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５－Ｂｒ－ＰＡＤＡＰ光度法测定铜合金中钒本文利用２－（５－溴－２－吡啶偶氮）－５－二乙氨基酚（简称５－Ｂｒ－ＰＡＤＡＰ）测定铜合金中的钒，因大量铜有严重干扰，故以硫脲作掩蔽剂并改用盐酸和过氧化氢溶样，氯乙酸控制酸度，这样用于铜合金中获得满意的效果。分...
5-Br-PADAP Spectrophotometric Determination of Vanadium in Copper Alloy Due to the determination of vanadium in copper alloy by 2- (5-bromo-2-pyridylazo) -5-diethylaminophenol A large number of copper have serious interference, so thiourea as a masking agent and use hydrochloric acid and hydrogen peroxide dissolved samples, the acidity of chloroacetic acid control, so that for the copper alloy to obtain satisfactory results. Minute...