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首页> 外文期刊>RSC Advances >Petroleomics via Orbitrap mass spectrometry with resolving power above 1?000?000 at m/z 200
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Petroleomics via Orbitrap mass spectrometry with resolving power above 1?000?000 at m/z 200

机译：通过Orbitrap质谱进行石油化学组学，在m / z 200时分辨力超过1？000？000

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The performance of the high-field MegaOrbitrap Fourier transform mass spectrometer (FT-MS) with electrospray ionization (ESI) was evaluated to perform petroleum sample characterization via classical petroleomics approaches. Pertinent parameters that underpin the main figures of merit, that is, signal to noise ratios, dynamic range, spectral error, scan speed, mass accuracy and mass resolving power = R _(p) , and provide subsidies to develop these analyzers were tested. Comparisons are made with data obtained using the most common petroleomics instrument, which is a Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR MS), that has been used in the last decade in our laboratory for crude oil analysis providing R _(p) of 340?000 at m / z 400 with transients of 3 s duration, and has been extensively demonstrated to fulfill all major requirements for precise petroleomics investigations. The high-field compact MegaOrbitrap mass analyzer, when operated at an R _(p) = 840?000 at m / z 400 ( R _(p) > 1?000?000 at m / z 200) with a detection time of 3 s, was found to be well suited for adequate characterization of crude oil. Accurate class classification and mass accuracy below 1 ppm was obtained leading to proper, comprehensive petroleomics characterization.
机译：评估了具有电喷雾电离（ESI）的高场MegaOrbitrap傅里叶变换质谱仪（FT-MS）的性能，以通过经典的石油化学方法对石油样品进行表征。测试了支持主要性能指标的相关参数，即信噪比，动态范围，光谱误差，扫描速度，质量准确度和质量分辨能力= R _（p），并为开发这些分析仪提供了补贴。使用最常用的石油化学仪器（一种傅立叶变换离子回旋共振质谱仪（FT-ICR MS））获得的数据进行比较，该仪器在过去十年中已在我们的实验室中用于原油分析，提供R_（p ）在340 000 m / z 400的频率下具有3 s的持续时间，并且已被广泛证明满足精确石油化学研究的所有主要要求。当在m / z 400的R _（p）= 840？000（m / z 200的R _（p）> 1？000？000）下运行时，高磁场紧凑型MegaOrbitrap质量分析仪3 s被发现非常适合对原油进行充分表征。获得了准确的分类和低于1 ppm的质量准确度，从而进行了正确的，全面的石油化学表征。

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