Objective: To investigate the effect of trace element lithium on the occurrence of endemic gaiter.
目的：研究碘缺乏病流行地区除严重缺碘外，微量元素提对甲状腺肿的影响。
Using chemical addition method to calibrate absorption effect, trace element in human hair are analyzed with X-ray fluorescence (XRF).
通过化学加入法校正吸收效应，采用X射线荧光分析法（XRF）分析人发样品，确定人发中微量元素的含量。
Objective: To discuss the relationship between the content of trace element in Fanbai Grass and its effect of reducing blood sugar.
目的：探讨翻白草中微量元素的含量与降血糖作用的关系。
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