Development of a new certified reference material of tinidazole for quality and safety of agro-products

文献类型： 外文期刊

第一作者： Yang, Mengrui

作者： Yang, Mengrui;Wang, Min;Zhou, Jian;Song, Yinqing;Wang, Tongtong

作者机构：

关键词： Tinidazole;Certified reference materials;Characterization;Homogeneity;Stability;Uncertainty

期刊名称：ACCREDITATION AND QUALITY ASSURANCE （ 影响因子：0.655； 五年影响因子：0.681 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Two independent approaches involving mass balance (MB) method and quantitative nuclear magnetic resonance (qNMR) technique were employed to measure the purity of a new certified reference material (CRM) of tinidazole. The mass fraction of pure tinidazole CRM was assigned to be 99.7 % with an expanded uncertainty of 0.6 % (k = 2). Sample preparation, qualitative analysis, certifying methods optimization, characterization, homogeneity testing, stability monitoring, and uncertainty evaluation were systemically and comprehensively studied in development of tinidazole CRM. The results indicate that the CRM is homogenous and stable at 4 A degrees C for at least 6 months which satisfy the requirements of CRM. The new CRM (GBW(E)090756) can be applicable to instrument calibration and analytical method validation, especially for assurance of accuracy result of tinidazole determination in the program of nationwide routine monitoring and risk assessment for agro-products by Ministry of Agriculture (MOA) in China.

分类号： O65

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