Rhodamine B (RhB) is a banned food additive and has been classified as illegal colourant. Therefore, the risk of RhB contamination should be strictly monitored. In this study, a sensitive UPLC-MS/MS method was applied to monitor RhB in 292 various spices such as chilli, pepper and tomato products. The results showed 22.7% of chilli powder samples, 18.5% of pepper powder samples, 11.1% of chilli oil samples and 9.1% of pepper oil samples were contaminated with RhB. Chilli powder contained RhB up to 44,935 μg/kg with an average of 743 μg/kg, pepper powder up to 65.9 μg/kg with an average of 4.1 μg/kg, chilli oil up to 14.6 μg/kg with an average of 1.0 μg/kg and pepper oil up to 1.1 μg/kg with an average of 0.2 μg/kg, respectively. Considering the common consumption of chilli products and pepper products by so many consumers, RhB exposure is significant and should be decreased.

罗丹明B（RhB）是一种禁用的食品添加剂，已被列为非法着色剂。因此，应严格监控RhB污染的风险。在这项研究中，采用了一种敏感的UPLC-MS / MS方法来监测292种各种香料中的RhB，例如辣椒，胡椒和番茄产品。结果显示22.7％的辣椒粉样品，18.5％的辣椒粉样品，11.1％的辣椒油样品和9.1％的辣椒油样品被RhB污染。辣椒粉中的RhB含量高达44,935μg/ kg，平均为743μg/ kg，辣椒粉中含量为65.9μg/ kg，平均为4.1μg/ kg，辣椒油含量为14.6μg/ kg，平均为1.0μg / kg和胡椒油，最高分别为1.1μg/ kg和0.2μg/ kg。考虑到许多消费者共同消费辣椒和胡椒产品，