Charles N. McEwen - Publications

Affiliations: 
University of the Sciences in Philadelphia 
Area:
Biochemistry

86 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2023 Trimpin S, Inutan E, Coffinberger H, Hoang K, Yenchick F, Wager-Miller J, Pophristic M, Mackie K, McEwen CN. Instrumentation development, improvement, simplification, and miniaturization: The multifunctional plate source for use in mass spectrometry. European Journal of Mass Spectrometry (Chichester, England). 29: 276-291. PMID 37999746 DOI: 10.1177/14690667231211486  0.453
2020 McEwen CN, Inutan ED, Moreno-Pedraza A, Lu IC, Hoang K, Pophristic M, Trimpin S. Sublimation Driven Ionization for Use in Mass Spectrometry: Mechanistic Implications. Journal of the American Society For Mass Spectrometry. PMID 33280376 DOI: 10.1021/jasms.0c00297  0.467
2020 Hoang K, Trimpin S, McEwen CN, Pophristic M. A Combination MAI and MALDI Vacuum Source Operational from Atmospheric Pressure for Fast, Robust, and Sensitive Analyses. Journal of the American Society For Mass Spectrometry. PMID 33270447 DOI: 10.1021/jasms.0c00298  0.398
2020 Trimpin S, Marshall DD, Karki S, Madarshahian S, Hoang K, Meher AK, Pophristic M, Richards AL, Lietz CB, Fischer JL, Elia EA, Wang B, Pagnotti VS, Lutomski CA, El-Baba TJ, ... ... McEwen CN, et al. An Overview of Biological Applications and Fundamentals of New Inlet and Vacuum Ionization Technologies. Rapid Communications in Mass Spectrometry : Rcm. e8829. PMID 32402102 DOI: 10.1002/Rcm.8829  0.448
2019 Trimpin S, Inutan ED, Karki S, Elia EA, Zhang WJ, Weidner SM, Marshall DD, Hoang K, Lee C, Davis ETJ, Smith V, Meher AK, Cornejo MA, Auner GW, McEwen CN. Fundamental Studies of New Ionization Technologies and Insights from IMS-MS. Journal of the American Society For Mass Spectrometry. PMID 31062287 DOI: 10.1007/S13361-019-02194-7  0.557
2019 Karki S, Meher AK, Inutan ED, Pophristic M, Marshall DD, Rackers K, Trimpin S, McEwen CN. Development of a Robotics Platform for Automated Multi-ionization Mass Spectrometry. Rapid Communications in Mass Spectrometry : Rcm. PMID 30950108 DOI: 10.1002/Rcm.8449  0.532
2018 Trimpin S, Pophristic M, Adeniji-Adele A, Tomsho JW, McEwen CN. Vacuum Matrix-Assisted Ionization Source offering Simplicity, Sensitivity, and Exceptional Robustness in Mass Spectrometry. Analytical Chemistry. PMID 30130391 DOI: 10.1021/Acs.Analchem.8B03378  0.615
2018 Trimpin S, Lee C, Weidner SM, El-Baba TJ, Lutomski CA, Inutan ED, Foley CD, Ni C, McEwen CN. Front Cover: Unprecedented Ionization Processes in Mass Spectrometry Provide Missing Link between ESI and MALDI (ChemPhysChem 5/2018) Chemphyschem. 19: 547-547. DOI: 10.1002/Cphc.201800145  0.552
2017 Trimpin S, Lu IC, Rauschenbach S, Hoang K, Wang B, Chubatyi ND, Zhang WJ, Inutan ED, Pophristic M, Sidorenko A, McEwen CN. Spontaneous Charge Separation and Sublimation Processes are Ubiquitous in Nature and in Ionization Processes in Mass Spectrometry. Journal of the American Society For Mass Spectrometry. PMID 29080207 DOI: 10.1007/S13361-017-1788-7  0.768
2017 Fenner MA, Chakrabarty S, Wang B, Pagnotti VS, Hoang K, Trimpin S, McEwen CN. A New LC/MS Method Providing Improved Sensitivity: Electrospray Ionization Inlet. Analytical Chemistry. PMID 28387502 DOI: 10.1021/Acs.Analchem.6B05172  0.579
2017 Lu I, Elia EA, Zhang W, Pophristic M, Inutan ED, McEwen CN, Trimpin S. Development of an easily adaptable, high sensitivity source for inlet ionization Analytical Methods. 9: 4971-4978. DOI: 10.1039/C7Ay00995J  0.585
2017 Madarshahian S, Pophristic M, McEwen CN. Infrared atmospheric solids analysis probe (IR-ASAP) mass spectrometry for ambient analysis of volatile compounds without heated gas Analytical Methods. 9: 5009-5014. DOI: 10.1039/C7Ay00874K  0.458
2016 Lu IC, Pophristic M, Inutan ED, McKay RG, McEwen CN, Trimpin S. Simplifying the Ion Source for Mass Spectrometry. Rapid Communications in Mass Spectrometry : Rcm. PMID 27520740 DOI: 10.1002/Rcm.7718  0.572
2016 Hoang K, Pophristic M, Horan AJ, Johnston MV, McEwen CN. High Sensitivity Analysis of Nanoliter Volumes of Volatile and Nonvolatile Compounds using Matrix Assisted Ionization (MAI) Mass Spectrometry. Journal of the American Society For Mass Spectrometry. PMID 27349254 DOI: 10.1007/S13361-016-1433-X  0.549
2015 Chubatyi ND, McEwen CN. Improving the Sensitivity of Matrix-Assisted Ionization (MAI) Mass Spectrometry Using Ammonium Salts. Journal of the American Society For Mass Spectrometry. 26: 1649-56. PMID 26122522 DOI: 10.1007/S13361-015-1205-Z  0.795
2015 Fenner MA, McEwen CN. Survival yield comparison between ESI and SAII: Mechanistic implications International Journal of Mass Spectrometry. 378: 107-112. DOI: 10.1016/J.Ijms.2014.07.023  0.603
