1.石家庄海关技术中心,河北 石家庄 050051
2.河北医科大学 公共卫生学院,河北 石家庄 050017
艾连峰,博士,研究员,研究方向:食品安全与分析技术,E-mail:ai_lianfeng@126.com
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张海超,王敬,贾海涛等.固相萃取/超高效液相色谱-串联质谱法测定香辛调料中的曲托喹酚[J].分析测试学报,2021,40(07):1086-1090.
ZHANG Hai-chao,WANG Jing,JIA Hai-tao,et al.Determination of Tretoquinol in Pungent Spice by Solid-phase Extraction Coupled Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(07):1086-1090.
张海超,王敬,贾海涛等.固相萃取/超高效液相色谱-串联质谱法测定香辛调料中的曲托喹酚[J].分析测试学报,2021,40(07):1086-1090. DOI: 10.3969/j.issn.1004-4957.2021.07.017.
ZHANG Hai-chao,WANG Jing,JIA Hai-tao,et al.Determination of Tretoquinol in Pungent Spice by Solid-phase Extraction Coupled Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry[J].Journal of Instrumental Analysis,2021,40(07):1086-1090. DOI: 10.3969/j.issn.1004-4957.2021.07.017.
采用MCX固相萃取柱净化,以超高效液相色谱-串联质谱(UPLC-MS/MS)法建立了香辛调料中曲托喹酚的测定方法。样品采用0.2%酸性乙醇提取,经MCX柱净化浓缩后,在ACQUITY BEH C,18,色谱柱上以乙腈和0.1%甲酸水溶液为流动相梯度洗脱,UPLC-MS/MS以MRM方式进行定量分析。结果表明,曲托喹酚在0.1~50 ng/mL范围内线性关系良好,相关系数(,r,)大于0.998,方法的检出限(LOD)为0.2 μg/kg,定量下限(LOQ)为0.5 μg/kg。化合物在不同基质的4个加标水平(0.5、2、10、100 μg/kg)下的回收率为74.5%~98.8%,相对标准偏差(RSD)为3.1%~9.1%。该方法灵敏、准确、可靠,可用于香辛调料中曲托喹酚的测定。
An ultra-performance liquid chromatography-tandem mass spectrometric(UPLC-MS/MS) method was developed for the determination of tretoquinol in pungent spice with MCX solid-phase extraction(SPE) purification. The samples were extracted with 0.2% acid ethanol, purified with a MCX column, and quantified by UPLC-MS/MS in MRM mode after gradient elution on an ACQUITY BEH C,18, column with acetonitrile and 0.1% formic acid solution as mobile phase. The results showed that the calibration curves were linear in the range of 0.1-50 ng/mL with correlation coefficients(,r,) more than 0.998. The limits of detection (LODs) were 0.2 μg/kg and the limits of quantitation (LOQs) were 0.5 μg/kg. The average recoveries of tretoquinol at four different spiked levels (0.5, 2, 10, 100 μg/kg) ranged from 74.5% to 98.8%,with relative standard deviations(RSD) of 3.1%-9.1%. The proposed method is sensitive, accurate and reliable, and could be used for the determination of tretoquinol in pungent spice.
曲托喹酚固相萃取超高效液相色谱-串联质谱(UPLC-MS/MS)香辛调料
tretoquinolsolid-phase extractionultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS)pungent spice
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