微量甲胺磷的示波极谱测定
Determination of Micro MAP by Oscillopolarography
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摘要: 研究甲胺磷(MAP)的水解等反应的生成物亚硝酸与8-羟基喹啉合成的偶氮化合物的极谱行为.该化合物在-0.54(VS.SCE)处有一灵敏的极谱吸附波,波高与MAP含量在0.02~1.5μg/ml范围内呈良好线性关系.方法简便快速,选择性好.用于水和空气样品中MAP的测定,结果满意.Abstract: The polarographic behaviour of an azo-compound produced by the reaction of Methy amine phosphorus (MAP)-with 8-hy droxyquinoline(Oxin),in the ammonia medium has been studied.The yellow orangeazo compound grives a sensitive adsorption ware at the potential of -0.54V(VS.SCE) the height is directly proportional to concentration of MAP Over the range of 0.02~1.5μg/ml.The method is simple and selective whe applicd to water and air sampoles it gives almost the same results those the colorimetry.