PMID- 25269254 OWN - NLM STAT- MEDLINE DCOM- 20150901 LR - 20190923 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 32 IP - 6 DP - 2014 Jun TI - [Determination of gossypol in edible vegetable oil with high performance liquid chromatography-tandem mass spectrometry]. PG - 582-5 AB - A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the determination of gossypol in edible vegetable oil. The sample was extracted with ethyl alcohol by vortex-excited oscillation. The extract was cleaned up by 0.22 microm filter membrane and centrifuged for 5 min at 4 000 r/min after standing in a fridge at 4 degrees C for 30 min. The compound was separated on a C18 column (100 mm x 2.1 mm, 3.5 microm) with acetonitrile and 1% (v/v) formic acid aqueous solution as mobile phase. The detection of gossypol was carried out by LC-MS/MS with positive electrospray ionization under multiple reaction monitoring (MRM) mode using external standard method. The limits of quantification (S/N > 10) of gossypol in edible vegetable oil was 1 mg/kg. The recoveries were from 87.4% to 100% at the spiked levels of 1, 2, 200 mg/kg of gossypol in edible vegetable oil with the relative standard deviations (RSDs) between 3.9% and 12.2%. The method, with high sensitivity, good precision and high recovery, was suitable for the confirmation and quantification of gossypol residue in edible vegetable oil. FAU - Zhang, Wenhua AU - Zhang W FAU - Huang, Chaoqun AU - Huang C FAU - Xie, Wen AU - Xie W FAU - Shen, Li AU - Shen L LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Plant Oils) RN - KAV15B369O (Gossypol) SB - IM MH - Chromatography, High Pressure Liquid MH - Gossypol/*analysis MH - Plant Oils/*analysis MH - Tandem Mass Spectrometry MH - *Vegetables EDAT- 2014/10/02 06:00 MHDA- 2015/09/02 06:00 CRDT- 2014/10/02 06:00 PHST- 2014/10/02 06:00 [entrez] PHST- 2014/10/02 06:00 [pubmed] PHST- 2015/09/02 06:00 [medline] AID - 10.3724/sp.j.1123.2014.02029 [doi] PST - ppublish SO - Se Pu. 2014 Jun;32(6):582-5. doi: 10.3724/sp.j.1123.2014.02029.