Purity Determination of NaNO_2 and Assessment of Uncertainty
- VernacularTitle:亚硝酸钠纯度的测定及其不确定度的评定
- Author:
Juan SHEN
;
Yongxue LI
;
Jiangang WU
;
Fei MA
;
Peng ZHAO
;
Jiange JIA
- Publication Type:Journal Article
- Keywords:
NaNO2;
purity determination;
uncertainty
- From:
Chinese Medical Equipment Journal
2003;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the purity of sodium nitrite(NaNO2) using in stray light standard substance which was applied to check semiautomatic clinical chemistry analyzer.Methods Titration was used to determine the purity of NaNO2,the uncertainty of the purity was assessed,and a parallel test was used to validate the uncertainty.Results The purity of NaNO2 was 99.81%,and its uncertainty was 0.86%.Conclusion The uncertainty of the purity passes the validation,it shows that the purity test is credible,and its uncertainty assessment is logical.
