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开发一种纯粹的D-曼尼托尔认证参考材料

Weizhu Chen^1,2,3, Yiping Zhang^1,2,3, Hui Chen^1,2,3

¹Engineering Research Center of Marine Biological Resource Comprehensive Utilization, Third Institute of Oceanography, Ministry of Natural Resource, Xiamen 361005, China.

Molecules (Basel, Switzerland)

|October 14, 2023

概括

开发了一种新的D-曼尼托尔认证参考材料 (CRM),其纯度为99.9%. 这种高纯度的D-曼尼托尔CRM确保了方法验证和熟练测试的准确分析结果.

科学领域:

分析化学分析化学
材料科学材料科学材料科学
计量学计量学计量学

背景情况:

认证参考材料 (CRM) 对于确保分析测量的准确性和可比性至关重要.
D-曼尼托是各种应用中广泛使用的化合物,因此需要可靠的参考标准.

研究的目的:

为D-曼尼托尔开发和描述一个新的认证参考材料 (CRM).
为了确定D-曼尼托尔CRM的纯度,均性和稳定性.
为分析方法验证和能力测试提供可靠的标准.

主要方法:

制备和结构确定D-曼尼托.
使用卡尔·菲舍尔定位,ICP-MS和头部空间GC-FID进行了表征.
通过质量平衡 (MB) 和定量核磁共振 (qNMR) 进行纯度评估.
在不同温度下进行同质性和稳定性研究.
结合多个贡献的不确定性估计.

主要成果:

确定D-曼尼托尔CRM的主要成分纯度为99.91%±0.01%.
含水量为0.036% ± 0.002%,杂质低于0.01%.
使用两个独立的方法,总体纯度为99.9%±1.1% (k=2).
在室温下,CRM可保持长达48个月的稳定性,在50°C下可保持28天的稳定性.

结论:

一种新的D-曼尼托尔CRM (GBW(E) 100681) 已经成功开发和表征.
已建立的纯度,稳定性和低不确定性使其适合其预期的应用.
这种CRM将提高分析实验室中D-曼尼托测量的准确性,可靠性和可比性.

关键词:

这是一种D-曼尼托尔.经过认证的参考材料.标志性特征的描述.同质性研究是一致性研究.稳定性监控稳定性监控不确定性评估不确定性评估

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