A gas chromatographic method for the determination of methamidophos pesticide residues in the Allium Chinense was established by means of micro chemistry and solid phase extraction techniques.
A new method for chromatographic peak identification by means of peak shape analysis is presented in this paper.
尝试建立了一种通过峰形分析进行色谱定性的方法。
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Methods: Using the medicinal properties, microscopic characteristics, TLC and HPLC chromatographic characterization and other means to identify the two drugs.