Determination of cationic and nonionic surfactants using LC/MS.
نویسندگان
چکیده
منابع مشابه
Simultaneous determination of cationic surfactants and nonionic surfactants by ion-association titration.
A simultaneous determination of cationic and nonionic surfactants has been developed using ion-association titration. Tetrabromophenolphthalein ethyl ester (TBPE) was used as an indicator. Benzalkonium reacted with TBPE to form a blue ion-associate in the organic phase. When tetrakis(4-fluorophenyl)borate was added dropwise to the solution, the color of the organic phase turned to yellow at the...
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15 صفحه اولSimultaneous Separation of Anionic, Nonionic, Cationic and Amphoteric Surfactants Using a Single HPLC Column
High performance liquid chromatography (HPLC) is the preferred analytical technique for the separation and identification of surfactants in consumer products. Although many HPLC columns are available for surfactant analysis, none of these columns provide optimal selectivity for the analysis of anionic, nonionic, cationic, and amphoteric surfactants. This article describes an HPLC column, Acclai...
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Nonionic surfactants are amphilic chemicals that enhance desorption and bioavailability by increasing solubility and dispersion of poorly soluble hydrocarbons and oils. This study was conducted to determine the toxicity of commercial nonionic surfactants by using the Microtox Acute Toxicity test which is a rapid, simple test for toxicity. The test uses the luminescent bacterium V. fischeri as t...
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Three surfactants were selected to modify glassy carbon electrode including sodiumdodecylbenzenesulfonate, Tween 80 and cetyltrimethylammonium bromide. The obtained nano-Au/surfactant/GCEs were characterized with scanning electron microscopy and electrochemicaltechniques. Electrochemical behavior of catechol at the nano-Au/surfactant/GCE was thoroughlyinvestigated for mo...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 2002
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.51.921