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  • Title: [Gas chromatography with dual nitrogen-phosphorus detection and flame ionization detection for screening abuse drugs].
    Author: Sun YJ, Wu MT, Zhuo XY, Shen BH, Shen M.
    Journal: Fa Yi Xue Za Zhi; 2000 May; 16(2):81-3, 128. PubMed ID: 12536456.
    Abstract:
    A dual-detection Gas chromatographic method for screening out abuse drugs is described. A single capillary separation column is connected to a nitrogen-phosphorus detection (NPD) and a flame ionization detection (FID) by an Y-connector. The ratio responded by NPD/FID is influenced by operational conditions. But the relative ratio is not influenced when carbetane is used as a reference. The ratio and the relative ratio can be used to screening abuse drugs.
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