Study on the distribution of trace elements in liquors with brand based on the principal component analysis

In this work,the content of trace elements in Swellfun liquors were determined by inductively coupled plasma atomic emission spectrometry(ICP-AES) and its distribution characteristics in Swellfun liquors were preliminary Studied. At the same time,the principal component analysis(PCA) was carried out on the dropdimensional processing of the content of Swellfun liquor samples. Results demonstrated that the content of trace elements in Swellfun liquors showed Ca >Mg>Na>Al>K>Fe>Mn>Se>Cu>Ni,the content of calcium and magnesium in Swellfun liquors were much higher than that of other brand of liquors,the content of Sodium was1.530 ~5.828mg/L,which was more stable in Swellfun liquors,and the cumulative variance contribution rate of the extracted three principal components was 87.38%. Meanwhile,the Principal component comprehensive scores were between 1.5 and 3.5,and principal components plot of liquor samples was obtained. It implicated the significant distribution characteristic of trace elements in swellfun liquors. The methodology of this paper could provide theoretical basis for the study on the adulteration identification of Swellfun liquors.