摘要
依据标准SH/T0684-1999 《分子筛和氧化铝基催化剂中钯含量测定法(原子吸收光谱法)》对贵金属催化剂中钯含量的测定进行了不确定度的评定。在研究中,通过建立数学模型,分析检测结果不确定度的主要来源,并对不确定度的各个分量进行评定,最后计算出了测量结果的合成标准不确定度为0. 0171%,扩展不确定度为0. 034%(取扩展因子k=2),检测贵金属催化剂中的钯含量结果为0. 367%±0. 034%(k=2)。
According to the standard SH/T0684-1999 Determination of Palladium Content in Molecular Sieves and Alumina-based Catalysts (AAS ), the mathematical model was established, the main sources of uncertainty were analyzed, and the components of uncertainty were evaluated. The synthetic standard uncertainty of the measurement result was 0.0171% and extended uncertainty was 0.034%(taking the extension factor k=2 ). The determination of palladium in precious metal catalyst was 0.367%±0.034%(k=2 ).
作者
何崇慧
瞿朝霞
尹玲玲
蒋彩兰
HE Chong-hui;QU Zhao-xia;YIN Ling-ling;JIANG Cai-lan(Lanzhou Chemical Research Centerof Petrachina, Gansu Lanzhou730000, China)
出处
《广州化工》
CAS
2019年第7期117-119,122,共4页
GuangZhou Chemical Industry
关键词
钯
原子吸收
贵金属催化剂
不确定度
palladium
AAS
nobel metal catalyst
uncertaintyevaluation
