Journal Articles

P. Dietemann, M. Kälin, C. Sudano, R. Knochenmuss, and R. Zenobi, Influence of Sunlight during Harvest on the Oxidation and Yellowing of Natural Mastic Resins used as Varnishes on Artwork, Chimia 55, 972-980 (2001).

V. Frankevich and R. Zenobi, Deceleration of High-Energy Matrix-Assisted Laser Desorption/Ionization Ions in an Open Cell for Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry, Rapid Commun. Mass Spectrom. 15, 2035-2040 (2001).

S. D. Friess, J. M. Daniel, R. Hartmann, and R. Zenobi, Mass Spectrometric Noncovalent Probing of Amino Acids in Peptides and Proteins, Int. J. Mass Spectrom. 219, 269-281 (2002).

V. Frankevich and R. Zenobi, Flexible Open Cell Design for Internal MALDI Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry, Rapid Commun. Mass Spectrom. 15, 979-985 (2001).

В. Е. Франкевич, Р. Зеноби, Новые возможности  спектрометра ионного циклотронного резонанса с открытой ячейкой удерживания ионов (V. E. Frankevich and R. Zenobi, Novel Aspects of Ion Cyclotron Resonance Spectrometer with Open Trapped-ion Cell) Chem. Phys. Rep. 20, 33-46 (2001).

K. Breuker, R. Knochenmuss, J. Zhang, A. Stortelder, and R. Zenobi, Thermodynamic Control of Final Ion Distribution in MALDI: In-Plume Proton Transfer Reactions, Int. J. Mass Spectrom. 226, 211-222 (2003).

J. Zhang, R. Knochenmuss, E. Stevenson, and R. Zenobi, The Gas-Phase Sodium Basicities of Common MALDI Matrices, Int. J. Mass Spectrom. 213, 237-250 (2002).

P. J. de Groot, G. J. Postma, W. J. Melsson, L. M. C. Buydens, V. Deckert, and R. Zenobi, Application of Principal Component Analysis to Detect Outliers and Spectral Deviations in Near-Field Surface-Enhanced Raman Spectra, Anal. Chim. Acta 446, 71-83 (2001).

R. Stöckle, P. Setz, V. Deckert, T. Lippert, A. Wokaun, and R. Zenobi, Nanoscale Atmospheric Pressure Laser Ablation-Mass Spectrometry, Anal. Chem. 73, 1399-1402 (2001).

B. D. Morrical and R. Zenobi, Determination of Aromatic Tracer Compounds for Environmental Tobacco Smoke Aerosol by Two-Step Laser Mass Spectrometry, Atmosph. Envir. 36, 801 –811 (2002).

S. D. Friess and R. Zenobi, Protein Structure Information from Mass Spectrometry? Selective Titration of Arginine Residues by Sulfonates, J. Am. Soc. Mass Spectrom. 12, 810-818 (2001).

V. Frankevich and R. Zenobi, Dynamic Ion Trapping in a Cylindrical Open Cell for Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Int. J. Mass Spectrom. 207, 57-67(2001).

H. Ørsnes and R. Zenobi, Interfaces for On-Line Liquid Sample Delivery for Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry, Chem. Soc. Rev. 30, 104-112 (2001).

P. Dietemann, M. Kälin, S. Zumbühl, R. Knochenmuss, S. Wülfert, and R. Zenobi, A Mass Spectrometry and Electron Paramagnetic Resonance Study of Photochemical and Thermal Aging of Triterpene Varnishes, Anal. Chem. 73, 2087-2096 (2001).

P. Dietemann, M. J. Edelmann, C. Meisterhans, C. Pfeiffer, S. Zumbühl, R. Knochenmuss, and R. Zenobi, Artificial Photoaging of Triterpenes Studied by Graphite-Assisted Laser Desorption/Ionization Mass Spectrometry, Helv. Chim. Acta 83, 1766-1777 (2000).

R. Knochemuss, A. Stortelder, K. Breuker, and R. Zenobi, On Secondary Ion-Molecule Reactions in Matrix-assisted Laser Desorption/Ionization, J. Mass Spectrom. 35, 1237-1245 (2000).

E. Stevenson, K. Breuker, and R. Zenobi, Relative Internal Energies of Analyte Ions generated from Different MALDI Matrices, J. Mass Spectrom. 35, 1035-1041 (2000).

T. D. Bucheli, O. P. Haefliger, R. Dietiker, Jr., and R. Zenobi, Analysis of Water Contaminants and Natural Water Samples using Two-Step Laser Mass Spectrometry, Anal. Chem. 72, 3671-3677 (2000).

