广州质量监督检测研究院,国家化妆品质量检验检测中心,广东 广州 511447
谭建华,博士,正高级工程师,研究方向:化妆品安全与功效,E - mail:tanjianhua0734@aliyun.com
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汪毅,聂明霞,贾芳等.固相萃取/超高效液相色谱-串联质谱法测定儿童化妆品中新康唑等4种抗生素[J].分析测试学报,2022,41(12):1746-1750.
WANG Yi,NIE Ming-xia,JIA Fang,et al.Simultaneous Determination of 4 Antibiotics in Children’s Cosmetics by Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry with Solid Phase Extraction[J].Journal of Instrumental Analysis,2022,41(12):1746-1750.
汪毅,聂明霞,贾芳等.固相萃取/超高效液相色谱-串联质谱法测定儿童化妆品中新康唑等4种抗生素[J].分析测试学报,2022,41(12):1746-1750. DOI: 10.19969/j.fxcsxb.22062904.
WANG Yi,NIE Ming-xia,JIA Fang,et al.Simultaneous Determination of 4 Antibiotics in Children’s Cosmetics by Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry with Solid Phase Extraction[J].Journal of Instrumental Analysis,2022,41(12):1746-1750. DOI: 10.19969/j.fxcsxb.22062904.
建立了测定儿童化妆品中新康唑等4种抗生素的超高效液相色谱-串联质谱法(UPLC-MS/MS)。样品经70%乙腈水溶液超声提取后,使用SCX固相萃取小柱净化,以0.1%甲酸水和乙腈作为流动相,经Waters ACQUITY BEH C,18,(2.1 mm × 100 mm,2.5 μm)色谱柱分离,使用多反应监测模式(MRM)进行测定。结果表明,4种抗生素线性关系良好,相关系数(,r,)均为0.999,方法检出限(LOD)和定量下限(LOQ)分别为0.005 ~ 0.250 μg/g和0.010 ~ 0.500 μg/g。4种抗生素在3种基质和3个加标水平的平均回收率为89.3% ~ 113%,相对标准偏差(RSD)为0.90% ~ 7.2%。该方法高效、准确、特异性好,满足新康唑等4种抗生素在儿童化妆品中的测定需求。
An ultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS) was established for the determination of 4 antibiotics in children’s cosmetics.The cosmetic samples were extracted with 70% acetonitrile-water solution,and then purified with a SCX column.The target analytes were separated on a Waters ACQUITY BEH C,18,(2.1 mm × 100 mm,2.5 μm) column using 0.1% formic acid solution and acetonitrile as mobile phases.The analysis was performed under multiple reaction monitoring(MRM) mode.Results showed that there were good linear relationships for 4 antibiotics in the respective concentration ranges with their correlation coefficients(,r,) of 0.999.The limits of detection(LODs) and limits of quantitation(LOQs) of the method were in the range of 0.005-0.250 μg/g and 0.010-0.500 μg/g,respectively. Average recoveries for the 4 antibiotics in 3 kinds of samples at 3 spiked levels ranged from 89.3% to 113%,with relative standard deviations(RSDs,,n ,= 6) of 0.90%-7.2%.The method is effective,accurate and specific,and it could be used for the determination of 4 antibiotics in children’s cosmetics.
抗生素儿童化妆品超高效液相色谱-串联质谱法(UPLC-MS/MS)净化
antibioticchildren’s cosmeticsultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)purification
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