Keith R. Jennings
#69,671
Most Influential Person Now
British chemist
Keith R. Jennings's AcademicInfluence.com Rankings
Keith R. Jenningschemistry Degrees
Chemistry
#4228
World Rank
#5295
Historical Rank
Organic Chemistry
#828
World Rank
#928
Historical Rank
Download Badge
Chemistry
Keith R. Jennings's Degrees
- Bachelors Chemistry University of Oxford
- PhD Chemistry University of Oxford
Why Is Keith R. Jennings Influential?
(Suggest an Edit or Addition)According to Wikipedia, Keith Robert Jennings is a British chemist known for his contributions to mass spectrometry. Early life and education 1956 Ph.D. Queen’s College Oxford Research interests Structural studies on proteins of significant biological interest
Keith R. Jennings's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- Interactions of Flavonoids with Iron and Copper Ions: A Mechanism for their Antioxidant Activity (2002) (845)
- Iron and copper chelation by flavonoids: an electrospray mass spectrometry study. (2002) (281)
- Collision-induced decompositions of aromatic molecular ions (1968) (253)
- The observation of metastable transitions in a double-focussing mass spectrometer using a linked scan of the electric sector and magnetic sector fields (1978) (237)
- Metastable Transitions in the Mass Spectrum of Benzene (1965) (178)
- Negative ions (1979) (154)
- Collision-induced dissociation of alkali metal cationized and permethylated oligosaccharides: Influence of the collision energy and of the collision gas for the assignment of linkage position (1993) (97)
- Bactericidal and morphological effects of amoxicillin on Helicobacter pylori (1995) (94)
- Ion mobility mass spectrometry of proteins in a modified commercial mass spectrometer (2004) (93)
- A STUDY OF CATION ATTACHMENT TO POLYSTYRENE BY MEANS OF MATRIX-ASSISTED LASER DESORPTION/IONIZATION AND ELECTROSPRAY IONIZATION-MASS SPECTROMETRY (1997) (78)
- The observation of metastable transitions in a double-focussing mass spectrometer using a linked scan of the accelerating and electric-sector voltages (1976) (78)
- Collision-induced decomposition of ions (1990) (69)
- Time-lag focusing and cation attachment in the analysis of synthetic polymers by matrix-assisted laser desorption/ionization-time-of-flight-mass spectrometry (1997) (67)
- The use of ion‐molecule reactions in the mass spectrometric location of double bonds (1976) (64)
- The changing impact of the collision-induced decomposition of ions on mass spectrometry (2000) (62)
- Application of electrospray ionisation mass spectrometry to the study of dilute aqueous oligomeric anions and their reactions (1997) (62)
- Relative Rates of Addition of Hydrogen Atoms to Olefines (1961) (59)
- Spectrometric identification of organic compounds (Fifth Edition) R. M. SILVERSTEIN, G. C. BASSLER AND T. C. MORRILL. Wiley, New York, 1991. No. of pages: 430. ISBN 0471 63404 2. Price: £50.25, $76.10 (1991) (58)
- Fundamentals of gas phase ion chemistry (1991) (54)
- Ion–molecule association reactions: A study of the temperature dependence of the reaction N+⋅2+N2+M → N+⋅4+M for M=N2, Ne, and He: Experiment and theory (1984) (50)
- Conformations of biopolymers in the gas phase: a new mass spectrometric method 2 2 Dedicated to Bob (2000) (50)
- Production of gas-phase radical anions by reaction of O–˙ ions with organic substrates (1976) (48)
- Generation of average mass values and end group information of polymers by means of a combination of matrix-assisted laser desorption/ionization-mass spectrometry and liquid secondary ion-tandem mass spectrometry (1997) (45)
- Spin-echo 1H n.m.r. spectroscopy: a new method for studying penicillin metabolism (1984) (39)
- The location of olefinic bonds in mono- and di-unsaturated compounds (1980) (39)
- 19F NMR spectroscopy study of the metabolites of flucloxacillin in rat urine (1985) (38)