R. Skelton, F. Dubois, and R. Zenobi, A MALDI Sample Preparation Method Suitable for Insoluble Polymers, Anal. Chem. 72, 1707-1710 (2000).

B. Hecht, B. Sick, U. P. Wild, V. Deckert, R. Zenobi, O. F. Martin, and D.W. Pohl, Scanning Near-Field Optical Microscopy and Spectroscopy with Aperture Probes: Fundamentals and Applications, J. Chem. Phys. 112, 7761-7774 (2000).

R. Stöckle, Y. D. Suh, V. Deckert, and R. Zenobi, Nanoscale chemical analysis by Tip-enhanced Raman Scattering, Chem. Phys. Lett. 318, 131-136 (2000).

O. P. Haefliger, T. D. Bucheli, and R. Zenobi, Laser Mass Spectrometric Analysis of Organic Atmospheric Aerosols. 2. Elucidation of Urban Air Pollution Processes in Real Time, Environm. Sci. Technol. 34, 2184-2189 (2000).

O. P. Haefliger, T. D. Bucheli, and R. Zenobi, Laser Mass Spectrometric Analysis of Organic Atmospheric Aerosols. 1. Characterization of Emission Sources, Environm. Sci. Technol. 34, 2178-2183 (2000).

J. Lu and R. Zenobi, In-situ Monitoring of Protein Labeling Reactions by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry, Fres. J. Anal. Chem. 366,

R. Zenobi and V. Deckert, Scanning Near-Field Optical Microscopy and Spectroscopy as a Tool in Chemical Analysis, Angew. Chem. Int. Ed. 39, 1746-1756 (2000);  Optische Nahfeldmikroskopie und -spektroskopie als Werkzeug in der chemischen Analytik, Angew. Chem. 112, 1815-1825 (2000).

E. Lehmann, B. Salih, M. Gómez-López, F. Diederich, and R. Zenobi, Do Matrix-Assisted Laser Desorption/Ionization Mass Spectra Reflect Solution-Phase Formation of Cyclodextrin Inclusion Complexes?, The Analyst 125, 849-854 (2000).

F. Dubois, R. Knochenmuss, and R. Zenobi, Can Complexation Constants in Solution be Measured by MALDI Mass Spectrometry?, Eur. Mass Spectrom. 5, 267-272 (1999).

F. Dubois, R. Knochenmuss, and R. Zenobi, Optimization of an Ion-to-Photon Detector for Large Molecules in Mass Spectrometry, Rapid Commun. Mass Spectrom. 13, 1958-1967 (1999).

K. Breuker, R. Knochenmuss, and R. Zenobi, Proton Transfer Reactions of MALDI Matrix Monomers and Dimers, J. Am. Soc. Mass Spectrom. 10, 1111-1123, (1999).

R. Stöckle, V. Deckert, C. Fokas, D. Zeisel, R. Zenobi, Subwavelength Raman Spectroscopy on Isolated Silver Islands, Vibr. Spectrosc. 22, 39-48 (1999).

O. P. Haefliger, T. D. Bucheli, and R. Zenobi, Comment on "Real-Time Characterization of the Organic Composition and Size of Individual Diesel Engine Smoke Particles", Environ. Sci. Technol. 33, 3932 (1999).

R. Knochenmuss, E. Lehmann, and R. Zenobi, Polymer Cationization in Matrix-Assisted Laser Desorption/Ionization, Eur. Mass Spectrom. 4, 421-427 (1998).

R. M. Stöckle, N. Schaller, V. Deckert, C. Fokas, and R. Zenobi, Brighter Near-Field Optical Probes by way of Improving the Optical Destruction Threshold, J. Microsc. 194, 378-382 (1999).

V. Deckert, D. Zeisel, R. Zenobi, and T. Vo-Dinh, Subwavelength Raman Imaging of Biological Samples using Near-Field Spectroscopy, SPIE Proc. 3607, 8-15 (1999).

R. M. Stöckle, C. Fokas, V. Deckert, R. Zenobi, B. Sick. B. Hecht, and U. P. Wild, High Quality Near-Field Optical Probes by Tube Etching, Appl. Phys. Lett. 75, 160-162 (1999).

O. P. Haefliger, T. D. Bucheli, and R. Zenobi, Evolution de la Teneur en Composés Aromatiques des Aérosols Urbains au Cours d'une Journée - Etude par Spectrométrie de Masse à Deux Lasers; Time-resolved Analysis of Aerosol-Bound Aromatic Compounds by Two-Step Laser Mass Spectrometry, Analusis, 27, 337-340 (1999).

