[1]刘伟,韩润平,刘赞,等.4-(2-噻唑偶氮)-6-甲酰基-间苯二酚光度法测定铅[J].郑州大学学报(工学版),2005,26(03):12-14.[doi:10.3969/j.issn.1671-6833.2005.03.004]
　LIU Wei,HAN Runping,LIU Zan,et al.4-(2-Thiazole azo)-6-formyl-resorcinol photometric determination of lead[J].Journal of Zhengzhou University (Engineering Science),2005,26(03):12-14.[doi:10.3969/j.issn.1671-6833.2005.03.004]

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4-(2-噻唑偶氮)-6-甲酰基-间苯二酚光度法测定铅()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

26卷

期数:

2005年03期

页码:

12-14

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

4-(2-Thiazole azo)-6-formyl-resorcinol photometric determination of lead

作者:

刘伟; 韩润平; 刘赞; 等.

郑州大学生物工程系,河南,郑州,450052, 郑州大学化学系,河南,郑州,450052, 河南省环境监测中心站,河南,郑州,450004

Author(s):

LIU Wei; HAN Runping; LIU Zan; etc

关键词:

4-(2-噻唑偶氮)-6-甲酰基-间苯二酚;  铅;  分光光度

Keywords:

4-(2-Thiazoleazo)-6-formyl-resorcinol;  Lead;  Spectrophotometry

DOI:

10.3969/j.issn.1671-6833.2005.03.004

文献标志码:

A

摘要:

研究了新显色剂4-(2-噻唑偶氮)-6-甲酰基-间苯二酚(TARF)与铅的显色反应的条件.在pH值为7.5～8.0的硼砂-盐酸缓冲溶液介质中,TARF与Pb(Ⅱ)形成稳定的摩尔比为1:1的紫色配合物,最大吸收波长在565 nm处,表观摩尔吸光系数为1.62×104L/(mol·cm),Pb(Ⅱ)在0～3.2 μg/mL范围内遵守比耳定律.在一定掩蔽剂的作用下,试剂可用于测定环境水质标准样品中铅的测定.

Abstract:

The conditions for the chromogenic reaction of the new chromogen 4-(2-thiazoleazo)-6-formyl-resorcinol (TARF) with lead were studied. In the borax-hydrochloric acid buffer solution medium with pH 7.5~8.0, TARF and Pb(II.) formed a stable violet complex with a molar ratio of 1:1, the maximum absorption wavelength was 565 nm, the apparent molar absorbance coefficient was 1.62×104L/(mol·cm), and Pb(II.) complied with Bill’s law in the range of 0~3.2 μg/mL. Under the action of a certain masking agent, the reagent can be used to determine the determination of lead in the standard sample of environmental water quality.

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