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车间空气中锰含量测定方法的改进山东省烟台港务局卫生防疫站（２６４０００）李安平磷酸－高碘酸钾比色法测定车间空气中的锰是卫生防疫工作规范的标准方法［１］。此法［２］加入固体高碘酸钾，经加热煮沸显色，繁锁、费时。我们改用高碘酸钾溶液代替固体高碘酸钾，并且...
Improvement of the determination of manganese content in the air of the workshop The hygiene and epidemic prevention station of Yantai Port Authority of Shandong Province (264000) Li Anping Phosphoric acid-potassium periodate colorimetric method for the determination of manganese in the air of the workshop is the standard method of health and epidemic prevention [1]. This method [2] added solid potassium periodate, heated boiling color, complicated, time-consuming. We use potassium periodate instead of solid potassium periodate, and ...