痕量镉的极谱测定,近年来有用荒氨酸衍生物的金属络合物的萃取-极谱法、汞膜电极阳极溶出伏安法、以及在六次甲基四胺-硫氰酸盐、六次甲基四胺-碘化钾或溴化钾、四乙基碘化铵、四丁基溴化铵-碘化钾和四(4-三甲胺苯基)卟啉等底液中测定镉吸附波法。测定下限达0.01—0.02微克/毫升镉。本文研究了镉在溴化钾-乳酸-溴化十六烷基三甲 Polarographic determination of trace amounts of cadmium, the extraction-polarography of metal complexes useful for Ara-derivatives in recent years, the anodic stripping voltammetry of mercury film electrodes, and the use of hexamethylenetetramine-thiocyanate , Hexamethylenetetramine - potassium iodide or potassium bromide, tetraethylammonium iodide, tetrabutylammonium bromide - potassium iodide and tetrakis (4 - trimethylaminophenyl) porphyrin and other bottom liquid Determination of cadmium adsorption wave method . The lower limit of determination was 0.01-0.02 μg / ml cadmium. This article studies the effect of cadmium on potassium bromide - lactic acid - cetyltrimethylammonium bromide