Accurate and stable detection of p-phenylenediamine antioxidants and their transformation products in aquatic products using antioxidant protection - Analysis of actual aquatic products

文献类型： 外文期刊

第一作者： Zhang, Qicai

作者： Zhang, Qicai;Wang, Xianli;Liu, Chengbin;Li, Huaxi;Deng, Zhongsheng;Yao, Chunxia;Li, Yameng;Rao, Qinxiong;Song, Weiguo;Zhang, Qicai;Wang, Xianli;Liu, Chengbin;Li, Huaxi;Deng, Zhongsheng;Yao, Chunxia;Li, Yameng;Rao, Qinxiong;Song, Weiguo

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关键词： p -Phenylenediamine antioxidants; Transformation products; Antioxidant protection; Multi-plug filtration clean-up; Aquatic products

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）

ISSN： 0304-3894

年卷期： 2024 年 480 卷

页码：

收录情况： SCI

摘要： Given the high toxicity of N-(1,3-dimethylbutyl)-N '-phenyl-p-phenylenediamine (6PPD) derivatives, such as 6PPD quinone (6PPDQ) to salmon, as well as their ubiquitous presence in the environment, the contaminant of aquatic food products has drawn significant attention. However, analytical methods for p-Phenylenediamines (PPDs) and their transformation products (TPs) in aquatic products remain underdeveloped. In particular, the degradation of some compounds and strong matrix effects complicate detection. In this study, we present a stable, rapid, and sensitive method combining salt-out assisted extraction, antioxidant protection, and multi-plug filtration clean-up (m-PFC) to detect two PPDs and five TPs in aquatic products. Crucially, the appropriate selection of antioxidants prevented the degradation of the easily oxidized target compounds. Further, the m-PFC method significantly enhanced the purification efficiency, achieving satisfactory recoveries (62.1-115 %), and method detection limits (MDLs) ranging from 0.00300 to 0.400 mu g/kg. Subsequently, the method was applied to monitor PPDs and their TPs in aquatic products systematically, revealing the presence of 6PPD and N-isopropyl

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