摘要
本文报道一种低输出阻抗复合铅离子选择电极。其线性范围为5×10^(-7)～10^(-1)mol/L,pH范围3.0～6.2,响应时间小于5s、灵敏度为28.0mV/PC_(Pb^(2+)),寿命不少于一年,输出阻抗≤100Ω。用该电极测量了板兰根、小麦幼芽、生物培养液、工业废水、排放水、蓄电池厂车间空气中的铅含量,获得满意结果。
A new combination lead ion-selective electrode of low output resistance is reported. The load sensor shows Nernstian response in the range of 1×10^(-1)～5×10^(-7) mol/L for Pb^(2+) at pH 3.0～6.2 with a slop of 28.0 mV/decade. Electrode life was past one year, output resistance was≤100Ω and response time was 5s. The lead sensor was applied to the determination of lead in hantange, biological culture, wheat seedlings, waste water and air in factory.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第3期370-374,共5页
Chinese Journal of Analytical Chemistry
关键词
铅
测定
电极
离子选择电极
low output resistance electrode, Lead ion-seletive electrod.
