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产品名称:
273铬离子检测管 Cr6+
产品型号:
273铬离子检测管 Cr6+
产品厂商:
上海豫东电子科技有限公司
产品文档:
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简单介绍
Performance Measuring Range 0.5 to 50 mg/L Sampling Time 2 minutes Detecting Limit 0.4 mg/L Colour Change White → Yellow Reaction Principle Cr6+ + Pb(CH3COO)2 → PbCrO4 Shelf Life 3 Years Corrections for temperature & humidity Water temperature correction is necessary Store the tubes at cool and dark place. Possible coexisting substances and their interferences (NOTE)
273铬离子检测管 Cr6+
的详细介绍
Chromium (VI)
Ion
NO.273
Cr6+
|
Performance
|
|
Measuring Range
|
0.5 to 50 mg/L
|
|
Sampling Time
|
2 minutes
|
|
Detecting Limit
|
0.4 mg/L
|
|
Colour Change
|
White → Yellow
|
|
Reaction Principle
|
Cr6+ + Pb(CH3COO)2 →
PbCrO4
|
|
Shelf Life
|
3 Years
|
|
Corrections for temperature &
humidity
|
Water temperature correction is
necessary
|
|
Store the tubes at cool and dark
place.
|
|
Possible coexisting substances and their
interferences (NOTE)
|
|
Substance
|
Concentration
|
Interference
|
Change colour by itself
to
|
|
|
20 mg/L
|
|
No
|
|
CH3COO-
|
20 mg/L
|
|
|
|
NO3-
|
30 mg/L
|
+
|
No
|
|
S2-
|
0.5 mg/L
|
|
Brown (0.5 mg/L )
|
|
SO42-
|
10 mg/L
|
+
|
No
|
|
PO43-
|
5 mg/L
|
|
No |