Uncertainty Evaluation of Content Determination of Benzoic Acid
- VernacularTitle:苯甲酸含量测定的不确定度评定
- Author:
Fei LUHUA
;
Fei HANYU
- Publication Type:Journal Article
- Keywords:
Benzoic acid;
Content determination;
Uncertainty Evaluation
- From:
China Pharmacist
2015;(2):354-357
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a method for the uncertainty evaluation of the determination of benzoic acid. Methods: The content of benzoic acid was determined by acid-base titration. By constructed mathematics model, the source of the measurement uncer-tainty was analyzed, and the uncertainty components were quantized and combined. Results:The expanded uncertainty of benzoic acid was 0. 36% and the results were expressed as(99. 99 ± 0. 36%,k=2). Conclusion:The mathematics model is reasonable and relia-ble,and can be used in the uncertainty evaluation of content measurement of benzoic acid.
