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  • Title: Ionic-liquid based dispersive liquid-liquid microextraction followed by high performance liquid chromatographic determination of anti-hypertensives in rat serum.
    Author: Rao RN, Raju SS, Vali RM.
    Journal: J Chromatogr B Analyt Technol Biomed Life Sci; 2013 Jul 15; 931():174-80. PubMed ID: 23797113.
    Abstract:
    A novel, simple and eco-friendly ionic liquid based dispersive liquid-liquid microextraction followed by HPLC determination of anti-hypertensive drugs viz., eprosartan, valasartan, irbesartan, losartan and telmisartan in rat serum has been developed and validated. Experimental parameters influencing the extraction efficiency, nature and volume of the ionic liquid, dispenser solvent, extraction time and effect of salt were optimized. Under the optimum conditions, the extraction recoveries were between 92.85 and 98.50%. The relative standard deviations of intra-and inter-day accuracy varied between 1.9 and 9.1% (n=3). The linearity of the proposed method was 0.1-20μg/mL with coefficients of determination varying between 0.9979 and 0.9992.
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