Rapid analysis of four Sudan dyes using direct analysis in real   time-mass spectrometry

doi:10.1039/c4ay02409e

CORC > 北京大学 > 化学与分子工程学院

	Rapid analysis of four Sudan dyes using direct analysis in real time-mass spectrometry
	Li, Ze ; Zhang, Yi-Wei ; Zhang, Yi-Ding ; Bai, Yu ; Liu, Hu-Wei
刊名	analytical methods
	2015
关键词	LIQUID-CHROMATOGRAPHY CONTAINING FOODSTUFFS AMBIENT CONDITIONS AZO-DYES PARA RED PRODUCTS IONIZATION PEPPER IV
DOI	10.1039/c4ay02409e
英文摘要	A simple direct analysis in a real time-mass spectrometry (DART-MS) method was developed for the rapid determination of four Sudan dyes (I-IV) in chili powder. Simple liquid extraction by hexane without further clean-up was used for sample preparation. DART parameters were systematically optimized to achieve the best detection performance. A DIP-it sampler was used for automatic sampling. The matrix effect was measured by comparing the limit of detection (LOD) in matrix solution with that in pure organic solution. Eventually, the identification of the Sudan dyes was confirmed by MS/MS results and the LODs for four analytes in matrix solution were similar to 0.5 mu g mL(-1). The method showed good linearity with correlation coefficients (R-2) greater than 0.99 for concentrations ranging from 1 to 20 mu g mL(-1). The whole analytical process could be completed within 15 minutes with good recoveries (88-116%) and satisfactory repeatability (<26%, n = 3).; Chemistry, Analytical; Food Science & Technology; Spectroscopy; SCI(E); EI; 0; ARTICLE; hwliu@pku.edu.cn; 1; 86-90; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150350]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Li, Ze,Zhang, Yi-Wei,Zhang, Yi-Ding,et al. Rapid analysis of four Sudan dyes using direct analysis in real time-mass spectrometry[J]. analytical methods,2015.
APA	Li, Ze,Zhang, Yi-Wei,Zhang, Yi-Ding,Bai, Yu,&Liu, Hu-Wei.(2015).Rapid analysis of four Sudan dyes using direct analysis in real time-mass spectrometry.analytical methods.
MLA	Li, Ze,et al."Rapid analysis of four Sudan dyes using direct analysis in real time-mass spectrometry".analytical methods (2015).