Lin, XIE  Jun-Xian   

  1. Food Inspection Laboratory of Guangzhou Entry-Exit Inspection and Quarantine Bureau
  • Online:2005-10-15 Published:2011-09-25

摘要: 建立了一个快速检测酱油中硼酸含量的分光光度法,酱油中的硼酸直接用乙基己二醇-氯仿溶液萃取后,在浓硫酸酸性条件下,与姜黄反应生成玫瑰蓝染料。在5~500μg/ml范围内吸光度与硼酸浓度呈线性关系,相关系数为0.9997。重现性良好。

关键词: 萃取, 分光光度法, 硼酸, 酱油, 姜黄

Abstract: A spectrophotometry method is established to rapidly determine boric acid in sauce. boric acid in sauce is extracted with 2-ethyl-1,3-hexanediol-chloroform. Boric react with curcuma forming rose-bule dye.Beel’ law is obeyed in the range of 5~ 500μg/ml with r =0.9997.The repeatability is satisfying.

Key words: extract, spectrophotometry, boric acid, sauce, curcuma