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- W2001158082 abstract "Capillary zone electrophoresis was employed for the measurement of chloramphenicol using end-column amperometric detection with a carbon fiber micro-disk array electrode, at a constant potential of −1.00 V vs. saturated calomel electrode. The effect of oxygen in the buffer has been investigated. It is found that when the area of the carbon fiber electrode is smaller than 1.1 mm2, the interference of oxygen can be overcome. In this procedure deoxygenation is not necessary. The effect of pH, the concentration of the buffer and the high separation voltage across the capillary on the migration time, electrophoretic peak current and separation efficiency has been studied. The optimum conditions of separation and detection are 8.4×10−4 mol/l HOAc–3.2×10−3 mol/l NaOAc for the buffer solution, 20 kV for the separation voltage, 5 kV and 5 s for the injection voltage and the injection time, respectively. The calibration plot was found to be linear in the range 5×10−6 to 1×10−3 mol/l and the limit of detection is 9.1×10−7 mol/l or 1.4 fmol (S/N=2). The relative standard deviation is 1.1% for the migration time and 2.3% for the electrophoretic peak current. The method was applied to the determination of chloramphenicol in human serum." @default.
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- W2001158082 date "1990-01-01" @default.
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- W2001158082 title "Rapid monitoring of chloramphenicol in microsamples of plasma by capillary gas chromatography with electron-capture detection" @default.
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- W2001158082 doi "https://doi.org/10.1016/s0378-4347(00)83423-4" @default.
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