- The measurement of appearance potentials of gaseous ions (1975) (37)
- Emission spectra of flames supported by active nitrogen (1960) (37)
- Mass spectral characterization of the thermal degradation of poly(propylene oxide) by electrospray and matrix-assisted laser desorption ionization (1995) (36)
- Rate constants for ion—molecule reactions determined by ICR mass spectrometry (1970) (36)
- Analysis of a 17-amino acid residue, virus-neutralizing microantibody. (2005) (35)
- The interpretation of double resonance signals in ion cyclotron resonance mass spectrometry (1970) (34)
- Mixed-terminal-ligand oxo-centered carboxylate-bridged trinuclear complexes: gas phase generation by means of electrospray ionization FT-ICR MS, condensed phase synthesis, and X-ray structure of K+[Cr3O(C6H5COO)6(F)2(H2O)]−·2(CH3)2CO (2001) (34)
- Metastable Ions in a Double Focusing Mass Spectrometer (1967) (32)
- Reactions of the negative oxygen ion (O−·) with carbonyl compounds (1976) (32)
- Kinetics, equilibria and diffusion of ions produced in N2, CO and CO2, studied as a function of temperature using a high-pressure pulsed mass spectrometer source (1982) (31)
- A mechanism for the loss of 60 u from peptides containing an arginine residue at the C-terminus (1997) (31)
- Recombination of atoms at surfaces. Part 7.—Hydrogen atoms at silica and other similar surfaces (1959) (30)
- Analysis of ion-molecule reactions in allene and propyne by ion cyclotron resonance (1970) (29)
- ICR mass spectra of fluoroalkenes: IV. Ion-molecule reactions in mixtures of ethylene and the fluoroethylenes (1973) (29)
- C3H5+ isomers: evidence for the existence of long-lived allyl and 2-propenyl cations in the gas phase (1980) (29)
- Evidence for a [2+4] cycloaddition in the ion‐molecule reaction of ionized 1,3‐butadiene with vinyl ethyl (methyl) ether in the gas phase (1978) (28)
- Structure in metastable peaks arising from reactions in which[C3H3]+ ions are produced (1976) (28)
- Negative chemical ionization mass spectrometry of explosives (1981) (28)
- Doubly-charged metastable ions of aromatic hydrocarbons (1966) (27)
- ICR Mass spectra of fluoroalkenes (1973) (27)
- Comparison of helium and argon as collision gases in the high energy collision-induced decomposition of MH+ ions of peptides (1992) (27)
- Negative chemical ionization mass spectrometry (1977) (26)
- Ion cyclotron resonance mass spectra of fluoroalkenes I. Ion—molecule reactions of ethylene and vinyl fluoride (1969) (26)
- Collisional activation spectra at improved resolving power obtained by the use of a collision chamber and a linked scan of the electric and magnetic sector field strengths (1978) (25)
- Surface‐induced dissociation mass spectra of protonated peptides using a four‐sector mass spectrometer (1992) (25)
- [2] Mass analyzers (1990) (24)
- ICR mass spectra of fluoroalkenes: III. Thermal ion-molecule reactions in C2HF3 and C2F4 by ion cyclotron resonance (1973) (23)
- Energy partition in the fragmentation of organic ions (1971) (22)
- Metastable peaks in chemical ionization mass spectrometry: Unimolecular decomposition of protonated methanol ions (1977) (22)
- Ion cyclotron resonance mass spectrometry of acetylene (1969) (22)
- Facile biocatalytic reduction of the carbon–carbon double bond of 5-benzylidenethiazolidine-2,4-diones. Synthesis of (±)-5-(4-{2-[methyl(2-pyridyl)amino]ethoxy}benzyl)thiazolidine-2,4-dione (BRL 49653), its (R)-(+)-enantiomer and analogues (1994) (22)
- Electrospray Ionization Mass Spectrometry of Poly(styrene) (1996) (21)
- Influence of ion activation and thermalization effects on reaction rate constants in a quadrupole ion trap mass spectrometer (1997) (21)
- Decomposition of Tropylium and Substituted Tropylium Ions (1966) (20)
- Linked scanning and metastable ion mapping (1982) (20)
- Coupled supercritical fluid chromatography/mass spectrometry using a thermospray source (1988) (19)
