A man-portable, photoionization time-of-flight mass spectrometer
A man-portable, photoionization time-of-flight mass spectrometer
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DOI：
10.1002/1520-6521(2000)4:4
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发表时间：
2000-01-01
期刊：
影响因子：
--
通讯作者：
Hanold, KA
中科院分区：
文献类型：
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作者：
Syage, JA;Hanning-Lee, MA;Hanold, KA
本文讨论了一个30磅的现场便携式化学分析系统的检测能力相媲美的台式系统的可行性论证。Syagen构建并操作了一个原型仪器，使用一种新型的大气采样光电离源耦合到四极离子阱，飞行时间质谱仪（QitTof）。减少重量和功率的关键是开发笔记本电脑数据采集系统和新的低功率离子阱射频源。检测限为10-100 ppb和5-50 pg的各种化合物，包括膦酸酯和芳烃。空气和液体采样器的开发和显示具有1-10秒的响应时间，取决于操作模式。QitTof分析仪和处理器可以记录200 Hz的质谱，使其适用于快速气相色谱。(C)John Wiley & Sons，Inc.
This article discusses a feasibility demonstration for a 30-lb field-portable chemical analysis system with detection capability comparable to that of a benchtop system. Syagen constructed and operated a prototype instrument with the use of a novel atmospheric sampling photoionization source coupled to a quadrupole-ion-trap, time-of-flight mass spectrometer (QitTof). The keys to reducing weight and power were the development of a notebook-computer data-acquisition system and a new low-power ion-trap RF source. Detection limits of 10-100 ppb and 5-50 pg were measured for a variety of compounds including phosphonates and aromatics. An air and liquid sampler was developed and shown to have a response time of 1-10 s, depending on mode of operation. The QitTof analyzer and processor can record mass spectra at 200 Hz, making it suitable for fast gas chromatography. (C) 2000 John Wiley & Sons, Inc.