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Dive into the research topics where Adam S. Plaziak is active.

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Featured researches published by Adam S. Plaziak.


Monatshefte Fur Chemie | 1992

Positive/negative liquid secondary ion mass spectrometry ofLn-EDTA (1:1) complexes. Formation of molecular ion adducts with neutral species of the matrix orLn-EDTA

Adam S. Plaziak; Stefan Lis; Marian Elbanowski

SummaryThe mass spectra of 1:1 complexes ofEDTA with lanthanide cations (Ln=Sm, Eu, Gd, Tb or Dy) upon positive/negative LSIMS are presented. In glycerol used as a matrix, adduct-ions such as [M+H]+, [M+H+nGly]+, [2M+H]+, [2M+H+Gly]+ (positive LSIMS) or [M-H]−, [M-H+nGly]−, [2M-H]−, [2M-H+Gly]− (negative LSIMS), wheren=1−3, are formed. Reactions leading to the formation of adduct-ions are suggested.ZusammenfassungDie Massenspektren von 1:1-Komplexen vonEDTA mit Lanthanidenkationen (Ln=Sm, Eu, Gd, Tb oder Dy) mittels positiver/negativer LSIMS werden präsentiert. In Glycerin als Matrix bilden sich Adduktionen wie [M+H]+, [M+H+nGly]+, [2M+H]+, [2M+H+Gly]+ (positive LSIMS) oder [M-H]−, [M-H+nGly]−, [2M-H]−, [2M-H+Gly]− (negative LSIMS), wobein=1−3. Es werden Reaktionen vorgeschlagen, die zur Bildung von Adduktionen führen.


Journal of Mass Spectrometry | 1989

Stabilization of even‐electron ions in 4‐amino‐substituted cytosines. Appearance of the strong ortho effect between an aryl substituent and the pyrimidinyl ring

Adam S. Plaziak; Jaroslaw Spychala; Krzysztof Golankiewicz


Journal of Mass Spectrometry | 1988

Stabilization of even-electron ions by cyclization of substituents on 3N- and 4N-nitrogens in 4N-substituted cytosines

Adam S. Plaziak; Lech Celewicz; Jaroslaw Spychala; Krzysztof Golankiewicz


Journal of Mass Spectrometry | 1989

Mass spectrometry of 4N‐pyrimidinyl amino acids

Adam S. Plaziak; Lech Celewicz; Jaroslaw Spychala; Krzysztof Golankiewicz


Journal of Mass Spectrometry | 1989

Mass spectrometry of 5-(3-alkyl-1h-indol-2-yl)uracils

Adam S. Plaziak; Lech Celewicz


Journal of Mass Spectrometry | 1990

Mass spectrometry of some methyl esters of N‐4‐pyrimidinylamino acids: Rearrangements of the ions occurring on electron‐impact ionization

Adam S. Plaziak; Lech Celewicz; Jaroslaw Spychala; Krzysztof Golankiewicz


Journal of Mass Spectrometry | 1989

Mass spectrometry of some new pyrimidine derivatives: Electron impact-induced decomposition of 5-alkyl-5-acylamino-6-imino-1,2,5,6-tetrahydro-2(1H)-thioxopyrimidin-4(3H)-ones

Adam S. Plaziak; Bozenna Golankiewicz; Joanna Zeidler; Krzysztof Golankiewicz


Polish Journal of Chemistry | 1998

Mass spectrometry of 2,4-dialkoxy-5-bromopyrimidines

Adam S. Plaziak; H. Wójtowicz-Rajchel; Krzysztof Golankiewicz


Journal of Mass Spectrometry | 1992

Electron impact-induced decomposition of some substituted 7-ethoxycarbonylpyridopyrrolidenequinolines

Adam S. Plaziak; Tomasz Girek; Wanda Śliwa


Journal of Mass Spectrometry | 1991

Mass spectrometry of pyrimidine derivatives: Electron impact-induced decomposition of molecular ions of 4-amino-substituted and 4-amino-disubstituted 1,2-dihydro-1-methylpyrimidin-2-ones

Adam S. Plaziak; Lech Celewicz; Krzystof Ciszewski; Krzysztof Golankiewicz

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Krzysztof Golankiewicz

Adam Mickiewicz University in Poznań

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Jaroslaw Spychala

Adam Mickiewicz University in Poznań

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Lech Celewicz

Adam Mickiewicz University in Poznań

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Walenty Szczepaniak

Adam Mickiewicz University in Poznań

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H. Wójtowicz-Rajchel

Adam Mickiewicz University in Poznań

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Joanna Zeidler

Polish Academy of Sciences

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Krzystof Ciszewski

Adam Mickiewicz University in Poznań

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Krzysztof Ciszewski

Adam Mickiewicz University in Poznań

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L. Celevicz

Adam Mickiewicz University in Poznań

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