研究痕量镉的光度分析法在环境卫生、食品卫生、劳动卫生与职业病诊断中尤为重要．近些年来，表面活性剂胶囊增溶、增敏光度分析得到了蓬勃发展，许多高灵敏体系相继问世，较萃取光度法的灵敏度和操作规程有很大改观。同时，由于配合物结构理论、量子化学、计算技术和新的有机 Photometric analysis of trace cadmium is particularly important in the diagnosis of environmental health, food hygiene, occupational health and occupational diseases. In recent years, surfactant solubilization, sensitizing photometric analysis has been booming, many highly sensitive systems have come out, compared with the sensitivity and operating procedures of extraction spectrophotometry has greatly improved. At the same time, due to the complex structure theory, quantum chemistry, computational techniques and new organic