Received date: 2004-10-22
Online published: 2010-10-01
The 1 - azobenzene - 3 - (5 - bromo - 2 - pyridyl) - triazen e (ABBPDT) with mercury and its application have been discussed. In the buffer solution of Na2B47 - NaOH (pH11.5)and with the existence of surface active a gent of OP,ABBPDT reacts with mercury to form a red complex with n(Hg2+): n (ABBPDT)=1 ∶ 2. The absorp- tion maximum of the complex lies at 520 nm with an apparent molar absorptivity o f 1.81 × 105 L/(mol·cm). The Beer′s law is well obeyed in the range of 0 ~ 480 μg of mercury in 1 L. The method has been applied to the direct determinat ion of mercury in wastewater with satisfactory results.
Zhang Chunniu , Zheng Yunfa , Gu Yongbing . Chromogenic reaction of ABBPDT with mercury and its application[J]. Industrial Water Treatment, 2005 , 25(6) : 50 -51 . DOI: 10.11894/1005-829x.2005.25(6).50
[1] 郭启华,周勇义,邹洪,等.三氮烯类试剂在光度分析中的应用进展[J].冶金分析,2003,23(1):20-26
[2] 张春牛,杨明华,郑云法.1-(2-羟基-5-硝基苯基)-重氮氨基偶氮苯与汞的显色反应[J].化学研究与应用,2003,15(3):405-406
[3] 汪朝存,哈成勇.2-吡啶重氮氨基偶氮苯与镉(Ⅱ)的显色反应及其应用[J].分析化学,1998,26(10):1 260-1 263
[4] 杨明华,唐国强,金传明,等.新试剂乙氧基苯并噻唑重氮氨基偶氮苯的合成及与汞的显色反应[J].分析试验室,2002,21(2):85-87
[5] 张春牛,郑云法,王智敏.6-硝基-2-苯并噻唑重氮氨基偶氮苯的合成及与镍的显色反应[J].冶金分析,2004,24(2):16-18
/
| 〈 |
|
〉 |
津公网安备 12010602120337号