DETERMINATION OF VALPROIC ACID IN HUMAN PLASMA USING DISPERSIVE LIQUID-LIQUID MICROEXTRACTION FOLLOWED BY GAS CHROMATOGRAPHY-ﬂAME IONIZATION DETECTION

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FAZELI BAKHTIYARI RANA; PANAHI AZAR VAHID; SOROURADDIN MOHAMMAD HOSSEIN; JOUYBAN ABOLGHASEM

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Journal: Iranian Journal of Basic Medical Sciences Year:2015 | Volume:18 | Issue:10 Page(s): 979-988

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Title

DETERMINATION OF VALPROIC ACID IN HUMAN PLASMA USING DISPERSIVE LIQUID-LIQUID MICROEXTRACTION FOLLOWED BY GAS CHROMATOGRAPHY-ﬂAME IONIZATION DETECTION

Author(s)

FAZELI BAKHTIYARI RANA | PANAHI AZAR VAHID | SOROURADDIN MOHAMMAD HOSSEIN | JOUYBAN ABOLGHASEM | Issue Writer Certificate

Keywords

DISPERSIVE LIQUID-LIQUID-MICROEXTRACTION

GAS CHROMATOGRAPHY-ﬂAME- IONIZATION DETECTOR

HUMAN PLASMA

VALPROIC ACID

Abstract

Objective(s): Dispersive liquid-liquid microextraction coupled with gas chromatography (GC)-ﬂame ionization detector was developed for the determination of VALPROIC ACID (VPA) in HUMAN PLASMA.Materials and Methods: Using a syringe, a mixture of suitable extraction solvent (40 ml chloroform) and disperser (1 ml acetone) was quickly added to 10 ml of diluted plasma sample containing VPA (pH, 1.0; concentration of NaCl, 4% (w/v)), resulting in a cloudy solution. After centrifugation (6000 rpm for 6 min), an aliquot (1 ml) of the sedimented organic phase was removed using a 1-ml GC microsyringe and injected into the GC system for analysis. One variable at a time optimization method was used to study various parameters affecting the extraction efficiency of target analyte. Then, the developed method was fully validated for its accuracy, precision, recovery, stability, and robustness.Results: Under the optimum extraction conditions, good linearity range was obtained for the calibration graph, with correlation coefficient higher than 0.998. Limit of detection and lower limit of quantitation were 3.2 and 6 mg/ml, respectively. The relative standard deviations of intra and inter-day analysis of examined compound were less than 11.5%. The relative recoveries were found in the range of 97 to 107.5%. Finally, the validated method was successfully applied to the analysis of VPA in patient sample.Conclusion: The presented method has acceptable levels of precision, accuracy and relative recovery and could be used for therapeutic drug monitoring of VPA in HUMAN PLASMA.

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APA: Copy

FAZELI BAKHTIYARI, RANA, PANAHI AZAR, VAHID, SOROURADDIN, MOHAMMAD HOSSEIN, & JOUYBAN, ABOLGHASEM. (2015). DETERMINATION OF VALPROIC ACID IN HUMAN PLASMA USING DISPERSIVE LIQUID-LIQUID MICROEXTRACTION FOLLOWED BY GAS CHROMATOGRAPHY-?AME IONIZATION DETECTION. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 18(10), 979-988. SID. https://sid.ir/paper/680379/en

Vancouver: Copy

FAZELI BAKHTIYARI RANA, PANAHI AZAR VAHID, SOROURADDIN MOHAMMAD HOSSEIN, JOUYBAN ABOLGHASEM. DETERMINATION OF VALPROIC ACID IN HUMAN PLASMA USING DISPERSIVE LIQUID-LIQUID MICROEXTRACTION FOLLOWED BY GAS CHROMATOGRAPHY-?AME IONIZATION DETECTION. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2015;18(10):979-988. Available from: https://sid.ir/paper/680379/en

IEEE: Copy

RANA FAZELI BAKHTIYARI, VAHID PANAHI AZAR, MOHAMMAD HOSSEIN SOROURADDIN, and ABOLGHASEM JOUYBAN, “DETERMINATION OF VALPROIC ACID IN HUMAN PLASMA USING DISPERSIVE LIQUID-LIQUID MICROEXTRACTION FOLLOWED BY GAS CHROMATOGRAPHY-?AME IONIZATION DETECTION,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 18, no. 10, pp. 979–988, 2015, [Online]. Available: https://sid.ir/paper/680379/en

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