Under suitable conditions anionic detergents react with methylene blue to form a colored complex, which is extracted with an organic phase according to DIN 38 409-H23. Reference substance is methyl dodecylbenzene sulphonate (MBAS: 342 g/mol) (Reaction basis according to DIN 38409-H23-1).
- Reference Code: 985032
- Type: 0.20 - 4.00 mg/L MBAS
- Sufficient for: 20 determinations
- Shelf life: at least 2 years
- Sea water suitability: yes, after dilution (1+19)