掩蔽剂硫酸汞用量对水样中CODCr测定的影响

摘要

研究了高氯离子样品CODCr的测定，指出了氯离子与硫酸汞的质量比为1∶50时，掩蔽氯离子能达到较好的效果。%The determination of CODCr in the samples with high chlorine concentration, showed that the best mass ratio of chlorine ion to HgSO4 is 1∶50 , and the masking of chlorine ion can achieve an idea effect.