4.3 Article

Assessing the environmental ruggedness of paper spray ionization (PSI) coupled to a portable mass spectrometer operated under field conditions

期刊

出版社

ELSEVIER
DOI: 10.1016/j.ijms.2021.116776

关键词

Ambient ionization; Paper spray ionization (PSI); Portable mass spectrometry (MS); Forensics; Drugs of abuse; Field analysis; Environmental ruggedness; SWGDRUG; Validation

资金

  1. National Institute of Justice, Office of Justice Programs, U.S. Department of Justice [2015-IJ-CX-K011, 2017-R2-CX-0 022]

向作者/读者索取更多资源

This study systematically characterized the performance of paper spray ionization-mass spectrometry (PSI-MS) under variable environmental conditions, finding that wind speeds greater than 3 m/s had the most significant impact on PSI-MS spectral attributes, while moderate ambient temperature and %RH produced the best spectral performance.
Significant efforts have went towards coupling portable mass spectrometric systems and ambient ionization methods, with a culminating goal of field-based, point-of-need screening of harmful chemicals. While fieldable, ambient MS methods are an intriguing combination, ruggedness of these ionization methods in regard to naturally-occurring environmental conditions while operating in-situ, such as ambient temperature, relative humidity (RH) and wind, bears further investigation, as such reports are limited. In this work, a systematic characterization of paper spray ionization-mass spectrometry (PSI-MS) performance under variable environmental conditions was undertaken on a field-deployable MS system. Of all conditions, the presence of wind speeds greater than 3 m/s (~7 MPH) was shown to have the most substantial effect on the spectral attributes of signal intensity and duration of the PSI-MS spraying event. Generally, moderate ambient temperature and %RH produced the best spectral performance for PSI-MS. Heat maps were generated from field-collected data across variable temperature and %RH in an effort to inform general PSI-MS performance trends and guide on-site operation by potential users.(c) 2021 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.3
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据