Molecular ion emission from superposed langmuir–blodgett films of different molecules in MeV ion induced desorption. Possibility of emission from a conical volume

Bolbach, G.; Della‐Negra, S.; Deprun, C.; Beyec, Y. Le; Standing, K. G.; Wien, K.

doi:10.1002/rcm.1290010204

Cited by 32 publications

(2 citation statements)

References 8 publications

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“…This instrumental configuration was first applied to large-molecule MS by Macfarlane and Torgerson (2), who used a plasma desorption ion source. Many investigators subsequently used similar designs with a variety of electrode configurations, ion sources, and detectors (16)(17)(18). The acceleration voltages are typically 1-30 kV (positive or negative polarity), and the flight pathlengths range from 0.1 to 3 m.…”

mentioning

confidence: 99%

Matrix-assisted laser desorption/ionization mass spectrometry of biopolymers

Hillenkamp¹,

Karas²,

Beavis³

et al. 1991

Anal. Chem.

1,096

787

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mentioning

confidence: 99%

Matrix-assisted laser desorption/ionization mass spectrometry of biopolymers

Hillenkamp¹,

Karas²,

Beavis³

et al. 1991

Anal. Chem.

1,096

787

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“…More specifically, only 106-106 primary ions are needed to generate a useful mass spectrum on a sample spot of 3-4 mm (11). Assuming that 1000 atoms are emitted per fission fragment (12) from the top 10 layers (13), then approximately 10"4%-10's% of the surface is consumed. The applicability of PDMS for the characterization of glass surface treatments has been demonstrated previously (14).…”

mentioning

confidence: 99%

Surface characterization of a National Bureau of Standards glass reference material by californium-252 particle desorption mass spectrometry

Summers¹,

Beug-Deeb²,

Schweikert³

1988

Anal. Chem.

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Glucose glass films: A matrix for mass spectrometry that mimics aqueous solution behavior

Song

Macfarlane

1995

J. Mass Spectrom.

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This study demonstrates that an amorphous film of glucose has many of the features of water as a medium for solvating ions and, at low concentrations, maintaining ion pair separation. Aqueous solutions of glucose containing dissolved salts are evaporated to form a homogeneous glucose glass where the distribution of the solute in solution is preserved in the evaporated glass film. Cluster ions form in aqueous solutions at high solute concentration, and glucose films made from these solutions form gas-phase cluster ions when the film is excited by a high energy density pulse. These cluster ions do not form in dilute solutions and are not present in the mass spectrum of ions desorbd from films prepared from these solutions. Non-polar ions concentrate at the surface of aqueous solutions owing to the hydrophobic interaction and glucose glass films prepared from these solutions show, by mass spectrometry, that these features are retained in the glucose film. The salts studied include KCI, NaBr, LiCF,SO, , (tert-butyl),NI and (C,HS),NBF,. The concentration of the salt is the important variable in the study and ranges from a mole fraction of O.l-lO-,.For non-polar ions, the abundance of the molecular ion is not significantly changed over a wide range of dilutions.

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Molecular ion emission from superposed langmuir–blodgett films of different molecules in MeV ion induced desorption. Possibility of emission from a conical volume

Cited by 32 publications

References 8 publications

Matrix-assisted laser desorption/ionization mass spectrometry of biopolymers

Matrix-assisted laser desorption/ionization mass spectrometry of biopolymers

Surface characterization of a National Bureau of Standards glass reference material by californium-252 particle desorption mass spectrometry

Glucose glass films: A matrix for mass spectrometry that mimics aqueous solution behavior

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