PMID- 22500439 OWN - NLM STAT- MEDLINE DCOM- 20140702 LR - 20161018 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 29 IP - 12 DP - 2011 Dec TI - [Determination of aflatoxins in cashew by high performance liquid chromatography-tandem mass spectrometry]. PG - 1155-9 AB - A method for the determination of four aflatoxins in cashew using high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was developed. The sample was extracted with methanol-water (8: 2, v/v) solution, followed by a cleanup procedure with Florisil column. The target compounds were eluted using 5 mL acetone-water-formic acid (96: 3.5:0.5, v/v/v) solution. The eluate was dried under N2, then dissolved in 1 mL methanol. Four aflatoxins were separated in MG C18 column (100 mm x 3.0 mm, 3 microm) adopting a gradient program within 15 min. A triple quadrupole mass spectrometry equipped with an electrospray ionization source operated in the positive ion mode was used to detect the aflatoxins. The good correlation coefficients (r2 > 0.997) of the four aflatoxins were obtained within their respective linear ranges. The limits of detection (S/N = 3) were between 0.009 microg/kg and 0.04 microg/kg, and the limits of quantification (S/N = 10) were between 0.03 microg/kg and 0.12 microg/kg. The recoveries were in a range of 63.0% -78.5% with the relative standard deviations (RSDs) varied from 2.8% to 9.1%. The validation results meet the requirements of trace assay. Matrix effects were estimated and the signal suppression/enhancement ranged from 88.8% to 99.4%. The results indicate that the developed method is simple, fast, accurate, and can be applied for the determination of fours aflatoxins in cashew. FAU - Bi, Ruifeng AU - Bi R AD - College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China. prefers@163.com FAU - Fan, Zhixian AU - Fan Z FAU - Fu, Meng AU - Fu M LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Aflatoxins) SB - IM MH - Aflatoxins/*analysis MH - Anacardium/*chemistry MH - *Chromatography, High Pressure Liquid MH - Food Contamination/*analysis MH - *Tandem Mass Spectrometry EDAT- 2012/04/17 06:00 MHDA- 2014/07/06 06:00 CRDT- 2012/04/17 06:00 PHST- 2012/04/17 06:00 [entrez] PHST- 2012/04/17 06:00 [pubmed] PHST- 2014/07/06 06:00 [medline] PST - ppublish SO - Se Pu. 2011 Dec;29(12):1155-9.