本方法参照《2015 年国家食品污染物和有害因素风险监测工作手册》和《2015 年国家食品污染物和有害因素风险监测工作手册》中有关工业染料的检测方法进行的相关测试。 本文对手册中的样品的前处理方法进行了研究，对比发现乙腈的提取效果更好，回收率更高；滤膜材质对红 2G 的测试结果的影响很大，聚四氟乙烯材质的滤膜对工业染料的吸附较小，能够提高测试结果的准确性；定容溶剂对红2G 峰展宽有较大影响，提高定溶液水相的比例有助于降低红 2G 的峰扩散效应，提高红 2G 的灵敏度和检出限。
Sudan dyes are red dyes used for coloring solvents, oils, waxes, petrol, or as additives in shoe and floor polish. They have been found in a number of food products such as chili / chili-containing products. Sudan dyes are banned as food additives in the USA, the EU, and many other countries, due to their links to cancer and other negative health effects. To overcome limitations in popular offline SPE and LC-UV measurements, we describe an easy, comprehensive LC method using a Transcend TLX-1 system powered by TurboFlow technology to analyze five illegal dye residues in a variety of sauces.
Colors are food additives that are regulated in the EU, USA, and China. Only approved food colors can be used and others are banned such as some azo compounds, because of their potential carcinogenicity. In this Method, we describe a new Cloud Point Extraction (CPE) method for determining the presence of approved water soluble and banned fat soluble azo colors, followed by separation on a Thermo Scientific Hypersil GOLD column and detection with a Thermo Scientific MSQ Plus single quadrupole mass spectrometer.
The Thermo Scientific HPLC system is applied for the analysis of sudan dyes in paprika. The separation is performed on a Thermo Scientific Acclaim 120 C18 HPLC column, with UV detection at 500 nm.
The Thermo Scientific HPLC system is applied for the determination of sudan dyes. The separation is performed on a Thermo Scientific Acclaim 120 C18 HPLC column, with UV detection at 495 nm.
