当评价准确度时，可使用有证标准物质；
When evaluating the accuracy, certified reference materials was used.
讨论了研制适用于微分析质控的新一代有证标准物质(CRM)的必要性，以及NAA在新一代CRM认证中的作用。
The necessity of the development of new generation of certified reference materials (CEMs) and the role that NAA will play in the certification of those CRMs are discussed.
讨论了研制适用于微分析质控的新一代有证标准物质(CRM)的必要性，以及NAA在新一代CRM认证中的作用。
The necessity of the development of new generation of certified reference materials (CEMs) and the role that NAA will play in the certification of those CRMs are discussed.
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