- Use of electrospray ionization mass spectrometry and tandem mass spectrometry to study binding of F0 inhibitors to ceroid lipofuscinosis protein, a model system for subunit c of mitochondrial ATP synthase. (1996) (19)
- Cluster formation in the fast atom bombardment (FAB) mass spectra of dioxouranium(VI) dinitrate and diacetate (1989) (19)
- Mass spectra of alkenyl methyl ethers (1991) (19)
- Relative rate constants for the reaction of ground-state oxygen atoms with partly fluorinated propylenes and butenes (1969) (18)
- Mechanism of the Mercury Photosensitized Decomposition of n‐Butane (1961) (18)
- Aqueous co-ordination chemistry using electrospray mass spectrometry of anions: metal(VI)–monosaccharide complexes (M = W or Mo) (1998) (18)
- Angle-resolved mass spectrometry by ‘z-deflected’ scanning (1982) (18)
- Angular distribution of fragment ions arising from the collision-induced decomposition of polyatomic primary ions (1983) (18)
- A study of the structures of decomposing and non‐decomposing [C4H5N]+˙ ions formed from different neutral species (1981) (17)
- Charge Remote Losses of Small Neutrals from Protonated and Group 1 Metal–Peptide Complexes of Peptides (1995) (17)
- Rapid analysis of epitope-paratope interactions between HIV-1 and a 17-amino-acid neutralizing microantibody by electrospray ionization mass spectrometry. (1998) (17)
- Iron and copper complexation by angiotensin-converting enzyme inhibitors. A study by ultraviolet spectroscopy and electrospray mass spectrometry (1998) (17)
- Relative gas-phase acidities of some fluoroalcohols (1977) (17)
- New antigenic regions of streptokinase are identified by affinity-directed mass spectrometry. (2001) (17)
- Thermochemical aspects of the formation of solvated anions from ethers under ion cyclotron resonance conditions (1981) (17)
- LOSS OF HYDROGEN-CYANIDE FROM MONOCYANOPYRIDINES UPON ELECTRON-IMPACT - DEWAR PYRIDINE STRUCTURES AND RING OPENING-RING CLOSURE REACTIONS REVEALED BY C-13-LABELING AND N-15-LABELING (1979) (16)
- The production, detection, and estimation of atoms in the gaseous phase (1961) (16)
- Application of statistical phase space theory to some termolecular association reactions of CH3+ and CD3+ ions (1984) (15)
- Kinetic shifts and metastable transitions (1970) (15)
- Reaction of oxygen atoms with 2-(trifluoromethyl)-propene (1968) (14)
- The effect of collision energy and nature of the surface on the surface-induced dissociation mass spectra of fluorobenzene using a four-sector mass spectrometer (1992) (14)
- Isolation of component spectra in the analysis of mixtures by mass spectrometry and 13C nuclear magnetic resonance spectroscopy: The utility of abstract factor analysis (1987) (14)
- Mercury-photosensitized decomposition of vinyl fluoride (1965) (14)
- Thermodynamics of some proton-transfer reactions. Dynamic ion structures and the measurement of entropies of ‘internal translation’ (1987) (14)
- The Application of Electrospray Ionisation and Tandem Mass Spectrometry to the Analysis of Polymer Additives (1996) (14)
- Comparison of the zero-field pulsing technique and the ICR [ion cyclotron resonance] technique for studying ion-molecule reactions (1970) (14)
- A determination of proton-transfer equilibrium constants in benzene/halobenzene mixtures at various temperatures using a high-pressure ion source (1981) (13)
- Metastable transitions in the mass spectra of fluoro‐ethylenes (1970) (13)
- Analysis of a five-component mixture of polymer additives by means of high energy mass spectrometry and tandem mass spectrometry (1996) (12)
- A crossed-beam study of target effects in the collision-induced dissociation of CS2+· (1985) (12)
- Negative ion mass spectra of a series of fluorinated β‐diketones (1977) (12)
- Chapter 12 – Chemical ionization mass spectrometry (1979) (12)
