Surfactant and Detergent Residue Monitoring
topic
Anionic surfactant analysis by methylene blue active substance method and non-ionic surfactant analysis by bismuth active substance method provide colorimetric effluent screening, while LC-MS/MS provides individual surfactant compound identification including linear alkylbenzene sulfonates, alcohol ethoxylates, and alkylphenol ethoxylates of particular regulatory concern.
Role
Monitors surfactant discharge from textile scouring, dyeing, and softening operations that cause foam formation and aquatic toxicity in receiving water bodies, with specific focus on nonylphenol ethoxylate surfactants whose environmental persistence and endocrine disrupting degradation products are regulated under REACH and water framework directive environmental quality standards.