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What is Methylene Blue Method for Surfactants about?
This document is a Slovenian standard that is identical to the ISO 7875-1:1984 international standard, which provides a spectrometric method for determining anionic surfactants in water. The method involves forming salts between methylene blue and anionic surfactants in an alkaline medium, extracting the salts into chloroform, measuring absorbance at 650nm, and evaluating the results using a calibration curve to determine methylene blue active substances as sodium dodecyl benzene sulfonate. The standard app
- Author
- Andressa Silva
- Language
- EN