PMID- 28115391 OWN - NLM STAT- MEDLINE DCOM- 20170905 LR - 20170906 IS - 1945-239X (Electronic) IS - 0021-9665 (Linking) VI - 55 IP - 3 DP - 2017 Mar 1 TI - Determination of Miroestrol and Isomiroestrol From Pueraria mirifica (White Kwao Krua) in Dietary Supplements by LC-MS-MS and LC-Q-Orbitrap/MS. PG - 214-221 LID - 10.1093/chromsci/bmw171 [doi] AB - The purpose of this study is to develop LC-MS-MS and LC-Q-Orbitrap/MS method for the analysis of the components of Pueraria mirifica, which are illegal additives in dietary supplements. Blank samples and samples spiked with miroestrol and isomiroestrol were used for the initial development and validation studies. Specificity, linearity, limit of quantification (LOQ), limit of detection (LOD), accuracy, precision, recovery and stability were employed as the validation parameters. The LODs of miroestrol and isomiroestrol were found to be 4.17 and 0.84 ng/mL, respectively, whereas their LOQs were 12.50 and 2.52 ng/mL, respectively. The determination coefficient was over 0.999, intra- and inter-day precisions were 0.8-6.9 and 1.9-9.8%, respectively, and intra and inter-day accuracies were 82.1-103.7 and 85.0-109.7%, respectively. The mean recoveries of the targeted compounds from the dietary supplements ranged from 86.9 to 108.9%. The relative standard deviations (RSDs) for recovery were <5.8%. On the other hand, the RSD of stability was <11.0%. Eight dietary supplements were tested using the newly developed and validated method, out of which six were found to be adulterated samples. CI - (c) The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Lee, Ji Hyun AU - Lee JH AD - Advanced Analysis Team, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong2-ro, Osongeup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do363-700, Republic of Korea. FAU - Kim, Jung Yeon AU - Kim JY AD - Advanced Analysis Team, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong2-ro, Osongeup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do363-700, Republic of Korea. FAU - Cho, So-Hyun AU - Cho SH AD - Advanced Analysis Team, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong2-ro, Osongeup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do363-700, Republic of Korea. FAU - Jeong, Ji Hye AU - Jeong JH AD - Advanced Analysis Team, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong2-ro, Osongeup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do363-700, Republic of Korea. FAU - Cho, Sooyeul AU - Cho S AD - Advanced Analysis Team, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong2-ro, Osongeup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do363-700, Republic of Korea. FAU - Park, Hyoung Joon AU - Park HJ AD - Advanced Analysis Team, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong2-ro, Osongeup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do363-700, Republic of Korea. FAU - Baek, Sun Young AU - Baek SY AD - Advanced Analysis Team, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong2-ro, Osongeup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do363-700, Republic of Korea. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Chromatogr Sci JT - Journal of chromatographic science JID - 0173225 RN - 0 (Plant Extracts) RN - 0 (Steroids) RN - 0 (miroestrol) SB - IM MH - Chromatography, Liquid/*methods MH - Dietary Supplements/*analysis MH - Limit of Detection MH - Linear Models MH - Plant Extracts/*chemistry MH - Pueraria/*chemistry MH - Reproducibility of Results MH - Steroids/*analysis MH - Tandem Mass Spectrometry/*methods EDAT- 2017/01/25 06:00 MHDA- 2017/09/07 06:00 CRDT- 2017/01/25 06:00 PHST- 2015/09/30 00:00 [received] PHST- 2017/01/25 06:00 [pubmed] PHST- 2017/09/07 06:00 [medline] PHST- 2017/01/25 06:00 [entrez] AID - bmw171 [pii] AID - 10.1093/chromsci/bmw171 [doi] PST - ppublish SO - J Chromatogr Sci. 2017 Mar 1;55(3):214-221. doi: 10.1093/chromsci/bmw171.