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Sudan is a synthetic lipophilic azo compounds, an industrial dye that can not be used as a food additive. Sudan is divided into the main Ⅰ, Ⅱ, Ⅲ, Ⅳ four categories. There is no evidence of carcinogenic to humans, but it has the potential human health threat. With this detection technique developed in recent years, this article will be Sudan's testing methods were reviewed

Sudan is a synthetic lipophilic azo compounds, an industrial dye that can not be used as a food additive. Sudan is divided into the main Ⅰ, Ⅱ, Ⅲ, Ⅳ four categories. There is no evidence of carcinogenic to humans, but it has the potential human health threat. With this detection technique developed in recent years, this article will be Sudan's testing methods were reviewed。
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