Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry

A simple modification converts an electrospray ion source to an ambient-pressure helium plasma ionization source without the need of additional expensive hardware. Peaks for active ingredients were observed in the spectra recorded from intact pharmaceutical tablets placed in this source. A flow of h...

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Main Authors: Athula B. Attygalle, Freneil B. Jariwala, Julius Pavlov, Zhihua Yang, Jason A. Mahr, Mabel Oviedo
Format: Article
Language:English
Published: Elsevier 2014-06-01
Series:Journal of Pharmaceutical Analysis
Online Access:http://www.sciencedirect.com/science/article/pii/S209517791300107X
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author Athula B. Attygalle
Freneil B. Jariwala
Julius Pavlov
Zhihua Yang
Jason A. Mahr
Mabel Oviedo
author_facet Athula B. Attygalle
Freneil B. Jariwala
Julius Pavlov
Zhihua Yang
Jason A. Mahr
Mabel Oviedo
author_sort Athula B. Attygalle
collection DOAJ
description A simple modification converts an electrospray ion source to an ambient-pressure helium plasma ionization source without the need of additional expensive hardware. Peaks for active ingredients were observed in the spectra recorded from intact pharmaceutical tablets placed in this source. A flow of heated nitrogen was used to thermally desorb analytes to gas phase. The desorption temperatures were sometimes as low as 50 °C. For example, negative-ion spectra recorded from an aspirin tablet showed peaks at m/z 137 (salicylate anion) and 179 (acetylsalicylate anion) which were absent in the background spectra. The overall ion intensity increased as the desorption gas temperature was elevated. Within the same acquisition experiment, both positive- and negative-ion signals for acetaminophen were recorded from volatiles emanating from Tylenol tablets by switching the polarity of the capillary back and forth. Moreover, different preparations of acetaminophen tablets could be distinguished by their ion-intensity thermograms. Keywords: Helium plasma ionization, Pharmaceutical tablets, HePI, DART, DESI
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spelling doaj.art-477f315fcadd4ee8bb42baf1a21451452022-12-21T23:36:00ZengElsevierJournal of Pharmaceutical Analysis2095-17792014-06-0143166172Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometryAthula B. Attygalle0Freneil B. Jariwala1Julius Pavlov2Zhihua Yang3Jason A. Mahr4Mabel Oviedo5Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA; Corresponding author. Tel.: +1 201 216 5575; fax: +1 201 216 8240.Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USACenter for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USACenter for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USAMontville Township High School, 100 Horseneck Road, Montville, NJ 07045, USANorth Bergen High School, 7417 Kennedy Boulevard, North Bergen, NJ 07047, USAA simple modification converts an electrospray ion source to an ambient-pressure helium plasma ionization source without the need of additional expensive hardware. Peaks for active ingredients were observed in the spectra recorded from intact pharmaceutical tablets placed in this source. A flow of heated nitrogen was used to thermally desorb analytes to gas phase. The desorption temperatures were sometimes as low as 50 °C. For example, negative-ion spectra recorded from an aspirin tablet showed peaks at m/z 137 (salicylate anion) and 179 (acetylsalicylate anion) which were absent in the background spectra. The overall ion intensity increased as the desorption gas temperature was elevated. Within the same acquisition experiment, both positive- and negative-ion signals for acetaminophen were recorded from volatiles emanating from Tylenol tablets by switching the polarity of the capillary back and forth. Moreover, different preparations of acetaminophen tablets could be distinguished by their ion-intensity thermograms. Keywords: Helium plasma ionization, Pharmaceutical tablets, HePI, DART, DESIhttp://www.sciencedirect.com/science/article/pii/S209517791300107X
spellingShingle Athula B. Attygalle
Freneil B. Jariwala
Julius Pavlov
Zhihua Yang
Jason A. Mahr
Mabel Oviedo
Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry
Journal of Pharmaceutical Analysis
title Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry
title_full Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry
title_fullStr Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry
title_full_unstemmed Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry
title_short Direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization (HePI) mass spectrometry
title_sort direct detection and identification of active pharmaceutical ingredients in intact tablets by helium plasma ionization hepi mass spectrometry
url http://www.sciencedirect.com/science/article/pii/S209517791300107X
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