Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Vincent S. Pagnotti"'
Autor:
Christopher B. Lietz, Ken Mackie, Joshua L. Fischer, Beixi Wang, Khoa Hoang, Charles N. McEwen, Alicia L. Richards, Sara Madarshahian, Santosh Karki, Milan Pophristic, Vincent S. Pagnotti, Efstathios A. Elia, Sarah Trimpin, Darrell D. Marshall, Corinne A. Lutomski, I-Chung Lu, Anil Kumar Meher, Tarick J. El-Baba, James Wager-Miller, Ellen D. Inutan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b227f4c1757824827bc722a999588ed2
https://doi.org/10.1002/rcm.8829/v2/response1
https://doi.org/10.1002/rcm.8829/v2/response1
Autor:
I-Chung Lu, Anil Kumar Meher, Beixi Wang, Darrell D. Marshall, Khoa Hoang, Alicia L. Richards, Ken Mackie, Sarah Trimpin, Efstathios A. Elia, Joshua L. Fischer, Charles N. McEwen, James Wager-Miller, Vincent S. Pagnotti, Ellen D. Inutan, Sara Madarshahian, Milan Pophristic, Christopher B. Lietz, Santosh Karki, Corinne A. Lutomski, Tarick J. El-Baba
Publikováno v:
Rapid communications in mass spectrometry : RCMREFERENCES. 35
Rationale The developments of new ionization technologies based on processes previously unknown to mass spectrometry (MS) have gained significant momentum. Herein we address the importance of understanding these unique ionization processes, demonstra
Autor:
Khoa Hoang, Shubhashis Chakrabarty, Charles N. McEwen, Vincent S. Pagnotti, Beixi Wang, Madeline A. Fenner, Sarah Trimpin
Publikováno v:
Analytical Chemistry. 89:4798-4802
Electrospray ionization inlet (ESII) combines positive aspects of electrospray ionization (ESI) and solvent-assisted ionization (SAI). Similar to SAI, the analyte solution is directly introduced into a heated inlet tube linking atmospheric pressure a
Publikováno v:
Analytical Chemistry. 86:7343-7350
Introducing water or methanol containing a low concentration of volatile or nonvolatile analyte into an inlet tube cooled with dry ice linking atmospheric pressure and the first vacuum stage of a mass spectrometer produces gas-phase ions even of smal
Autor:
Sarah Trimpin, Ellen D. Inutan, Charles N. McEwen, Shubhashis Chakrabarty, Vincent S. Pagnotti
Publikováno v:
Journal of the American Society for Mass Spectrometry. 24:1102-1107
Matrix assisted ionization of nonvolatile compounds is shown not to be limited to vacuum conditions and does not require a laser. Simply placing a solution of analyte dissolved with a suitable matrix such as 3-nitrobenzonitrile (3-NBN) or 2,5-dihydro
Publikováno v:
Journal of the American Society for Mass Spectrometry. 24:186-192
Solvent Assisted Ionization Inlet (SAII) produces ions in a heated inlet to a mass spectrometer from aqueous and aqueous/organic solutions with high sensitivity. However, the use of acid modifiers, which typically aids electrospray ionization, genera
Publikováno v:
Analytical Chemistry. 84:6828-6832
Combining electrospray ionization (ESI) and solvent assisted inlet ionization (SAII) provides higher ion abundances over a wide range of concentrations for peptides and proteins than either ESI or SAII. In this method, a voltage is applied to a union
Autor:
Christopher B. Lietz, Sarah Trimpin, Charles N. McEwen, Ellen D. Inutan, Beixi Wang, Jing Li, Diana Sardelis, Vincent S. Pagnotti, Andrew F. Harron
Publikováno v:
Journal of the American Society for Mass Spectrometry. 23:1644-1660
Mechanistic arguments relative to matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) address observations that predominately singly charged ions are detected. However, recently a matrix assisted laser ablation method, laserspr
Autor:
Charles N. McEwen, J. Richard Smith, Benedict R. Capacio, Richard J. Lawrence, Vincent S. Pagnotti, Frank Zydel
Publikováno v:
Drug Testing and Analysis. 4:308-311
Exposures to organophosphorus nerve agents (OPNA) remain a threat to both civilian and military populations. Verification of exposures typically involves determinations of urinary metabolites or adducted proteins in blood. Urinary alkyl methylphospho
Publikováno v:
Rapid Communications in Mass Spectrometry. 26:887-892
RATIONALE Steroids can be injected to behave as therapeutic agents to promote muscle growth and strength. Areas of concern include synthetic steroids in consumer meat and milk products and the presence of anabolic steroids in athletes. Here we demons