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- W3149954511 abstract "In order to verify the laser induced breakdown spectroscopy( LIBS) is feasible for the detection of heavy metal elements in Chinese traditional medicine,using coptis chinensis,aconite root and poria cocos as detection object,a series of Cu element samples with different concentrations were prepared. 1 064 nm Nd ∶ YAG solid pulse laser was used as the excitation source,the eight channel spectrometer was used for spectral data acquisition. Cu 324. 7 nm was selected as characteristic spectral line,and the optimal delay time was determined for 0. 5 μs. According to the different substrate conditions of coptis chinensis,aconite root and poria cocos,the appropriate internal standard parameters were selected,and the linear degree was 0. 986,0. 931,0. 975,respectively. The results were compared with the results of direct calibration. The experiment results show that the internal standard method can improve fitting accuracy and LIBS can be used for the rapid detection of heavy metal Cu pollution of traditional Chinese medicine." @default.
- W3149954511 created "2021-04-13" @default.
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- W3149954511 date "2016-01-01" @default.
- W3149954511 modified "2023-09-23" @default.
- W3149954511 title "Laser Induced Breakdown Spectros Copy of Cu in Coptis Chinensis,Aconite Root and Poria Cocos" @default.
- W3149954511 hasPublicationYear "2016" @default.
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