In this study,a method was developed for simultaneous determination of twenty kinds of mineral elements in Chenopodium quinoa Willd.(CQW) from Haixi Prefecture different regions of Qinghai by inductively coupled plasma-mass spectrometry (ICP-MS).The contents of these mineral elements were selected to compare,analyze and evaluate,providing a basis for the development and utilization of the CQW reprocessed products in Qinghai Plateau.SPSS 19.0 was used to conduct multiple comparative analysis,principal component analysis and comprehensive evaluation of mineral elements between the CQW in seven different locations from three Haixi Prefecture regions,and the CQW from Qinghai Haixi Prefecture regions and other domestic and foreign producing areas were also made.The results showed that there were significant differences (P<0.05) in Na,B,Al,V,Ni,Se and Ba of the CQW from different Haixi Prefecture regions of Qinghai,and there were significant differences P<0.05) in Na,B,Al,V,Se,Sr,Mo and Ba of the CQW between Qinghai Haixi Prefecture regions and other domestic and foreign producing areas.The results of principal component analysis showed that the CQW in seven different locations from three Haixi Prefecture regions of Qinghai was mainly divided into two categories,and the quality of mineral elements were correlated with local altitude;the CQW of different colors in Haixi Prefecture regions of Qinghai and other domestic and foreign producing areas was mainly divided into five categories,and the quality of mineral elements were not only related to local altitude,but may also be related to introduced quinoa strains,breeding and genetic improvement,growing environment and ecological adaptability.After comprehensive evaluation,the quality of mineral elements in the CQW of Dagele Township,Geermu City and Wutumeiren Township,Geermu City from Haixi Prefecture regions of Qinghai were relatively better,respectively.Compared with the CQW of different colors from other domestic and foreign producing areas,there were relatively better quality of mineral elements in the CQW of pure white,a double colors of red and white from Haixi Prefecture regions of Qinghai,and the CQW with a three colors of red,white and black from Peru puno.This study can provide a basis for quality control of the CQW in Haixi Prefecture regions of Qinghai with rich in mineral elements.

"> Chenopodium quinoa Willd., Haixi Prefecture different regions of Qinghai, mineral elements, principal component analysis, comprehensive evaluation