Rodríguez I, Mejuto M C, Bollaín M H, Cela R
Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Química, Universidad de Santiago de Compostela, Spain.
J Chromatogr A. 1997 Oct 31;786(2):285-92. doi: 10.1016/s0021-9673(97)00579-7.
Two off-line concentration procedures for the determination of sixteen chlorophenols in drinking water were developed. One involves acetylation of the samples and their subsequent preconcentration over graphitized carbon black cartridges. In the other, chlorophenols are derivatized following preconcentration over cross-linked styrene-divinylbenzene. The two proposed procedures are compared in terms of chlorophenol recoveries, throughput and breakthrough volume of the cartridges. The acetylated derivatives of chlorophenols are determined highly selectively at the concentration levels established by international legislation using gas chromatography in combination with microwave induced plasma atomic emission spectroscopy.
开发了两种用于测定饮用水中16种氯酚的离线浓缩方法。一种方法是对样品进行乙酰化处理，然后将其在石墨化炭黑柱上进行预浓缩。另一种方法是在交联苯乙烯-二乙烯基苯上进行预浓缩后对氯酚进行衍生化。从氯酚回收率、通量和柱的穿透体积方面对这两种提议的方法进行了比较。使用气相色谱结合微波诱导等离子体原子发射光谱法，在国际法规规定的浓度水平下，对氯酚的乙酰化衍生物进行了高选择性测定。
