Study of a new matrix certified reference material for accurate measurement of florfenicol in prawn meat powder

文献类型： 外文期刊

第一作者： Yang, Mengrui

作者： Yang, Mengrui;Jian, Lingbo;Wang, Min;Zhou, Jian;Liu, Quanhui;Wang, Tongtong;Zhang, Liyuan

作者机构：

关键词： Matrix certified reference material; Florfenicol in prawn meat powder; Characterization; Traceability; Isotope dilution mass spectrometry

期刊名称：MEASUREMENT （ 影响因子：3.927； 五年影响因子：3.778 ）

ISSN： 0263-2241

年卷期： 2021 年 185 卷

页码：

收录情况： SCI

摘要： A new matrix certified reference material (CRM) of florfenicol in prawn meat powder [GBW(E)100638] was developed for validation of analytical method and assurance of measurement quality in the routine monitoring of prawn food safety. The incurred prawn materials were freeze-dried, ground, sieved, homogenized, bottled and gamma-irradiated to prepare the CRM candidates. For characterization of the CRM, isotope dilution coupled with liquid chromatography tandem mass spectrometry as a reliable and accurate method was studied and employed by all participants in co-laboratory value assignment program. The certified value with expanded uncertainty (k = 2, at a confidence of 95%) was 11.8 mu g/kg +/- 1.9 mu g/kg for florfenicol in prawn meat powder. Homogeneity, long-term stability of fifteen months at -20 degrees C for storage, and short-term stability of nine days at 4 degrees C, 20 degrees C and 40 degrees C for transportation and use were examined. In addition, uncertainties originating from characterization, inhomogeneity and instability were assessed.

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