Extraction and Detection of Pentobarbital in Soil by Solid Phase Extraction and Liquid Chromatography / Mass Spectrometry
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ON-LINE SOLID-PHASE EXTRACTION AND LIQUID CHROMATOGRAPHY/PARTICLE BEAM-MASS SPECTROMETRY FOR DEGRADATION STUDIES OF SOME POLAR PESTICIDES IN WATER
An on-line automated method for photodegradation studies of isoproturon, diuron, atrazine, fenitrothion, and metoxuron by means of liquid chromatography/mass spectrometry (LC/MS) with particle beam (PB) interface is described. Surface water samples were first spiked with 50 µg/l of each pesticide and then exposed to the radiation of the medium-pressure mercury lamp. Next, in regular intervals o...
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A simple and efficient homogenous liquid-liquid extraction method performed in a narrow tube combined with dispersive liquid-liquid microextraction method has been presented for the simultaneous determination of two antiepileptic drugs in urine followed by gas chromatography with flame ionization detection. In this method, a mixture of acetonitrile and urine sample (homogenous solution) is load...
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