- 产品品牌：
- 日本gastec
- 产品型号：
- 211M
- 类型：
- 水质在线分析仪
211M硫化物检测管 S2-的详细介绍
sulphide Ion NO.211M S2-
| Performance | |||
| Measuring Range | 2 to 300 ppm | ||
| Sampling Time | 2 minutes | ||
| Detecting Limit | 0.5 ppm | ||
| Colour Change | White → Brown | ||
| Reaction Principle | S2- + Pb(CH3COO)2 → PbS | ||
| Shelf Life | 3 Years | ||
| Corrections for temperature & humidity | Unnecessary | ||
| Store the tubes at cool and dark place. | |||
| Possible coexisting substancesand their interferences (NOTE) | |||
| Substance | Concentration | Interference | Change colour by itselfto |
| Cl- | 15000 ppm | + | No |
| CrO42- | 50 ppm | - | Yellow |
| CO32- | 500 ppm | + | No |
| SO32- | 200 ppm | - | No |
| S2O32- | 100 ppm | + | No |