- Comparison of collision-induced dissociation and surface-induced dissociation mass spectra of peptides obtained using a four-sector mass spectrometer (1993) (11)
- The hydroxylase component of soluble methane monooxygenase from Methylococcus capsulatus (Bath) exists in several forms as shown by electrospray-ionisation mass spectrometry. (1998) (11)
- Fundamentals and applications of gas phase ion chemistry (1999) (11)
- Experimental aspects of the collision-induced decomposition of ions in a four-sector tandem mass spectrometer (1992) (11)
- Electrospray ionisation mass spectrometry (ESI MS) of poly(methyl methacrylate) and acrylic statistical copolymers (1996) (11)
- Noncovalent Shiga-like toxin assemblies: characterization by means of mass spectrometry and tandem mass spectrometry. (2005) (11)
- Electrospray ionization mass spectrometric study of oligomeric linear polysulfides: characterization of repeat units, end groups and fragmentation pathways (1997) (11)
- A STUDY OF THE INTERACTIONS BETWEEN GROUP 1 METALS AND THE C-TERMINUS OF PEPTIDES BY MEANS OF HIGH ENERGY TANDEM MASS SPECTROMETRY (1995) (11)
- Collision gas effects in the collision-induced decomposition of protonated and cationized molecules of carbohydrate antibiotics (1994) (11)
- Relative rate constants for the reaction of hydrogen atoms with some fluorinated mono-olefins (1974) (10)
- Production of High Concentrations of Hydrogen Atoms (1958) (10)
- The [C5H8]+ radical cation: structural studies by energy-resolved mass spectrometry (1985) (10)
- Gas Phase Ion Chemistry, Vol. 3: Ions and Light : Edited by Michael T. Bowers, Academic Press, New York, 1984. ISBN 0-12-120803-6, Price: $75.00/£58.00. (1985) (10)
- Determination of the amino acid sequence of cystine-containing peptides by tandem mass spectrometry. (1991) (10)
- Mass spectral characterization of oligomeric polysulfides by electrospray ionization combined with collision-induced decomposition (1996) (10)
- High energy collision-induced dissociation (CID) product ion spectra of isomeric polyhydroxy sugars (2003) (10)
- Electrospray mass spectrometry of angiotensin-converting enzyme inhibitors (1998) (9)
- Ion cyclotron resonance spectrometry (1977) (9)
- I. Halide ion transfer reactions in the gas phase ion chemistry of haloalkanes (1973) (9)
- Addition of hydrogen atoms to vinyl fluoride, 1,1-difluoroethylene, and trifluoroethylene (1969) (9)
- Mass spectra and ion-molecule reactions of the four isomeric monofluoropropenes (1976) (8)
- Selective chemical ionisation using chloride ions (1983) (8)
- Continuous-Flow Fast Atom Bombardment : edited by R.M. Caprioli, Wiley, Chichester, 1990, xi + 189 pp., cloth, £27.50 ISBN 0-471-92863-1. (1991) (8)
- A mass spectrometric method of locating double bonds by the use of ion-molecule reactions (1975) (8)
- The temperature dependence of ion-molecule association reactions (1982) (8)
- Electrospray ionisation mass spectrometry (ESI/MS) of ceroid lipofuscin protein; a model system for the study of F0 inhibitor interactions with mitochondrial subunit C. (1996) (8)
- Ion-molecule reactions in mixtures of fluorinated ethylenes and propylenes (1976) (8)
- Ion-molecule reactions in the vinyl methyl ether system studied by ion cyclotron resonance mass spectrometry (1976) (7)
- Mass spectrometry of arenediazonium salts by fast atom bombardment (1988) (7)
- The reaction of NH+⋅3 with H2S: Dependence on the translational and internal energy of NH+⋅3 (1984) (7)
- Mass spectral characterization of linear and cyclic forms of oligomeric nitrated polyethers by electrospray ionization: specific cationization effects in cyclic polyethers (1997) (7)
- Peptide sequencing by metastable mapping (1983) (7)
- Identification of crude oils by selective chemical ionization mass spectrometry (1982) (6)
