PMID- 26284419 OWN - NLM STAT- MEDLINE DCOM- 20161014 LR - 20161230 IS - 1944-0057 (Electronic) IS - 1944-0057 (Linking) VI - 32 IP - 11 DP - 2015 TI - Determination and surveillance of hydrocortisone and progesterone in livestock products by liquid chromatography-tandem mass spectrometry. PG - 1833-41 LID - 10.1080/19440049.2015.1084053 [doi] AB - A simple analytical method for the determination of hydrocortisone and progesterone in bovine, swine, and chicken muscle and eggs was developed. Hydrocortisone and progesterone were extracted with acetonitrile and subsequently cleaned-up using an Oasis HLB mini-cartridge. The method was validated in accordance with Japanese guidelines and exhibited trueness from 86.6% to 104.3% and precision (relative standard deviations (RSDs) of repeatability and within reproducibility were under 8.7% and 11.7%, respectively). The method was applied to 103 bovine muscle, 137 swine muscle, 69 chicken muscle and 52 egg samples that were commercially available in Tokyo, Japan. The hydrocortisone concentration was 0.9-41.2 microg kg(-1) in all bovine muscle samples, with an average of 7.7 microg kg(-1) and a median of 6.2 microg kg(-1). The progesterone concentration in 50 samples exceeded the limit of quantification (LOQ) and reached a maximum of 95.4 microg kg(-1). Hydrocortisone was also detected in all swine muscle samples at concentrations of 2.0-56.0 microg kg(-1). Its average and median concentrations amounted to 13.1 and 11.3 microg kg(-1), respectively. Twenty-three samples contained progesterone levels surpassing the LOQ, with a maximum concentration of 107.0 microg kg(-1). No chicken muscle samples contained any of the analytes. The progesterone concentration was 15.5-200.0 microg kg(-1) in all egg samples, with an average of 95.4 microg kg(-1) and a median of 90.5 microg kg(-1). FAU - Nakajima, Takayuki AU - Nakajima T AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Tsuruoka, Yumi AU - Tsuruoka Y AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Kanda, Maki AU - Kanda M AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Hayashi, Hiroshi AU - Hayashi H AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Hashimoto, Tsuneo AU - Hashimoto T AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Matsushima, Youko AU - Matsushima Y AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Yoshikawa, Souichi AU - Yoshikawa S AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Nagano, Chieko AU - Nagano C AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Okutomi, Yuki AU - Okutomi Y AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. FAU - Takano, Ichiro AU - Takano I AD - a Tokyo Metropolitan Institute of Public Health , Shinjuku-ku , Tokyo 169-0073 , Japan. LA - eng PT - Journal Article DEP - 20150918 PL - England TA - Food Addit Contam Part A Chem Anal Control Expo Risk Assess JT - Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment JID - 101485040 RN - 0 (Environmental Pollutants) RN - 4G7DS2Q64Y (Progesterone) RN - WI4X0X7BPJ (Hydrocortisone) SB - IM MH - Animals MH - Cattle MH - Chickens MH - Chromatography, High Pressure Liquid MH - Eggs/*analysis MH - Environmental Monitoring MH - Environmental Pollutants/*analysis MH - *Food Analysis MH - Hydrocortisone/*analysis MH - Japan MH - Meat/analysis MH - Muscles/*chemistry MH - Progesterone/*analysis MH - Swine MH - Tandem Mass Spectrometry OTO - NOTNLM OT - QuEChERS OT - liquid chromatography-tandem mass spectrometry OT - livestock products OT - steroid hormone OT - surveillance EDAT- 2015/08/19 06:00 MHDA- 2016/10/16 06:00 CRDT- 2015/08/19 06:00 PHST- 2015/08/19 06:00 [entrez] PHST- 2015/08/19 06:00 [pubmed] PHST- 2016/10/16 06:00 [medline] AID - 10.1080/19440049.2015.1084053 [doi] PST - ppublish SO - Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2015;32(11):1833-41. doi: 10.1080/19440049.2015.1084053. Epub 2015 Sep 18.