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Positive-ion ESI spectra of different PEGs at 0.05 mg ml , with PEG 3500 the spectrum is a complex superimposition of charge states 6 to 2 . Reproduced from Ref. by permission. American Association for the Advancement of Science, 1989.

Positive-ion ESI spectra of the protein after ad htion of 1,4-dithiothreitol. Reproduced from Ref. by permission. American Chemical Society, 1990.

Positive-ion ESI spectra of the protein after addition of 1,4-dithiothreitol. Reproduced from Ref. by permission. American Chemical Society, 1990.

Positive-ion ESI spectrum of a cationic dinuclear platinum hydride complex from dichloromethane solution. The insets compare experimental and theoretical isotopic patterns. By courtesy of P. Hofmann, University of Heidelberg.

Positive-ion ESI-FT-ICR spectrum of crude oil. The mass scale is successively expanded from the broadband spectrum into detail at three nominal mass values. Adapted from Ref. by permission. American Chemical Society, 2002.

Positive-ion ESI-FT-ICR spectrum of crude oil. The mass scale is successively expanded from the broadband spectrum to a more detailed one at three nominal mass values. Adapted from Ref. by permission. American Chemical Society, 2002.

Positive-ion FAB mass spectrum of a commercial mix of polyethoxylated quaternary ammonium salts in a glycerol matrix.

Positive-ion FAB mass spectrum of semipermanent hair dye containing polyethoxylated with permission.

Positive-ion FAB mass spectrum of Tyr-Gly-Gly-Phe-Met-Arg-Gly-Leu acquired using glycerol as the matrix.

Positive-ion FAB spectram of polyethyleneglycol of average molecular weight 600 u ia NBA matrix.

Positive-ion FAB spectrum of a cationic fluorescent marker dye with PEG 600 admixed for internal mass calibration. By courtesy of K. H. Drexhage, Siegen University, and J. Wolfrum, Heidelberg University.

Positive-ion FAB spectrum of a cationic fluorescent marker dye with PEG 600 admixed for internal mass calibration. By courtesy of K. H. Drexhage, University of Siegen and J. Wolfrum, University of Heidelberg.

Positive-ion FAB spectrum of an immonium salt . The perchlorate counterion can weU be identified from the first and second cluster ion. By courtesy of H. Im-gartinger, Heidelberg University.

Positive-ion FAB spectrum of an immonium salt. The perchlorate counterion can well be identified from the first and second cluster ion. By courtesy of H. Im-gartinger. University of Heidelberg.

Positive-ion FAB spectrum of polyethyleneglycol of average molecular weight 600 u in NBA matrix.

Positive-ion LDI-FT-ICR mass spectmm of a fuUerene soot. The insets show expanded views of the experimental upperparts and calculated lowerparts isotopic patterns of Cgo , Cvo .and Ci2o - Sample courtesy of W. Kratschmer, Max Planck Institute for Nuclear Physics, Heidelberg. Reproduced from Ref. by permission. Wiley-VCH, Weinheim, 2009.

Positive-ion LDI-TOF mass spectmm of 1,2,3,4,5,6-hexahydrophenanthro- l,10,9,8-opijra perylene. The inset shows an expanded view of the molecular ion signal. Adapted from Ref. with permission. Elsevier Science, 2002.

Positive-ion LDI-TOF mass spectrum of 1,2,3,4,5,6-hexahydrophenanthro- l,10,9,8-cp ra perylene. The inset shows an expanded view of the molecular ion signal. Adapted from Ref. with permission. Elsevier Science, 2002.

Positive-ion LDI-TOF spectrum of a fuUerene soot. The insets show expanded views of the isotopic patterns of Cao and Ci2o - By courtesy of W. Kratschmer, Max Planck Institute for Nuclear Physics, Heidelberg.

Positive-ion MALDI mass

Positive-ion MALDI mass spectrum of

Positive-ion MALDI spectrum of the maltose chains in gummy bears . Reproduced from Ref. by permission. John Wiley Sons, 1995.

Positive-ion MALDI-TOF mass spectra of an organic extract from hen egg yolk, . Peaks are labeled

Positive-ion MALDI-TOF mass spectra of selected PL PC 16

Positive-ion MALDI-TOF mass spectra of selected triacylglycerols. TAG 3x18



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