- Formation and decomposition of uranium–oxygen clusters in fast atom bombardment of dioxouranium(VI) salts (1995) (6)
- Gas phase characterization of the noncovalent quaternary structure of cholera toxin and the cholera toxin B subunit pentamer. (2006) (6)
- Stepwise ligand dissociation and multiple changes in oxidation state in the fast atom bombardment (FAB) of cyanometallate complexes (1988) (6)
- Angular dependence of energy deposition in the low- energy collision-induced dissociation of CS2+· (1985) (6)
- Gas-phase proton transfer in halogenotoluene mixtures. Evidence for a ‘dynamic’ ion structure (1987) (6)
- The observation of broad metastable ion peaks in the surface-induced dissociation mass spectra of protonated and cationated peptides (1995) (6)
- The Effects of Internal Energy Deposition During Ionization on the Collision-induced Decomposition Spectra of an Organic Polymer Additive (1996) (6)
- Competing metastable transitions of the [C7H6F]+ ion (1972) (6)
- Hydroxyl anion chemical ionization screening of liquid fuel (1979) (6)
- Gas phase ion/molecule reactions of unsaturated hydroxy fatty acid analogs (1988) (6)
- Utilising Precursor Ion and Second-Generation Product Ion Scanning Techniques in a Four-Sector Mass Spectrometer for the Analysis of Polymer Additives (1997) (6)
- Stepwise ligand dissociation and multiple changes in oxidation state in the fast atom bombardment mass spectra of cyanometalate complexes of transition metals (1989) (6)
- Mercury-photosensitized decompositions of ethyl fluoride, 1,1-difluoroethane, and 1,1,1-trifluoroethane (1969) (5)
- The origin of M+˙ in the chemical ionization mass spectra of polymethylbenzenes (1988) (5)
- The observation of rhenium oxide ions (ReO3−, ReO4−, ReO3F−) and rhenium carbide ions (ReC3−, ReC3H−) in negative chemical ionisation mass spectrometry (1980) (5)
- Metastable transitions of the doubly-charged benzene ion (1965) (5)
- Spectra of Flames supported by Active Nitrogen (1957) (5)
- Gas-phase proton-transfer reactions in xylene–dimethyl ether mixtures. Further evidence for mobile protons (1989) (5)
- Ion Cyclotron Resonance Mass Spectrometry (1970) (5)
- Gas-phase basicities of halogenotoluenes (1982) (5)
- Scanning Methods for Double-Focussing Mass Spectrometers (1984) (5)
- A new ion source for the study of angle-resolved mass spectra (1988) (5)
- Observation of Metastable Transitions in a High Performance Mass Spectrometer (1978) (4)
- Investigations of Selective Reagent Ions in Chemical Ionization Mass Spectrometry (1978) (4)
- The Decomposition of Benzene and Deuterated Benzenes under Electron Impact (1967) (4)
- Mass spectrometry of aliphatic azides (1999) (4)
- Chemical ionization mass spectrometry of derivatives of L‐dopa and L‐tryptophan and their detection in tumour samples (1985) (4)
- Identification of Z and E isomers by chemical ionization (1988) (4)
- Electrospray Tandem Mass Spectrometry of Human Haemoglobin and a Number of β-Chain Aberrants (1996) (4)
- Analytical applications of ion activation techniques (2015) (3)
- Time resolved measurements in high pressure mass spectrometry: An analysis of assumptions (1978) (3)
- Detection of inelastic scattering of electrons by simple polyatomic molecules using the SF−6 ion (1969) (3)
- Mass spectrometric study of structure and stereochemistry of some stereoisomeric furanosidic derivatives (1992) (3)
- Mass spectra of 3-nitro-2H-chromenes and 3-nitrochromans (1987) (3)
- Tandem Mass Spectrometric Identification of Explosives Adsorbed on Organic Substrates (1993) (3)
- Progress in Reaction Kinetics (1983) (3)
- Negative‐ion chemical ionization in tandem mass spectrometry. Application to the location of an epoxide ring in an aliphatic chain (1987) (2)
- Ion decomposition maps (1983) (2)
- Chemical ionization mass spectra of urethanes (1990) (1)
- A mass spectrometric study of the pyrolysis of gibberellic acid (1985) (1)
