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本文提出了一个测定Cl~-的极谱新体系。在0.1％ HCOOH-1×10~(-3)％百里香酚蓝-0.5％ NH_4NO_3-0.2％ HF-0.2％HNO_3-2.5×10~(-3)％ TritonX-100溶液中,用配装新功能增进器的JP-1A型示波极谱仪测定,Cl~-于+0.05V(对银汞齐电极)附近可产生一个较为灵敏的二次导数阳极波。浓度在0.05～200μg/10.0ml范围可作也量测定。检出限为0.01μg/10.0ml。还讨论了电极反应机理。
This paper presents a new polarographic system for the determination of Cl ~ -. In a solution of 0.1% HCOOH-1 × 10 -3% Thymol Blue-0.5% NH 4 NO 3 -0.2% HF-0.2% HNO 3 -2.5 × 10 -3% Triton X-100, The JP-1A oscillopolarography of the extractor produces a more sensitive second-derivative anodic wave near Cl ~ - at + 0.05V (for the silver amalgam electrode). Concentration in the range of 0.05 ~ 200μg / 10.0ml can also be measured. The detection limit was 0.01μg / 10.0ml. The electrode reaction mechanism is also discussed.