Bertsch W, Anderson E, Holzer G
J Chromatogr. 1975 Oct 29;112:701-18. doi: 10.1016/s0021-9673(00)99998-9.
Traces of volatile organic materials in water have been concentrated by gas phase stripping and adsorption onto a porous polymer. A simple all-glass sampling device is proposed which allows efficient concentration at elevated temperatures. Sample transfer from absorbent into a gas chromatographic column is effected by a simple one-step procedure involving heat desorption. The capacity of the absorbent has been determined for a number of model substances which are found in water. Under the sampling conditions used, compounds being less volatile than benzene are usually quantitatively retained, with some exceptions. Separations were effected with highly efficient glass capillary columns. Water samples, collected from a small number of locations, included both tap water and untreated waters. A number of volatiles have been determined by gas chromatography-mass spectrometry in drinking water and in a river which flows through an industrialized area. The drinking water examined contains a large number of chlorinated and brominated compounds whereas the river water is largely free from this class of substances. Derivatives of camphor and terpenes have been identified in this particular river.
水中挥发性有机物质的痕量已通过气相吹扫并吸附到多孔聚合物上进行富集。本文提出了一种简单的全玻璃采样装置，该装置可在高温下实现高效富集。通过涉及热解吸的简单一步程序，将样品从吸附剂转移至气相色谱柱中。已针对水中发现的多种模型物质测定了吸附剂的容量。在所采用的采样条件下，挥发性比苯小的化合物通常会被定量保留，但存在一些例外情况。使用高效玻璃毛细管柱进行分离。从少数地点采集的水样包括自来水和未处理水。通过气相色谱 - 质谱联用仪测定了饮用水和流经工业区的一条河流中的多种挥发性物质。检测的饮用水中含有大量氯化和溴化化合物，而河水中这类物质含量较少。在这条特定河流中已鉴定出樟脑和萜类的衍生物。