- Summary of the Workshop on Fundamentals and Applications in Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (1999) (1)
- Ion cyclotron resonance mass spectra of fluoroalkenes (1969) (1)
- ESI-MS studies of heart mitochondrial subunit c. (1997) (1)
- International review of science, mass spectrometry, physical chemistry, series two, volume 5, edited by A. Maccoll, Butterworths, London, 1975, pp. 365. £13.45 (1976) (1)
- Weak chemiluminescence from the thermal decomposition of benzoyl peroxide in pyridine (1970) (1)
- Some Reactions of Partly-Fluorinated Ethyl Radicals (1968) (1)
- PRODUCTION OF ATOMS USING ELECTRIC DISCHARGES (1959) (1)
- The abstraction of fluorine by hydrogen atoms (1967) (1)
- Recent advances in organic mass spectrometry in analytical chemistry (1980) (1)
- Negative ion clusters in simple alcohol systems (1974) (1)
- Current practice of liquid chromatography–mass spectrometry (2000) (1)
- Consecutive metastable transitions in a double-focussing mass spectrometer (1966) (1)
- SPIN-ECHO PROTON NMR SPECTROSCOPY: A NEW METHOD FOR STUDYING PENICILLIN METABOLISM (1984) (0)
- Jennings Biographical Sketch (2013) (0)
- High-Resolution Mass Spectrometry and Its Applications (2006) (0)
- Facile Biocatalytic Reduction of the Carbon‐Carbon Double Bond of 5‐ Benzylidenethiazolidine‐2,4‐diones. Synthesis of (.+‐.)‐5‐(4‐(2‐( Methyl(2‐pyridyl)amino)ethoxy)benzyl)thiazolidine‐2,4‐dione (BRL 49653) , Its (R)‐(+)‐Enantiomer and Analogues. (1995) (0)
- Stepwise Ligand Dissociation and Multiple Changes in Oxidation State in the Fast Atom Bombardment (FAB) of Cyanometallate Complexes. (1988) (0)
- Butyl nitrite: A novel chemical ionization reagent compound (1988) (0)
- Electrospray ionisation mass spectrometry (ESI/MS) studies of organotin interactions with ceroid lipofuscin protein (subunit C). (1996) (0)
- Mass Spectrometry in the Biological Sciences: A Tutorial Michael L. Gross Kluwer Academic Publishers Hingham, MA 02018-0358 1992, $146.00 (1992) (0)
- Studies of protein conformation using mass spectrometry (2002) (0)
- The Tandem Mass Spectrometry of Nodularin, Microcystins, and Other Cyclic Peptides (1994) (0)
- Kinetic Energy Release and Metastable Transitions II. The Decomposition of Doubly-Charged Ions of Aliphatic and Alicyclic Hydrocarbons (1969) (0)
- Mass spectrometry as a means to identify structural proteins in a newly characterised virus (2002) (0)
- Electrospray Ionisation Studies of the Interaction of N,N′-Dicyclohexylcarbodiimide with Ceroid Lipofuscinosis Protein (Subunit C) (1997) (0)
- Mass spectrometry in the analysis of large molecules (1988) (0)
- The American Society for Mass Spectrometry The 1995 ASMS award for distinguished contribution in mass spectrometry (1995) (0)
- The reactivity of ground-state oxygen atoms with fluorine-substituted olefins (1969) (0)
- Mass Spectra of 3‐Nitro‐2H‐chromenes (I) and 3‐Nitrochromans (1988) (0)
- Erratum: Metastable Transitions in the Mass Spectrum of Benzene (1966) (0)
- Panel Discussion: Role of Biochemical, Physiological, and Neurochemical Research in the Insecticide Discovery Process (1987) (0)
- Workshop of Collision-Induced Decomposition of Ions (1999) (0)
- Lawrence Memorial Fund (1971) (0)
- PRODUCTION OF GAS-PHASE RADICAL ANIONS BY REACTION OF MONOOXYGEN RADICAL IONS WITH ORGANIC SUBSTRATES (1976) (0)
- Practical Organic Mass Spectrometry : second edition, by J.R. Chapman, published by J. Wiley, Chichester, U.K., 1993, 330 pp. (1994) (0)
- My memories of John Beynon (2004) (0)
- Peptide Analysis Using Tandem Mass Spectrometry (1989) (0)
- Metastable transitions of triply-charged ions (1967) (0)
This paper list is powered by the following services:
Other Resources About Keith R. Jennings
What Schools Are Affiliated With Keith R. Jennings?
Keith R. Jennings is affiliated with the following schools:
