TY - JOUR T1 - A new method for determination of myricetin and quercetin using solid phase microextraction-high performance liquid chromatography-ultra violet/visible system in grapes, vegetables and red wine samples. AU - Kumar,Ashwini, AU - Malik,Ashok Kumar, AU - Tewary,Dhananjay Kumar, Y1 - 2008/11/01/ PY - 2008/09/09/received PY - 2008/10/10/revised PY - 2008/10/10/accepted PY - 2008/12/17/entrez PY - 2008/12/17/pubmed PY - 2009/2/3/medline SP - 177 EP - 81 JF - Analytica chimica acta JO - Anal Chim Acta VL - 631 IS - 2 N2 - A new approach for the extraction and determination of myricetin and quercetin by using SPME-HPLC-UV system has been developed. The method involves adsorption of flavonoids on CAR/TPR fiber followed by desorption in the desorption chamber of SPME-HPLC interface using citrate buffer (0.001 M):acetonitrile (70:30) as mobile phase and UV detection at 372 nm. The detection limits for myricetin and quercetin are 48.3 and 24.7 pgmL(-1), respectively. The proposed method was validated by determining myricetin and quercetin in tomato, onion, grapes and red wine samples. SN - 1873-4324 UR - https://www.unboundmedicine.com/medline/citation/19084623/A_new_method_for_determination_of_myricetin_and_quercetin_using_solid_phase_microextraction_high_performance_liquid_chromatography_ultra_violet/visible_system_in_grapes_vegetables_and_red_wine_samples_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0003-2670(08)01812-6 DB - PRIME DP - Unbound Medicine ER -