Analysis on inorganic elements in Carthami Flos from different locations by ICP-AES method
Vol 1, Issue 1, 2020
VIEWS - 36 (Abstract)
Abstract
Taking microwave digestion method and inductively coupled plasma-atomic emission spectrometer(ICP-AES) method, 28 kinds of inorganic elements in 40 batches of Carthami Flos(CF) samples(dry tubular flower of Carthamus tinctorius Linn.)From Anhui, Gansu, Jiangsu, Xinjiang, and Yunnan were analyzed. The results show that among heavy metal elements, Cu content in 40 batches of CF samples tested is the highest, and Hg and Pb contents are also high. Hg content in CF samples from Yunnan is significantly higher than that in the samples from other provinces(autonomous regions); in CF samples from different provinces(autonomous regions), differences in Pb and Cu contents are not significant generally, and As and Cd contents are low or undetected. Among major elements, K content in 40 batches of CF samples tested is the highest, P and Mg contents are low, and Na content is the lowest. Na and Mg contents in CF sample from Gansu and P content in the samples from Yunnan and Xinjiang are significantly higher than those in the samples from other provinces(autonomous regions), K content in the samples from Yunnan is significantly lower than those in the samples from other provinces(autonomous regions), and in general, there is no significant difference in the samples from other provinces(autonomous regions). Among essential trace elements, Fe and B contents in 40 batches of CF samples tested are high, and Ni content is the lowest. Cr content in CF samples from Xinjiang and Gansu is high, Mn, Fe, Ni and Sr contents in the samples from Gansu and Zn and B contents in the samples from Anhui are the highest; cr, Mn, Fe and Ni contents in the samples from Jiangsu, Zn content in the samples from Gansu, and Sr and B contents in the samples from Yunnan are the lowest. The results of cluster analysis and principal component analysis show that CF samples from the same province(autonomous region) are clustered well, in which, CF samples from Anhui and Jiangsu are cluster firstly, the samples from Gansu and Xinjiang are close, while the samples from Yunnan are far away from those from other provinces(autonomous regions). This study establishes a rapid and accurate method for determining inorganic elements in CF, and it is suggested that there are certain differences in contents of inorganic elements in CF samples from different locations.
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