Rapid Production of Graphite without Contamination for Biomedical AMS
作者： John S. Vogel
DOI: 10.1017/S0033822200063529
关键词: Carbon 、 Tube (fluid conveyance) 、 Orders of magnitude (temperature) 、 Combustion 、 Analytical chemistry 、 Graphite 、 Chemistry 、 Muffle furnace 、 Zinc 、 Compounds of carbon
摘要: The application of AMS to the detection [sup 14]C makes possible a new class sensitive experiments in molecular biology. Such inherently produce large numbers samples for determination biological variability interactions. vary concentration over many orders magnitude. author added TiH[sub 2] aid reduction CO[sub by zinc sealed tube reproducibly make graphite without sample cross-contamination. is transferred from combustion reaction through disposable plastic manifold. tubes are heated single-reaction temperature muffle furnace. process complete within 5 h. Bulk isotopic fractionation finished less than 0.5%.
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