铬酸盐测试

chromate

100

0.005-0.10 mg/L (Cr)
0.011-0.22 mg/L (CrO₄^2-)

for use with MQUANT^®

colorimetric

15-25℃

方法：比色法，带色卡和长试管比较器 0.005 - 0.01 - 0.02 - 0.03 - 0.04 - 0.05 - 0.06 - 0.08 - 0.10 mg/l Cr 0.011 - 0.022 - 0.045 - 0.07 - 0.09 - 0.11 - 0.13 - 0.18 - 0.22 mg/l CrO₄²⁻ MQuant^®
该测试测量存在于铬酸盐样品中的铬或废水、过滤水、地下水和地表水、工业用水和饮用水中的重铬酸盐。
The MQuant^® Chromate test (formally MColortest^®) measures chromium(VI) present in the sample as chromate or dichromate ions in wastewater and percolating water, groundwater and surface water, industrial water and drinking water.

Method
In weakly phosphoric solution chromium(VI) ions react with diphenylcarbazide to form chromium(III) and diphenylcarbazone, which form a red-violet complex. The chromate concentration is measured semiquantitatively by visual comparison of the color of the measurement solution with the color fields of a color card. The unique brilliance of the print and their fine color graduation allow precise analyses, even at the lower end of the concentration range. Due to the long test tubes a sensitive measurement range can be covered. Using the refill pack 1.18456 containing all the reagents, the original test kit can be used for a very long time, making it a particularly economical and ecological system.

MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany