Capillary zone electrophoresis with indirect UV detection of haloacetic acids in water.
A capillary zone electrophoresis (CZE) system for determining haloacetic acids in water was optimized with indirect photometric detection. Two different carrier electrolytes, potassium hydrogenphthalate and sodium 2,6-naphthalenedicarboxylate, were evaluated in terms of sensitivity and two different electroosmotic flow modifiers, tetradecyltrimethylammonium bromide and hexadecyltrimethylammonium bromide, were tested. Parameters such as electrolyte concentration and pH, and the concentration of the electroosmotic flow modifiers, which affect the CZE separations, were investigated. The method was used to determine haloacetic acids in chlorine tap water using the liquid-liquid extraction process.
Martínez
D
D
Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, Tarragona, Spain.
Farré
J
J
Borrull
F
F
Calull
M
M
Ruana
J
J
Colom
A
A
D000085:Acetates / Q000032:analysis*; D000077286:Cetrimonium; D002593:Cetrimonium Compounds; D002713:Chlorine; D003999:Dichloroacetic Acid / Q000032:analysis; D004203:Disinfection; D019075:Electrophoresis, Capillary / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D000644:Quaternary Ammonium Compounds; D013501:Surface-Active Agents; D014238:Trichloroacetic Acid / Q000032:analysis; D050337:Trimethyl Ammonium Compounds; D014867:Water / Q000737:chemistry*
D000085:Acetates; D002593:Cetrimonium Compounds; D000644:Quaternary Ammonium Compounds; D013501:Surface-Active Agents; D050337:Trimethyl Ammonium Compounds; D014867:Water; D002713:Chlorine; C006972:chloroacetic acid; D014238:Trichloroacetic Acid; C016274:bromoacetate; C088674:dibromoacetic acid; D003999:Dichloroacetic Acid; C099813:bromochloroacetic acid; C009410:tetradecyltrimethylammonium; D000077286:Cetrimonium