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建立了28种工业染料的一级及二级产物离子谱库信息,并对粮食及肉制品中工业染料的液相色谱-四极杆飞行时间质谱(UPLC-Q-TOF)进行了筛查分析。样品经有机溶剂提取,并用固相萃取柱净化,WAX固相萃取柱净化水溶性醇溶性染料,中性Al2O3固相萃取柱净化脂溶性染料,通过精确质量数及保留时间与谱库匹配,基质中各物质均能进行精确地匹配和鉴定,各物质的检出限在0.001～0.040 mg/kg之间,回收率介于70%～112%之间。
The information of the ion chromatographic library of primary and secondary products of 28 industrial dyes was established, and the liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF) of industrial dyes in food and meat products was screened . The sample was extracted with organic solvent and purified with solid-phase extraction column. The WAX solid-phase extraction column was used to purify the water-soluble alcohol-soluble dye. The neutral Al2O3 solid phase extraction column was used to purify the liposoluble dye. The accurate mass number and retention time were matched with the library, Each substance can be accurately matched and identified. The detection limits of each substance ranged from 0.001 to 0.040 mg / kg and the recoveries ranged from 70% to 112%.