建立简便快速的测定辣椒制品中4种苏丹红染料的检测方法,以乙腈为提取溶剂,采用乙腈-0.1%水溶液的流动相体系和正离子电离模式,用UPLC-MS/MS测定4种苏丹红染料;苏丹红Ⅰ、Ⅱ、Ⅲ、Ⅳ线性范围为0～200ng/mL,R2大于0.9911,检出限分别为1.0、2.0、2.0、4.0μg/kg,加标回收率均大于75%,RSD小于10%。该方法简便灵敏,准确快速,可用于辣椒制品中4种苏丹红染料的测定及确证。 A simple and rapid method for the determination of four sudan dyes in pepper products was established. The mobile phase system of acetonitrile-0.1% aqueous solution and the positive ionization mode were developed by using acetonitrile as the extraction solvent. The four Sudan dyes were determined by UPLC-MS / MS ; The linear range of Sudan Ⅰ, Ⅱ, Ⅲ, Ⅳ was 0 ~ 200ng / mL, R2 was greater than 0.9911, the detection limits were 1.0,2.0,2.0,4.0μg / kg respectively, the recoveries were above 75% 10%. The method is simple, sensitive, accurate and rapid and can be used for the determination and confirmation of four Sudan dyes in pepper products.