Analysis on capability of mineral element test in 48 institutions of disease control and prevention of provincial and provincial cities of China
DU Yu-ping
SUN Li-cui
REN Shuo
DONG Zhe
LI Meng-yi
WAN li-kui
Abstract：Objective To verify the ability of testing mineral elements in milk powder among 48 disease control institutions of provincial level and provincial capital in China, understand the technical ability of detection of them and provide the basis for promoting the construction of nutrition laboratory network. Methods The capability verification samples were prepared and distributed by National Institute of Food and Drug Control ( NIFDC) to assess the ability of 8 mineral elements ( K, Ca, Na, mg, Fe, Zn, P, Cu). Compared with the certified reference value of CRM, the specified value of the capability verification sample was calibrated, the relative deviation between the measured result and the specified value was calculated and evaluated according to the deviation guidance range. Results A total of 48 agencies participated in the proficiency testing, and 60.4％ ( 29/48) of them belonged to the provincial CDCs and 33. 3％ ( 16/48) of them belonged to provincial capital city CDCs.Of the 47 CDCs that feedback results, 76. 6％ ( 36/47) of them completed the testing of all 8 elements items, and 24 labs were satisfied with the results, accounted for 51. 1％. The satisfaction rate for the single element was more than 90％. Conclusion The ability to detect the single element in the laboratories is better than expected, but it is still necessary to strengthen quality control and improve the comprehensive detection abilities for some of the laboratories.
Keywords：CDClaboratory test abilitymineral elementcapability verificationcertified reference material (CRM)
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 490-492 )