Analysis of proficiency test for determination of manganese in drinking water in Shaanxi Province
- VernacularTitle:陕西省饮用水中锰检测能力验证结果分析
- Author:
Yu LIU
1
;
Wenting YUAN
1
;
Caixia WANG
1
;
Guoxia CHENG
1
;
Xiaoling NIE
1
;
Xiaocong LIANG
1
;
Tianlai LI
1
Author Information
- Publication Type:Journal Article
- Keywords: Drinking water; Manganese; Proficiency test; Z-score
- From: Journal of Public Health and Preventive Medicine 2021;32(2):26-29
- CountryChina
- Language:Chinese
- Abstract: Objective To understand and improve the laboratory detection capacity of water manganese in testing organizations of Shaanxi Province． Methods The self-made manganese capacity testing samples were used as the reference in this proficiency testing program. The homogeneity of the samples was tested by single factor analysis of variance. The t-test method was used to evaluate the stability of the samples. The results of manganese in water provided by participant laboratories were analyzed by the robust statistical technique Z-score. Results A total of 136 laboratories participated in the proficiency testing program throughout the province. Among them, 129 laboratories (including retest laboratory) or 94.85% of total participating laboratories obtained satisfactory results. Conclusion The water quality monitoring agencies of our province had shown a strong detection capability for the determination of metal elements in drinking water, which ensures to provide safe water supply to the residents in Shaanxi Province.
