Leucine and isoleucine in chemical ionization and plasma desorption mass spectrometry: A comparative study

Guy Bouchoux; Sophie Bourcier; Yannik Hoppilliard; Christine Mauriac

doi:10.1002/oms.1210281015

Leucine and isoleucine in chemical ionization and plasma desorption mass spectrometry: A comparative study

Guy Bouchoux, Sophie Bourcier, Yannik Hoppilliard, Christine Mauriac

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Abstract

The NH₃ and CH₄ chemical ionization mass spectra of leucine and isoleucine are compared with their plasma desorption mass spectra. Mass‐analysed ion kinetic energy (MIKE) and collision‐induced dissociation (CID)/MIKE experiments are also presented and the mechanisms of the formation and dissociation of immonium ions [M – CO₂H₂]⁺ are discussed. A comparison between the various ionization techniques reveals that plasma desorption produces pseudo‐molecular ions whose internal energy lies between zero and 300 kJ mol⁻¹.

Original language	English
Pages (from-to)	1064-1072
Number of pages	9
Journal	Journal of Mass Spectrometry
Volume	28
Issue number	10
DOIs	https://doi.org/10.1002/oms.1210281015
Publication status	Published - 1 Jan 1993

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title = "Leucine and isoleucine in chemical ionization and plasma desorption mass spectrometry: A comparative study",

abstract = "The NH3 and CH4 chemical ionization mass spectra of leucine and isoleucine are compared with their plasma desorption mass spectra. Mass‐analysed ion kinetic energy (MIKE) and collision‐induced dissociation (CID)/MIKE experiments are also presented and the mechanisms of the formation and dissociation of immonium ions [M – CO2H2]+ are discussed. A comparison between the various ionization techniques reveals that plasma desorption produces pseudo‐molecular ions whose internal energy lies between zero and 300 kJ mol−1.",

author = "Guy Bouchoux and Sophie Bourcier and Yannik Hoppilliard and Christine Mauriac",

year = "1993",

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doi = "10.1002/oms.1210281015",

language = "English",

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journal = "Journal of Mass Spectrometry",

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T1 - Leucine and isoleucine in chemical ionization and plasma desorption mass spectrometry

T2 - A comparative study

AU - Bouchoux, Guy

AU - Bourcier, Sophie

AU - Hoppilliard, Yannik

AU - Mauriac, Christine

PY - 1993/1/1

Y1 - 1993/1/1

N2 - The NH3 and CH4 chemical ionization mass spectra of leucine and isoleucine are compared with their plasma desorption mass spectra. Mass‐analysed ion kinetic energy (MIKE) and collision‐induced dissociation (CID)/MIKE experiments are also presented and the mechanisms of the formation and dissociation of immonium ions [M – CO2H2]+ are discussed. A comparison between the various ionization techniques reveals that plasma desorption produces pseudo‐molecular ions whose internal energy lies between zero and 300 kJ mol−1.

AB - The NH3 and CH4 chemical ionization mass spectra of leucine and isoleucine are compared with their plasma desorption mass spectra. Mass‐analysed ion kinetic energy (MIKE) and collision‐induced dissociation (CID)/MIKE experiments are also presented and the mechanisms of the formation and dissociation of immonium ions [M – CO2H2]+ are discussed. A comparison between the various ionization techniques reveals that plasma desorption produces pseudo‐molecular ions whose internal energy lies between zero and 300 kJ mol−1.

U2 - 10.1002/oms.1210281015

DO - 10.1002/oms.1210281015

M3 - Article

AN - SCOPUS:84989132324

SN - 1076-5174

VL - 28

SP - 1064

EP - 1072

JO - Journal of Mass Spectrometry

JF - Journal of Mass Spectrometry

IS - 10

ER -

Leucine and isoleucine in chemical ionization and plasma desorption mass spectrometry: A comparative study

Abstract

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