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采用原子吸收光谱仪测定微量元素，用气相色谱仪检测药品中的农药残留。为延生护宝膏抗衰老作用机制提供了微量元素方面的依据。
Determination of trace elements by atomic absorption spectrometry, the use of gas chromatography to detect pesticide residues in medicines. It provides the basis of trace elements for the anti-aging mechanism of Yanbao Bao cream.