摘要
采用膜池预富集空气中的汞,然后用所制备的BMPT-碳糊伏安传感器测定空气中的汞。在含6.0×10^(-6)mol/L BMPT的pH9.5缓冲溶液中,Hg(Ⅱ)在BMPT-碳糊伏安传感器上于-1.20V左右产生一灵敏的阴极溶出伏安峰,利用此峰测定汞(Ⅱ)的检测下限为1.0×10^(-8)mol/L。
Mercury in air samples was captured and enriched in a membrane cell with 25% HNO3 solution,and then determined by cathodic stripping voltammetry on a BMPT-carbon paste electrode. In a pH9. 5 buffer solution containing 6. 0×10-6mol/L BMPT,Hg(Ⅱ) gives a sensitive cathodic stripping voltammetric peak at -1. 20V on the electrode.
出处
《化学传感器》
CAS
2000年第2期25-28,共4页
Chemical Sensors
