- 产品品牌：
- 日本gastec
- 产品型号：
- 273
- 类型：
- 水质在线分析仪
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 |
| 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 |
