共 2 条
1-(2-羟基-5-硝基苯基)-重氮氨基偶氮苯与汞的显色反应
被引:40
作者:
张春牛
杨明华
郑云法
王智敏
机构:
[1] 浙江丽水师范专科学校化学系
[2] 浙江丽水师范专科学校化学系 浙江丽水
[3] 浙江丽水
来源:
关键词:
1-(2-羟基-5-硝基苯基)-重氮氨基偶氮苯;
汞;
分光光度法。;
D O I:
暂无
中图分类号:
O657.32 [可见和紫外分光光度法];
学科分类号:
摘要:
In the presence of Triton X 100,the color reaction of Mercury(Ⅱ)with 2 hydroxy 5 nitrophenyldiazoaminoazobenene(HNPDAAB)was studied.Mercury(Ⅱ)reacts with HNPDAAB and forms a 1∶1 red complex at pH=95-110 buffer solution of Na2B4O7 NaOH.The molar absorptivity is 256×105L·mol-1·cm-1.Beer's law is obeyed in the concentration range of 0~12μg/25mL for Mercury(Ⅱ).The results are in agreement with those determined by the conventional method.This new method was used to determine trace mercury in wastewater.
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页码:405 / 406
页数:2
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