废水中的C-经H-732苯乙烯型强酸性阳离子树脂交换分离后，浓缩。用电感耦合等离子体质谱法（ICP_MS）检测，该法的线性范围为0-100ng·mL^-1,线性相关系数RZ=0．9997、检出限为0．02ng·mL^-1（38）、加标回收率为88％～105％，相对标准偏差≤5％。%The Cr6＋ content in wastewater was detected by ICP-MS after it was separated by H-732 type strong acidic cationic exchange resin and concentrated. The results showed that the linear range was 0 - 100 ng·mL^-1, the linear correlation coefficient R2 = 0.9997, the detection limit 0.02 ng·mL^-1 （3δ）, the average recovery was 88%-105%, and relative standard deviation ≤5%.
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