微量硫化物的测定国内外常采用亚甲基蓝法、分子荧光法、电极法、原子吸收分光光度法和冷原子荧光法等。本文根据汞(Ⅱ)可与四(4-三甲铵苯基)卟啉(简称TAPP)在室温下产生灵敏的显色反应(ε=2.85×10~5),并允许大量的常见阴离子存在的特性,当S~(2-)存在时则极易抑制与其相当量的Hg(Ⅱ)—TAPP配合物的生 Determination of trace sulfide commonly used at home and abroad methylene blue method, molecular fluorescence method, electrode method, atomic absorption spectrophotometry and cold atomic fluorescence spectrometry. In this paper, a sensitive chromogenic reaction (ε = 2.85 × 10 ~ 5) can be produced at room temperature with mercury (Ⅱ) and tetrakis (4-trimethylammonium) porphyrin When S ~ (2-) is present, it is easy to inhibit the growth of Hg (Ⅱ) -TAPP complex with its equivalent amount