MEN Hong~1, LI Xiao-ying~1, WU Guang-jian~1, et al. Study on all solid state mercury ion-selective electrode[J]. 2007, (1): 39-40+44. DOI: 10.13873/j.1000-97872007.01.013.
全固态汞离子选择电极的研究
摘要
汞是剧毒物质
易对水环境造成严重的污染
研发适合现场在线检测汞的技术非常必要。通过2个阶段的固相反应合成了一种全固态离子选择电极
电极成分为AgI
Ag2S和HgI
该电极对二价汞离子具有选择性
线性范围为10-110-5mol/L
斜率为29.3 mV/decade
pH适用范围为02
检测下限为3.31×10-6mol/L
响应时间小于3m in。
Abstract
Mercury is a kind of extremely toxic substance which pollutes water seriously.So it is necessary to research the on-site measurement technique for mercury on-line.A kind of all solid state ion-selective electrode(ISE) is synthesized by two-step solid phase reaction
chemical component of the ISE which is sensitive about divalent mercury ion are AgI
Ag
2
S and HgI.The linearity range of the mercury ISE is 10
-1
1
0
-5
mol/L with the rate of slope 29.3 mV/decade.Applicability of pH is 0