期刊论文

中文

化学试剂

0258-3283

2003

25

6

353-354,356

10.3969/j.issn.0258-3283.2003.06.012

湖南省自然科学基金资助课题（01JJY2078）； 湖南省教育厅重点资助课题（01A029）；

本校为第一机构

介绍了在NaOH介质中,阳离子表面活性剂溴化十四烷基吡啶(TPB)存在下,1-(5-萘酚-7-磺酸)-3-[4-(苯基偶氮)苯基]-三氮烯(NASAPAPT)与阴离子表面活性剂(AS)的显色反应.该显色反应显色快,稳定,显色配合物最大吸收位于594nm,显色剂与阴离子表面活性剂配合比为1:3.研究的方法用于实样分析.

This paper reports the new color reaction of 1-(5-naphthol-7-sulfonic acid)-3-( 4-phenylazophenyl) tri-azene ( NASAPAPT) with tetradecylpyridinium bromide (TPB) and anionic surfactant (AS) in NaOH basic medium. The color reaction was fast and stable. The maximum absorption wavelength of the complex was 594nm. The molar composition of the complex was found to be NASA-PAPT:AS=1:3.The method has been applied to a...