1
|
Seto Y, Sekiguchi H, Maruko H, Yamashiro S, Sano Y, Takayama Y, Sekioka R, Yamaguchi S, Kishi S, Satoh T, Sekiguchi H, Iura K, Nagashima H, Nagoya T, Tsuge K, Ohsawa I, Okumura A, Takada Y, Ezawa N, Watanabe S, Hashimoto H. Sensitive and Comprehensive Detection of Chemical Warfare Agents in Air by Atmospheric Pressure Chemical Ionization Ion Trap Tandem Mass Spectrometry with Counterflow Introduction. Anal Chem 2014; 86:4316-26. [DOI: 10.1021/ac500042r] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasuo Seto
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Hiroshi Sekiguchi
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Hisashi Maruko
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Shigeharu Yamashiro
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Yasuhiro Sano
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Yasuo Takayama
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Ryoji Sekioka
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Shintaro Yamaguchi
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Shintaro Kishi
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Takafumi Satoh
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Hiroyuki Sekiguchi
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Kazumitsu Iura
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Hisayuki Nagashima
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Tomoki Nagoya
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Kouichiro Tsuge
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Isaac Ohsawa
- National Research Institute of Police Science, Kashiwa, Chiba 277-0882, Japan
| | - Akihiko Okumura
- Central
Research Laboratory, Hitachi, Ltd., Kokubunji, Tokyo 185-8601, Japan
| | - Yasuaki Takada
- Central
Research Laboratory, Hitachi, Ltd., Kokubunji, Tokyo 185-8601, Japan
| | - Naoya Ezawa
- Defense
Systems Company, Hitachi, Ltd., Chiyoda, Tokyo 101-8608, Japan
| | - Susumu Watanabe
- Hitachi High-Tech Solutions Corporation, Mito, Ibaraki 319-0316, Japan
| | - Hiroaki Hashimoto
- Hitachi High-Tech Solutions Corporation, Mito, Ibaraki 319-0316, Japan
| |
Collapse
|
2
|
Hubert-Roux M, Bounoure F, Skiba M, Bozec P, Churlaud F, Lange CM. Fragmentation pathways of metopimazine and its metabolite using ESI-MS(n), HR-MS and H/D exchange. JOURNAL OF MASS SPECTROMETRY : JMS 2010; 45:1121-1129. [PMID: 20690157 DOI: 10.1002/jms.1790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Metopimazine (MPZ) is a phenothiazine derivative used to prevent emesis during chemotherapy where few structural analysis of the aforementioned compound have been described in the literature. Thus, this work reports, for the first time, the detailed study of fragmentation pathways of MPZ and its metabolite (AMPZ) using electrospray ionization (EI) with multistage mass spectrometry (ESI-MS(n)) in positive-ion mode. The structures of 21 product ions were identified and their accurate masses were determined using high resolution mass spectrometry (HRMS) experiments. Characteristic product ions of these two phenothiazine derivatives are more particularly displayed along with differences between their relative abundances and their structures checked by H/D exchange experiments.
Collapse
|
3
|
Hart KJ, Wade AP, Nourse BD, Enke CG. Evaluation of automatically generated substructure identification rules from tandem mass spectra. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 1992; 3:169-180. [PMID: 24242885 DOI: 10.1016/1044-0305(92)87050-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/1990] [Revised: 09/25/1991] [Accepted: 09/25/1991] [Indexed: 06/02/2023]
Abstract
Substructure identification rules for phenothiazine and barbiturate substructures were generated by using a new version of the Method for Analyzing Patterns in Spectra (MAPS) software. This software uses tandem mass spectra and known substructure content of reference compounds to provide "feature-combination" rules. A feature-combination is a series of tandem mass spectral features which are completely unique to compounds containing a specified substructure. The current reference databases contain over 11,000 daughter spectra of 100 compounds acquired at two different collision gas pressures (i.e., single- and multiple-collision conditions). The results of rule evaluation procedures are presented and include a comparison of the spectral features developed in rule generation to those identified in documented fragmentation pathways of the indicated substructure. Two potential sources of error due to spectral feature and substructure "cross-correlation" were identified. If errors occur, they can be detected by calculating cross-correlation coefficients and edited from the rules. A beneficial cross-correlation involving feature-combinations was also discovered. The rules obtained by using single- and multiple-collision data were further evaluated by applying them to tandem mass spectra of 20 test compounds (compounds not in the reference database). The results of these evaluations give a good indication of the utility of the rules for use in an automated structure elucidation system for tandem mass spectrometry data.
Collapse
Affiliation(s)
- K J Hart
- Department of Chemistry, Michigan State University, 48824, East Lansing, MI
| | | | | | | |
Collapse
|