PAN－S光度法测定水和河泥中微量锰

SPECTROPHOTOMETRIC DETERMINATION OF MICROAMOUNTS MANGANESE IN WATER AND FLUVIAL DEPOSIT WITH PAN-S

本文研究了ＰＡＮ－Ｓ与锰的显色反应。配合物的最大吸收峰位于５３８ｎｍ波长处，表观摩尔吸光系数为２．９×１０￣４Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），锰量在０─１．６μｇ／ｍｌ范围内符合比尔定律，方法用于水和河泥中微量锰的测定，结果良好。

The colour reaction of manganese with PAN-S has been studied. The maximum ab-sorbance of the complex is at 538 nm,its apparent molar absorptivity is 2.9×10￣1 L·mol￣(-1)·cm￣(-1).Beer's law is obeyed over the range of 0─1.6 μgMn￣(2+)/ml. This method has been used to determine manganese in water and fluvial deposit,and the a tisfying results are obtained