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CN1690704A 固相萃取和质谱联用测定减压瓦斯油烃族组成的方法 失效 - 权利终止

固相萃取和质谱联用测定减压瓦斯油烃族组成的方法
摘要：
一种固相萃取和质谱联用测定减压瓦斯油烃族组成的方法，包括将减压瓦斯油通过固相萃取分成饱和烃、芳香烃和胶质三个组分，通过称重或气相色谱分析测出三种组分的相对含量，用质谱测定所得的饱和烃和芳香烃组分的烃类组成，再根据饱和烃和芳香烃的相对含量用归一法计算减压瓦斯油的烃族组成，所述固相萃取所用的固定相为二氧化硅，其比表面积为450－750米2/克，孔体积为0.35－0.55毫升/克，孔径为290－350纳米的孔占总孔体积的50－70％。该方法测定减压瓦斯油用样量少，快速而准确。
摘要（英）：

A composition measurement method for hydrocarbon of vacuum gas oil by solid phase extraction combination mass spectrum comprises that separate the oil to three parts of saturated hydrocarbon, arene and gum by solid phase extraction, analyze their corresponding content by weighing or gas chromatography; detect makeup of saturated hydrocarbon and arene by mass spectrum; use normalization method to compute hydrocarbon composition of vacuum gas oil according to corresponding content of saturated hydrocarbon and arene; stationary phase of aforementioned solid phase extraction is silicon dioxide with specific surface is 450~750m2g, pore volume is 0.35~0.55ml/g, and pore with aperture 290~350nm takes up 50~70% of total pore volume. The method need less oil sample, and is quick and accurate.

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