U. Baumann, M. Benz, E. Pletscher, M. Siegfried, K. Breuker, and R. Zenobi, Bioabbau von Zuckeralkoholethoxylaten, Tens. Surf. Det. 36, 288-293 (1999).

R. M. Stöckle, D. Zeisel, V. Deckert, C. Fokas, and R. Zenobi, Controlled Formation of Isolated Silver Islands as Substrates for Surface-Enhanced Raman Spectroscopy, Appl. Spectrosc. 54, 1577-1583 (2000).

J. Lu and R. Zenobi, Matrix-assisted Desorption/ Ionization Mass Spectrometry for Identifying the Composition of Labeled Proteins, Anal. Biochem. 269, 312-316 (1999).

M. Handschuh, S. Nettesheim, and R. Zenobi, Is Infrared Laser-Induced Desorption a Thermal Process? J. Phys. Chem. B 103, 1719-1726 (1999).

F. Dubois, R. Knochenmuss, R. Zenobi, A. Brunelle, C. Deprun, and Y. Le Beyec, A Comparison Between Ion-to-photon and Micorchannel Plate Detectors Used in Time-of-flight Mass Spectrometry, Rapid Commun. Mass Spectrom. 13, 786-791 (1999).

K. Breuker, R. Knochenmuss, and R. Zenobi, Gas-Phase Basicities of Deprotonated Matrix-Assisted Laser Desorption/Ionization Matrix Molecules, Int. J. Mass Spectrom. 184, 25-38 (1999).

R. Zenobi and R. Knochenmuss, Ion Formation in MALDI Mass Spectrometry, Mass Spectrom. Rev. 17, 337-366 (1998).

M. Handschuh, S. Nettesheim, and R. Zenobi, Laser-Induced Molecular Desorption and Particle Ejection from Organic Films, Appl. Surf. Sci. 137, 125-135 (1999).

V. Karbach, R. Knochenmuss, and R. Zenobi, Matrix-assisted Filament Desorption/ Ionization Mass Spectrometry, J. Am. Soc. Mass Spectrom. 9, 1226-1228 (1998).

C. Masselon, B. Salih, and R. Zenobi, Matrix-Assisted Laser Desorption/Ionization Fourier Transform Mass Spectrometry of Luteinizing Hormone Releasing Hormone Metal Complexes, J. Am. Soc. Mass Spectrom. 10, 19-26 (1999).

B. Salih, C. Masselon, and R. Zenobi, Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry of Noncovalent Protein-Transition Metal Ion Complexes, J. Mass Spectrom. 33, 994-1002 (1998).

E. Lehmann and R. Zenobi, Detektion spezifischer nichtkovalenter Zinkfingerpeptid-Oligodesoxynucleotid-Komplexe durch matrixunterstützte Laserdesorptions/ Ionisations-Massenspektrometrie, Angew. Chem. 110, 3600-3603 (1998); E. Lehmann and R. Zenobi, Specific Noncovalent Zinc Finger Peptide-Oligodesoxynucleotide Complexes Detected by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry, Angew. Chem. Intl. Ed. 37, 3430-3432 (1998).

R. Knochenmuss, V. Karbach, U. Wiesli, K. Breuker, and R. Zenobi, The Matrix Suppression Effect in Matrix-Assisted Laser Desorption/Ionization: Application to Negative Ions and Further Characteristics, Rapid Commun. Mass Spectrom. 12, 529-534 (1998).

M. Handschuh, S. Nettesheim, and R. Zenobi, Laser-Induced Desorption of thin Molecular Films investigated with High Time Resolution, J. Chem. Phys. 108, 6548-6549 (1998).

K. Breuker, R. Knochenmuss, and R. Zenobi, Matrix-assisted Laser Desorption/ Chemical Ionization (MALD/CI) with Reagent Ion Generation directly from a Liquid Matrix, Int. J. Mass Spectrom. Ion Proc. 176, 149-159 (1998).

S. Nettesheim, D. Zeisel, M. Handschuh, and R. Zenobi, Self Assembly and Desorption Behavior of Poly(ethylene glycol) Monolayers on Silica, Langmuir 14, 3101-3106 (1998).

V. Deckert, D. Zeisel, R. Zenobi, and T. Vo-Dinh, Near-field Surface-Enhanced Raman Imaging of Dye Labeled DNA with 100 nm Resolution, Anal. Chem. 70, 2646-2650 (1998).

O. P. Haefliger and R. Zenobi, Laser Mass Spectrometric Analysis of Polycyclic Aromatic Hydrocarbons with Wide Wavelength Range Laser Multiphoton Ionization Spectroscopy, Anal. Chem. 70, 2660-2665 (1998).

