Negative Reagent Ions for Real Time Detection Using SIFT-MS
Direct analysis techniques have greatly simplified analytical methods used to monitor analytes at trace levels in air samples. One of these methods, Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS), has proven to be particularly effective because of its speed and ease of use. The range of analytes...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-02-01
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| Series: | Environments |
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| Online Access: | http://www.mdpi.com/2076-3298/4/1/16 |
| _version_ | 1811184540997124096 |
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| author | David Hera Vaughan S. Langford Murray J. McEwan Thomas I. McKellar Daniel B. Milligan |
| author_facet | David Hera Vaughan S. Langford Murray J. McEwan Thomas I. McKellar Daniel B. Milligan |
| author_sort | David Hera |
| collection | DOAJ |
| description | Direct analysis techniques have greatly simplified analytical methods used to monitor analytes at trace levels in air samples. One of these methods, Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS), has proven to be particularly effective because of its speed and ease of use. The range of analytes accessible using the SIFT-MS technique has been extended by this work as it introduces five new negatively charged reagent ions (O−, OH−, O2−, NO2−, and NO3−) from the same microwave powered ion source of moist air used to generate the reagent ions traditionally used (H3O+, NO+, and O2+). Results are presented using a nitrogen carrier gas showing the linearity with concentration of a number of analytes not readily accessible to positive reagent ions (CO2 from ppbv to 40,000 ppmv, sulfuryl fluoride and HCl). The range of analytes open to the SIFT-MS technique has been extended and selectivity enhanced using negative reagent ions to include CCl3NO2, SO2F2, HCN, CH3Cl, PH3, C2H4Br2, HF, HCl, SO2, SO3, and NO2. |
| first_indexed | 2024-04-11T13:13:54Z |
| format | Article |
| id | doaj.art-a681ea37f9584b7381ad0aa3d68dc009 |
| institution | Directory Open Access Journal |
| issn | 2076-3298 |
| language | English |
| last_indexed | 2024-04-11T13:13:54Z |
| publishDate | 2017-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Environments |
| spelling | doaj.art-a681ea37f9584b7381ad0aa3d68dc0092022-12-22T04:22:27ZengMDPI AGEnvironments2076-32982017-02-01411610.3390/environments4010016environments4010016Negative Reagent Ions for Real Time Detection Using SIFT-MSDavid Hera0Vaughan S. Langford1Murray J. McEwan2Thomas I. McKellar3Daniel B. Milligan4Syft Technologies Ltd., 3 Craft Pl, Christchurch 8242, New ZealandSyft Technologies Ltd., 3 Craft Pl, Christchurch 8242, New ZealandSyft Technologies Ltd., 3 Craft Pl, Christchurch 8242, New ZealandSyft Technologies Ltd., 3 Craft Pl, Christchurch 8242, New ZealandSyft Technologies Ltd., 3 Craft Pl, Christchurch 8242, New ZealandDirect analysis techniques have greatly simplified analytical methods used to monitor analytes at trace levels in air samples. One of these methods, Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS), has proven to be particularly effective because of its speed and ease of use. The range of analytes accessible using the SIFT-MS technique has been extended by this work as it introduces five new negatively charged reagent ions (O−, OH−, O2−, NO2−, and NO3−) from the same microwave powered ion source of moist air used to generate the reagent ions traditionally used (H3O+, NO+, and O2+). Results are presented using a nitrogen carrier gas showing the linearity with concentration of a number of analytes not readily accessible to positive reagent ions (CO2 from ppbv to 40,000 ppmv, sulfuryl fluoride and HCl). The range of analytes open to the SIFT-MS technique has been extended and selectivity enhanced using negative reagent ions to include CCl3NO2, SO2F2, HCN, CH3Cl, PH3, C2H4Br2, HF, HCl, SO2, SO3, and NO2.http://www.mdpi.com/2076-3298/4/1/16Selected Ion Flow TubeVOCsSIFT-MSnegative reagent ionsacid gases |
| spellingShingle | David Hera Vaughan S. Langford Murray J. McEwan Thomas I. McKellar Daniel B. Milligan Negative Reagent Ions for Real Time Detection Using SIFT-MS Environments Selected Ion Flow Tube VOCs SIFT-MS negative reagent ions acid gases |
| title | Negative Reagent Ions for Real Time Detection Using SIFT-MS |
| title_full | Negative Reagent Ions for Real Time Detection Using SIFT-MS |
| title_fullStr | Negative Reagent Ions for Real Time Detection Using SIFT-MS |
| title_full_unstemmed | Negative Reagent Ions for Real Time Detection Using SIFT-MS |
| title_short | Negative Reagent Ions for Real Time Detection Using SIFT-MS |
| title_sort | negative reagent ions for real time detection using sift ms |
| topic | Selected Ion Flow Tube VOCs SIFT-MS negative reagent ions acid gases |
| url | http://www.mdpi.com/2076-3298/4/1/16 |
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