PMID- 23256385 OWN - NLM STAT- MEDLINE DCOM- 20130808 LR - 20190923 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 30 IP - 8 DP - 2012 Aug TI - [Simultaneous determination of 14 restricted substances in flavor and fragrant by ultra high performance liquid chromatography]. PG - 816-21 AB - An ultra high performance liquid chromatographic method was established for the separation and determination of 14 restricted substances in flavor and fragrant samples. The sample was extracted by 10% (v/v) methanol aqueous solution containing 1% (v/v) ammonia. The 14 analytes were separated in 12 min on a Waters BEH C18 column (50 mm x 2.1 mm, 1.7 microm) using acetonitrile and 10 mmol/L ammonium acetate aqueous solution (containing 0.1% (v/v) acetic acid) as mobile phases with gradient elution at a flow rate of 0.2 mL/min and 35 degrees C, and detected by a diode array detector scanned from 200 nm to 500 nm. The regression equations revealed acceptable linearity (correlation coefficients ranged from 0.995 0 to 0.999 9) in the range of 0.10 - 50 mg/L for the 14 analytes. The limits of detection (LODs) were from 0.32 mg/kg to 2.51 mg/kg. The recoveries of the 14 analytes spiked in real samples at 5, 10 and 20 mg/L were 93.0% - 121% with the relative standard deviations (RSDs) of 0.51% - 4.50%. With the advantages of accessibility, high sensitivity and good reproducibility, this simple method can be used in the simultaneous determination of the restricted substances in flavor and fragrant samples. FAU - Li, Jing AU - Li J AD - Yunnan Academy of Tobacco Science, Kunming 650106, China. FAU - Xu, Jicang AU - Xu J FAU - Li, Xuemei AU - Li X FAU - Zhou, Jianguang AU - Zhou J FAU - Zhu, Yan AU - Zhu Y FAU - Miao, Mingming AU - Miao M LA - chi PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 SB - IM MH - Chromatography, High Pressure Liquid/*methods MH - Odorants/*analysis MH - *Taste EDAT- 2012/12/22 06:00 MHDA- 2013/08/09 06:00 CRDT- 2012/12/22 06:00 PHST- 2012/12/22 06:00 [entrez] PHST- 2012/12/22 06:00 [pubmed] PHST- 2013/08/09 06:00 [medline] AID - 10.3724/sp.j.1123.2012.03029 [doi] PST - ppublish SO - Se Pu. 2012 Aug;30(8):816-21. doi: 10.3724/sp.j.1123.2012.03029.