D. Zeisel, V. Deckert, R. Zenobi, and T. Vo-Dinh, Near-field Surface-Enhanced Raman Spectroscopy of Dye Molecules adsorbed on Silver Island Films, Chem. Phys. Lett. 283, 381-385 (1998).

E. Lehmann, R. Zenobi, and S. Vetter, MALDI Mass Spectra Reflect Solution-Phase Zinc Finger Peptide Complexation, J. Am. Soc. Mass Spectrom. 10, 27-34 (1999).

R. Zenobi, Chemische Analytik in Nanometer-Dimensionen, GIT Lab. Fachz. 41, 1161-1163 (1997).

O. P. Haefliger and R. Zenobi, New Sample Preparation for Quantitative Laser Desorption Mass Spectrometry and Optical Spectroscopy, Rev. Sci. Instrum. 69, 1828-1832 (1998).

B. Salih and R. Zenobi, Matrix-assisted Laser Desorption/Ionization of Dye-Peptide and Dye-Protein Complexes, Anal. Chem. 70, 1536-1543 (1998).

S. Zumbühl, R. Knochenmuss, S. Wülfert, F. Dubois, M. J. Dale, and R. Zenobi, A Graphite-Assisted Laser Desorption/Ionization Study of Aging in Triterpene Dammar and Mastix Varnishes, Anal. Chem. 70, 707-715 (1998).

E. Lehmann, R. Knochenmuss, and R. Zenobi, Ionization Mechanisms in Matrix-Assisted Laser Desorption/ Ionization Mass Spectrometry: Contribution of Pre-formed Ions, Rapid Commun. Mass Spectrom. 11, 1483-1492 (1997).

R. Zenobi, Laser-Assisted Mass Spectrometry, Chimia Special issue on "Analytical Science in Switzerland", Chimia 51, 801-803 (1997).

D. W. Pohl et al., Optical Microscopy in the Nano-World, Chimia Special issue on "Analytical Science in Switzerland", Chimia 51, 760-767 (1997).

M. Handschuh, S. Nettesheim, and R. Zenobi, Picosecond Laser Desorption Kinetics of Poly-(Ethylene Glycol), Chem. Phys. Lett. 275, 93-97 (1997).

R. Zenobi, Frontiers of Laser Chemical Analysis, Chimia 51, 234-236 (1997).

B. Dutoit, D. Zeisel, V. Deckert, and R. Zenobi, Laser-Induced Ablation through Nanometer-Sized Tip Apertures: Mechanistic Aspects, J. Phys. Chem. B 101, 6955-6959 (1997).

M. Handschuh, S. Nettesheim, and R. Zenobi, Is Laser Heating Advantageous for Thermal Desorption of Large Polar Molecules? J. Chem. Phys. 107, 2603-2610 (1997).

S. Nettesheim, M. Handschuh, and R. Zenobi, Comment to A. Baraldi et al, Surf. Sci. 367 (1996) L67, "Temperature Programmed X-ray Photoelectron Spectroscopy: A New Technique for the Study of Surface Kinetics", Surf. Sci. Lett. 391, L1249-L1251(1998).

F. Dubois, R. Knochenmuss, and R. Zenobi, An Ion-to-Photon Conversion Detector for Mass Spectrometry, Int. J. Mass Spectrom. Ion Proc. (special issue on MALDI), 169/170 (1997) 89-98.

R. J. J. Steenvoorden, K. Breuker, and R. Zenobi, The Gas Phase Basicity of MALDI Matrices, Eur. Mass Spectrom. 3, 339-346 (1997).

M. J. Dale, R. Knochenmuss, and R. Zenobi, Two-Phase MALDI-Matrix Selection and Sample Pretreatment for Complex Anionic Analytes, Rapid Commun. Mass Spectrom. 11, 136-142 (1997).

Q. Zhan, S. J. Wright, and R. Zenobi, Laser Desorption Substrate Effects, J. Am. Soc. Mass Spectrom. 8, 525-531 (1997).

D. Zeisel, B. Dutoit, V. Deckert, T. Roth, and R. Zenobi, Optical Spectroscopy and Laser Desorption on a Nanometer Scale, Anal. Chem. 69, 749-754 (1997).

M. J. Dale, P. J. Dyson, P. Suman, and R. Zenobi,  Ultraviolet Laser Desorption of Chromiumtricarbonyl-arene Complexes: A Route to Extended Sandwich Complexes, Organometallics 16, 197-204 (1997).

