高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (6): 879.

• 研究简报 • 上一篇    下一篇

以锌试剂显色法测定蛋白质的研究

迟燕华, 李娜, 庄稼, 李克安, 童沈阳   

  1. 北京大学化学与分子工程学院, 北京, 100871
  • 收稿日期:1997-07-24 出版日期:1998-06-24 发布日期:1998-06-24
  • 通讯作者: 李克安
  • 作者简介:迟燕华,女,41岁,副教授,西南工学院,621002.
  • 基金资助:

    国家自然科学基金

The Spectrophotometric Determination of Proteins Using Zincon

CHI Yan-Hua, LI Na, ZHUANG Jia, LI Ke-An, TONG Sheng-Yang   

  1. Department of Chemistry, Peking University, Beijing, 100871
  • Received:1997-07-24 Online:1998-06-24 Published:1998-06-24

关键词: 锌试剂, 蛋白质, 分光光度法

Abstract: When BSA was added into zincon solution at pH 4.1, the purple colour was observed, which indicates the formation of zincon-BSA complex. The maximum absorption of complex was 564 nm and 594 nm with the apparent molar absorptivity of 1.5×106 L·mol-1 · cm-1 . The linear range of standard curve for BSAis 0~10 μg/mL, and the detection limit is 0.5 μg/mL. The basic reaction conditions were investigated. This proposed method was simple, sensitive, and reproducible. The analytical results of human serum albumin using this method is very satisfactory .

Key words: Protein, Zincon, Spectrophotometry

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