Không cần dùng thêm bơm. cắm thẳng vào cốc dung dịch
Vạch chỉ thị: 1 ~ 20 mg/L
Thang đo: 1 ~ 20 mg/L
Thời gian lấy mẫu: 5 phút
Chuyển đổi màu: Pale orange → Bluish purple
Phương trình phản ứng: Hg + PAN (indicator) → Complex compound
Số ống trong hộp: 10
Catalog
Performance
| Measuring Range |
1 to 20 mg/L |
| Sampling Time |
5 minutes |
| Detecting Limit |
0.5 mg/L |
| Colour Change |
Pale orange → Bluish purple |
| Reaction Principle |
Hg + PAN (indicator) → Complex compound |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Changes colour by itself to |
| Fe2+ |
≧ 0.5 mg/L |
 |
Reddish purple ( ≧ 0.5mg/L) |
| Fe3+ |
≧ 1 mg/L |
 |
No ( ≦ 100mg/L) |
| Cu |
≧ 0.5 mg/ L |
+ |
Reddish purple ( ≧ 0.5mg/L) |
| Zn |
≧ 0.5 mg/L |
+ |
Purple ( ≧ 0.2mg/L) |
| Mn |
≧ 1 mg/L |
+ |
Bluish purple ( ≧ 1mg/L) |
| Al |
≧ 0.5 mg/L |
+ |
No ( ≦ 100mg/L) |
| Ni |
≧ 0.3 mg/L |
+ |
Purple ( ≧ 0.3mg/L) |
| Co |
≧ 0.2 mg/L |
+ |
Purple ( ≧ 0.2mg/L) |
Detector tubes for dissolved substances
(i.e. in solution).
Dissolved sulphide detector tube
211H / 211M / 211 / 211LL

|
 |
Liquid detector tube
| Ozone: |
218 |
| Chloride ion: |
221L / 221LL |
| Mercury: |
271 |
| Hexavalent chromium: |
273 |
| Bivalent iron: |
281 |
| Copper: |
284 |
| Zinc: |
285 |
| Nicke: |
291 |
|
To measure, simply immerse the detector tube in a sample of liquid (placed in a beaker or other container). Anyone can measure concentrations quickly, easily and accurately on site.
* Adjustment for pH is required when measuring with liquid detector tubes.