|
|
| Performance |
Measuring
Range
|
1 to 20 mg/l |
Sampling Hours
|
5 minutes |
Detecting Limit
|
0.5 mg/l |
Color Change
|
White --->
Orange |
| Reaction
Principle |
Cu2++ Reduction
Agent ---> Cu+ + Bathocuprim
Cu2+ ---> Complex compound |
| Shelf
Life |
2 Years |
| Corrections
for temperature & humidity |
Unnecessary |
| Store the
tubes at cool and dark place. |
| Possible
coexisting substances and their interferences |
Substance
|
Concentration
|
Interference |
Change
color by itself |
Zn
|
5 mg/l or higher
|
Plus error
|
No stain at 100
mg/l |
Al
|
50 mg/l or higher
|
Plus error
|
No stain at 100
mg/l |
Cr6+
|
less than 100mg/l
|
No effect
|
Pale blue stain
at 100 mg/l or higher |
Co
|
less than 100mg/l
|
No effect |
No stain at 100
mg/l |
CN-
|
0.2 mg/l or higher
|
Minus error |
No stain at 100
mg/l |
Fe
|
100 mg/l or higher
|
No effect |
No stain at 100
mg/l |
Ni
|
70 mg/l or higher |
Plus error |
No stain at 100
mg/l |
Mn
|
30 mg/l or higher
|
Plus error |
No stain at 100
mg/l |
|
