{"title":"Soft Ionization of Metallo-Mefenamic Using Electrospray Ionization Mass Spectrometry","authors":"H. Abdelhamid, Hui-Fen Wu","doi":"10.5478/MSL.2015.6.2.43","DOIUrl":null,"url":null,"abstract":"Detection of mefenamic acid (M, non-steroidal anti-inflammatory drug, NSAIDs) and its metallodrug was investi- gated using electrospray ionization mass spectrometry (ESI-MS) and fluorescence spectroscopy. ESI-MS data (500 µL, 1×10-3 M) revealed high detection sensitivity for the drug and metallodrug. ESI-MS spectra revealed peaks at 242, 580, and 777 Da cor- responding to (M+H)+, (63Cu(M-H)2(H2O)2+H)+, and (56Fe(M-H)3+H)+, respectively. The metal:mefenamic ratios of ESI- MS spectra are in complete agreement with the fluorescence spectroscopy results (1:2 for Cu(II) and 1:3 for Fe(III)). ESI is a soft ionization technique that can be used on labile metallo-mefenamic acids and is promising for the detection of these species in environmental samples and biological fluids.","PeriodicalId":18238,"journal":{"name":"Mass Spectrometry Letters","volume":"15 1","pages":"43-47"},"PeriodicalIF":0.4000,"publicationDate":"2015-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"15","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mass Spectrometry Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5478/MSL.2015.6.2.43","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SPECTROSCOPY","Score":null,"Total":0}
引用次数: 15
Abstract
Detection of mefenamic acid (M, non-steroidal anti-inflammatory drug, NSAIDs) and its metallodrug was investi- gated using electrospray ionization mass spectrometry (ESI-MS) and fluorescence spectroscopy. ESI-MS data (500 µL, 1×10-3 M) revealed high detection sensitivity for the drug and metallodrug. ESI-MS spectra revealed peaks at 242, 580, and 777 Da cor- responding to (M+H)+, (63Cu(M-H)2(H2O)2+H)+, and (56Fe(M-H)3+H)+, respectively. The metal:mefenamic ratios of ESI- MS spectra are in complete agreement with the fluorescence spectroscopy results (1:2 for Cu(II) and 1:3 for Fe(III)). ESI is a soft ionization technique that can be used on labile metallo-mefenamic acids and is promising for the detection of these species in environmental samples and biological fluids.
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