-
1.发明授权Method of producing molecular profiles of isoparaffins by low emitter current field ionization mass spectrometry 失效通过低发射极电流场电离质谱法生产异链烷烃的分子谱的方法公开(公告)号：US07671328B2
公开(公告)日：2010-03-02
申请号：US11702830
申请日：2007-02-06
CPC分类号： G01N27/62
摘要： The present invention is devoted to an analytical method for directly determining carbon number and molecular weight distributions of isoparaffin mixtures. The analytical means uses low in-scan emitter-current field-ionization mass spectroscopy to substantially reduced or eliminated molecular ion fragmentation for isoparaffins, which allows direct measurement of isoparaffin molecular ions for their distributions. The analytical means is capable of directly characterizing isobutane to C50+ isoparaffins, covering naphtha to gas oil ranges.
摘要翻译： 本发明致力于直接测定异构烷烃混合物的碳数和分子量分布的分析方法。 分析手段使用低扫描发射极 - 电流场电离质谱来显着减少或消除异链烷烃的分子离子断裂，这允许直接测量异链烷烃分子离子用于其分布。 分析手段能够将异丁烷直接表征为C50 +异构烷烃，将石脑油覆盖至瓦斯油范围。
搜索结果
1 条记录 (耗时 0.021 秒)
筛选
AND
AND
过滤
NOT
NOT