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- W1897410693 abstract "A simple, rapid, and sensitive method based on dispersive liquid–liquid microextraction combined with HPLC-UV detection applied for the quantification of chlordiazepoxide in some real samples. The effect of different extraction conditions on the extraction efficiency of the chlordiazepoxide drug was investigated and optimized using central composite design as a conventional efficient tool. Optimum extraction condition values of variables were set as 210 μL chloroform, 1.8 mL methanol, 1.0 min extraction time, 5.0 min centrifugation at 5000 rpm min−1, neutral pH, 7.0% w/v NaCl. The separation was reached in less than 8.0 min using a C18 column using isocratic binary mobile phase (acetonitrile/water (60:40, v/v)) with flow rate of 1.0 mL min−1. The linear response (r2 > 0.998) was achieved in the range of 0.005–10 μg mL−1 with detection limit 0.0005 μg mL−1. The applicability of this method for simultaneous extraction and determination of chlordiazepoxide in four different matrices (water, urine, plasma, and chlordiazepoxide tablet) were investigated using standard addition method. Average recoveries at two spiking levels were over the range of 91.3–102.5% with RSD < 5.0% (n = 3). The obtained results show that dispersive liquid–liquid microextraction combined with HPLC-UV is a fast and simple method for the determination of chlordiazepoxide in real samples." @default.
- W1897410693 created "2016-06-24" @default.
- W1897410693 creator A5053902238 @default.
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- W1897410693 date "2013-04-27" @default.
- W1897410693 modified "2023-10-16" @default.
- W1897410693 title "Optimization of dispersive liquid-liquid microextraction with central composite design for preconcentration of chlordiazepoxide drug and its determination by HPLC-UV" @default.
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- W1897410693 doi "https://doi.org/10.1002/jssc.201300085" @default.
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