Detergents Test Kits
|Range||MDL||Method||Type||Kit Cat. No.||Refill Cat. No.|
|0.0 - 3.0 ppm||0.125 ppm||Methylene Blue||CHEMets||K-9400||R-9400|
|Range||Method||Type||Kit Cat. No.|
|0 - 2.50 ppm||Methylene Blue||Vacu-vials||R-9423|
|0 - 2.50 ppm||Methylene Blue||SAM Photometer + Vacu-vials||I-2017|
The CHEMetrics test kits for for the determination of Detergents (anionic surfactants, MBAS) in aqueous solutions are based on patented Self-Filling Reagent Ampoule technology, and employ the Methylene Blue method. Premixed. Premeasured. Precise. Each kit contains 30 tests. Suitable for pharmaceutical industry as well as residential water testing.
The Methylene Blue Method
The methylene blue active substances (MBAS) method is used in a 3-minute procedure to measure anionic detergents in the 0-3 ppm (mg/l) range. The procedure features a unique extraction/sampling technique that eliminates several steps required in other test procedures and provides increased sensitivity.
Anionic detergents react with methylene blue to form a blue-colored complex that is extracted into an immiscible organic solvent. Results are expressed in ppm (mg/l) as linear alkylbenzene sulfonate (LAS), equivalent weight 325.
USEPA Methods for Chemical Analysis of Water and Wastes, Method 425.1 (1983).
APHA Standard Methods, 21st ed., Method 5540 C (2005).
ASTM D 2330-02 , Methylene Blue Active Substances.
Detergents can be introduced into the water supply by industry, soap manufacturers, and private households. Environmental analysts often include a determination of anionic detergents when assessing surface water pollution.
Cleaning validation is a requirement in industries such as pharmaceutical manufacturing which adhere to Good Manufacturing Practice (GMP) and Quality Systems Regulations (QSR), and is specific to the cleaning method and agent employed. A cleaning validation involves testing for acceptable residue on pharmaceutical manufacturing or medical device surfaces. CHEMetrics® Detergents Test Kit, Cat. No. K-9400, featuring a superior extraction/sampling technique, is routinely used by pharmaceutical companies to measure detergents (anionic surfactants) to ensure that no excessive residual surfactant remains.
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