PMID- 23016299 OWN - NLM STAT- MEDLINE DCOM- 20130809 LR - 20190923 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 30 IP - 6 DP - 2012 Jun TI - [Simultaneous determination of seven naphthalenediols in cosmetics by reversed-phase high performance liquid chromatography]. PG - 630-4 AB - A novel analytical method for the simultaneous determination of seven naphthalenediols (2,6-naphthalenediol, 1,5-naphthalenediol, 1,6-naphthalenediol, 2,7-naphthalenediol, 1,7-naphthalenediol, 1,3-naphthalenediol and 2,3-naphthalenediol) in cosmetics by reversed-phase high performance liquid chromatography (RP-HPLC) with a diode array detector was established. The moisturizer, cream, emulsion and water-like cosmetic samples were extracted with 95% ethanol (v/v), and the powder-like cosmetic samples were extracted with 95% ethanol-0.1% acetic acid (3: 2, v/v), then the extracts were centrifuged, filtrated, and analyzed by RP-HPLC using a C18 column, employing methanol-0.1% acetic acid aqueous solution as the mobile phases under the condition of gradient elution. The naphthalenediols were qualitatively determined by retention times, and confirmed by ultraviolet spectra. The external standard method was applied for the quantification. The results indicated that the limits of quantification (LOQs) of the seven naphthalenediols were ranged from 0.5 mg/kg to 1.2 mg/kg (S/N = 10); meanwhile, the linear correlation coefficients of them were all no less than 0.999 0 within the linear ranges. Their recoveries in spiked samples at the levels of 5.0 - 50 mg/kg were ranged from 84.0% to 102% with the relative standard deviations (RSDs) of 1.3% - 5.7% (n = 6). The method is simple, precise and suitable for the determination of naphthalenediols in cosmetic samples. FAU - Chen, Lijian AU - Chen L AD - Guangzhou Quality Supervision and Testing Institute, Guangzhou 510110, China. FAU - Huang, Jinfeng AU - Huang J FAU - He, Minheng AU - He M FAU - Lin, Senyu AU - Lin S FAU - Guo, Xindong AU - Guo X LA - chi PT - English Abstract PT - Journal Article PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Cosmetics) RN - 0 (Naphthols) SB - IM MH - Chromatography, High Pressure Liquid/*methods MH - Chromatography, Reverse-Phase/*methods MH - Cosmetics/*analysis/chemistry MH - Naphthols/*analysis/chemistry EDAT- 2012/09/29 06:00 MHDA- 2013/08/10 06:00 CRDT- 2012/09/29 06:00 PHST- 2012/09/29 06:00 [entrez] PHST- 2012/09/29 06:00 [pubmed] PHST- 2013/08/10 06:00 [medline] AID - 10.3724/sp.j.1123.2012.02015 [doi] PST - ppublish SO - Se Pu. 2012 Jun;30(6):630-4. doi: 10.3724/sp.j.1123.2012.02015.