氨氮能力验证样品的均匀性和稳定性检验分析

Analysis of Uniformity and Stability Testing for Ammonia Nitrogen Proficiency Test Samples

摘要: 氨氮是重要的环境污染物之一，在水质检测工作中出现频率较高，开展水中氨氮能力验证项目，可以进一步帮助检验检测机构发现管理和技术运作中存在的主要问题，保证实验室检测数据的准确性，推动相关检测能力的提升。本文通过对三个不同浓度水平的样品进行均匀性和稳定性试验，以及能力验证反馈结果后的统计分析，表明三个样品均满足能力验证的要求。只有保证样品的均匀性和稳定性才能确保能力验证的公平有效。

Abstract: Ammonia nitrogen is one of the important environmental pollutants, which occurs frequently in water quality testing. Conducting ammonia nitrogen capacity verification projects in water can further help inspection and testing institutions identify major problems in management and technical operations, ensure the accuracy of laboratory testing data, and promote the improvement of related testing capabilities. This article conducts uniformity and stability tests on three samples with different concentration levels, as well as statistical analysis of the feedback results of capability verification, indicating that all three samples meet the requirements of capability verification. Only by ensuring the uniformity and stability of the samples can the fairness and effectiveness of capability verification be guaranteed.