簡單介紹
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鉻離子檢測管 Cr6+的詳細(xì)介紹
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
Cl- 20 mg/L + No
CH3COO- 20 mg/L + No
NO3- 30 mg/L + No
S2- 0.5 mg/L Unclear Brown (0.5 mg/L )
SO42- 10 mg/L + No
PO43- 5 mg/L + No
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