M. J. Dale, R. Knochenmuss, and R. Zenobi, Graphite/Liquid Mixed Matrices for Laser Desorption/Ionization Mass Spectrometry, Anal. Chem. 68, 3321-3329 (1996). (accelerated article)

F. Dubois, R. Knochenmuss, R. J. J. M. Steenvoorden, K. Breuker, and R. Zenobi, Mechanism and Control of Salt-Induced Resolution Loss in MALDI, Europ. Mass Spectr. 2/3, 167-172 (1996).

R. Knochenmuss, F. Dubois, M. J. Dale, and R. Zenobi, The Matrix Suppression Effect and Ionization Mechanisms in MALDI, Rapid Commun. Mass Spectr. 10, 871-877 (1996).

S. Nettesheim and R. Zenobi, Pulsed Laser Heating of Surfaces: Nanosecond Time-Scale Temperature Measurement using Black-Body Radiation, Chem. Phys. Lett. 255, 39-44 (1996).

D. Zeisel, S. Nettesheim, B. Dutoit, and R. Zenobi, Pulsed Laser-Induced Desorption and Optical Imaging with Scanning Near-Field Optical Microscopy using Chemically Etched Fiber Tips, Appl. Phys. Lett. 68, 2491-2492 (1996).

S. J. Wright, M. J. Dale, P. R. R. Langridge-Smith, and R. Zenobi, Selective in-situ Detection of Polymer Additives using Laser Mass Spectrometry, Anal. Chem. 68, 3585-3594 (1996).

Q. Zhan, R. Zenobi, S. J. Wright, and P. R. R. Langridge-Smith, Spatially Resolved in-situ Analysis of Polymer Additives by Two-Step Laser Mass Spectrometry, Macromol. 29, 7865-7871 (1996).

Q. Zhan, R. Zenobi, P. R. Buseck, and S. Teerman, Analysis of Polycyclic Aromatic Hydrocarbons (PAHs) in Kerogen using Two-Step Laser Mass Spectrometry,

P. Voumard and R. Zenobi, Laser-Induced Thermal Desorption of Aniline from Silica Surfaces, J. Chem. Phys. 103, 6795-6805 (1995).

M. J. Dale, P. J. Dyson, B. F. G. Johnson, P. R. R. Langridge-Smith, and R. Zenobi, Characterisation of Ruthenium Clusters Carrying Facial Arene Ligands using Ultraviolet Desorption Mass Spectrometry: Formation of Gas-Phase Monocharged Anionic Clusters from Neutral Molecuar Clusters, Chem. Comm. 5/02864G, 1689-1690 (1995).

P. Voumard, R. Zenobi and Q. Zhan, Spectroscopic Probe for Energy Transfer during Laser Desorption from Surfaces, J. Phys. Chem. 99, 11722-11727 (1995).

P. Voumard, Q. Zhan, and R. Zenobi, Detection of Molecular Surface Adsorbates at the 10-6 Monolayer Level and Below, Chem. Phys. Lett. 239, 89-94 (1995).

M. J. Dale, Q. Zhan, R. Zenobi, K. Costello, and P. R. R. Langridge-Smith, Analysis of Dyestuffs on Polyester using Laser Desorption-Laser Photoionisation Mass Spectrometry, Anal. Meth. Instr. 2, 101-105 (1995).

P. Voumard, Q. Zhan, and R. Zenobi, Adsorption of Monosubstituted Benzenes on Low Surface Area Silica Studied by Temperature-Programmed Desorption and Laser-Induced Thermal Desorption Methods, Langmuir 11, 842-848 (1995).

R. Zenobi, Q. Zhan, and P. Voumard, Multiphoton Ionization Spectroscopy in Surface Analysis and Laser Desorption Mass Spectrometry, Microchim. Acta 124, 273-281 (1996).

Q. Zhan, P. Voumard, and R. Zenobi, Application of Two-Step Laser Mass Spectrometry to the Chemical Analysis of Aerosol Particle Surfaces, Rapid Commun. Mass Spectr. 9, 119-127 (1995).

Q. Zhan, P. Voumard, and R. Zenobi, Chemical Analysis of Cancer Therapy Photosensitizers by Two-Step Laser Mass Spectrometry, Anal. Chem. 66, 3259-3266 (1994).

P. Voumard, R. Zenobi, and Q. Zhan, Laser-Induced Thermal Desorption of Aniline from a Quartz Surface, Surf. Sci. 307-309, 360-366 (1994).

R. Zenobi, Modern Laser Mass Spectrometry, Fres. J. Anal. Chem. 348, 506-509 (1994).