Hanna HI93749-01 定制专用低量程六价铬【Cr】LR试剂（100次测试）
不含增值税
1,839,333 VND
含增值税
1,986,480 VND
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Package packet
Quantity 100
Method Adaptation of the ASTM Manual of Water and Environmental
Technology, D1687-92, diphenylcarbohydrazide method. The reaction between chromium and the reagent causes a purple tint in the sample.
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