2015 McEwen CN, Larsen BS. Fifty years of desorption ionization of nonvolatile compounds International Journal of Mass Spectrometry. 377: 515-531. DOI: 10.1016/J.Ijms.2014.07.018  0.46
2015 McEwen CN, Lieu T, Saylor S, Twohig M, Balogh MP. Atmospheric Samples Analysis Probe (ASAP) mass spectrometry New Developments in Mass Spectrometry. 2015: 104-119.  0.365
2014 Pagnotti VS, Chakrabarty S, Wang B, Trimpin S, McEwen CN. Gas-phase ions produced by freezing water or methanol for analysis using mass spectrometry. Analytical Chemistry. 86: 7343-50. PMID 25014489 DOI: 10.1021/Ac500132J  0.552
2013 Chakrabarty S, Pagnotti VS, Inutan ED, Trimpin S, McEwen CN. A new matrix assisted ionization method for the analysis of volatile and nonvolatile compounds by atmospheric probe mass spectrometry. Journal of the American Society For Mass Spectrometry. 24: 1102-7. PMID 23661423 DOI: 10.1007/S13361-013-0634-9  0.603
2013 Pagnotti VS, Chakrabarty S, McEwen CN. Carbonation and other super saturated gases as solution modifiers for improved sensitivity in solvent assisted ionization inlet (SAII) and ESI. Journal of the American Society For Mass Spectrometry. 24: 186-92. PMID 23296909 DOI: 10.1007/S13361-012-0535-3  0.531
2013 Harron AF, Hoang K, McEwen CN. High mass resolution tissue imaging at atmospheric pressure using laserspray ionization mass spectrometry International Journal of Mass Spectrometry. 352: 65-69. DOI: 10.1016/J.Ijms.2013.07.016  0.793
2012 Chubatyi ND, Wang T, McEwen CN. More inclusive or selective ionization for mass spectrometry using obstructive sonic spray ionization and voltage polarity switching. Rapid Communications in Mass Spectrometry : Rcm. 26: 2763-9. PMID 23124667 DOI: 10.1002/Rcm.6402  0.769
2012 Trimpin S, Wang B, Inutan ED, Li J, Lietz CB, Harron A, Pagnotti VS, Sardelis D, McEwen CN. A mechanism for ionization of nonvolatile compounds in mass spectrometry: considerations from MALDI and inlet ionization. Journal of the American Society For Mass Spectrometry. 23: 1644-60. PMID 22791582 DOI: 10.1007/S13361-012-0414-Y  0.816
2012 Pagnotti VS, Chakrabarty S, Harron AF, McEwen CN. Increasing the sensitivity of liquid introduction mass spectrometry by combining electrospray ionization and solvent assisted inlet ionization. Analytical Chemistry. 84: 6828-32. PMID 22742705 DOI: 10.1021/Ac3014115  0.809
2012 Chubatyi ND, Pagnotti VS, Bentzley CM, McEwen CN. High sensitivity steroid analysis using liquid chromatography/solvent-assisted inlet ionization mass spectrometry. Rapid Communications in Mass Spectrometry : Rcm. 26: 887-92. PMID 22396024 DOI: 10.1002/Rcm.6179  0.775
2012 Zydel F, Smith JR, Pagnotti VS, Lawrence RJ, McEwen CN, Capacio BR. Rapid screening of chemical warfare nerve agent metabolites in urine by atmospheric solids analysis probe-mass spectroscopy (ASAP-MS). Drug Testing and Analysis. 4: 308-11. PMID 22383148 DOI: 10.1002/Dta.1331  0.414
2011 Cole RB, McEwen CN. The Asilomar conference on fundamentals of atmospheric pressure ionization techniques, October 8-12, 2010. Journal of the American Society For Mass Spectrometry. 22: 2282-6. PMID 22048903 DOI: 10.1007/S13361-011-0257-Y  0.325
2011 Pagnotti VS, Inutan ED, Marshall DD, McEwen CN, Trimpin S. Inlet ionization: a new highly sensitive approach for liquid chromatography/mass spectrometry of small and large molecules. Analytical Chemistry. 83: 7591-4. PMID 21899326 DOI: 10.1021/Ac201982R  0.572
2011 Pagnotti VS, Chubatyi ND, McEwen CN. Solvent assisted inlet ionization: an ultrasensitive new liquid introduction ionization method for mass spectrometry. Analytical Chemistry. 83: 3981-5. PMID 21528896 DOI: 10.1021/Ac200556Z  0.799
2011 Richards AL, Marshall DD, Inutan ED, McEwen CN, Trimpin S. High-throughput analysis of peptides and proteins by laserspray ionization mass spectrometry. Rapid Communications in Mass Spectrometry : Rcm. 25: 247-50. PMID 21157869 DOI: 10.1002/Rcm.4841  0.469
2011 Inutan ED, Richards AL, Wager-Miller J, Mackie K, McEwen CN, Trimpin S. Laserspray ionization, a new method for protein analysis directly from tissue at atmospheric pressure with ultrahigh mass resolution and electron transfer dissociation Molecular and Cellular Proteomics. 10. PMID 20855542 DOI: 10.1074/Mcp.M110.000760  0.602
2011 McEwen CN, Trimpin S. An alternative ionization paradigm for atmospheric pressure mass spectrometry: Flying elephants from Trojan horses International Journal of Mass Spectrometry. 300: 167-172. DOI: 10.1016/J.Ijms.2010.05.020  0.601
2010 McEwen CN, Pagnotti VS, Inutan ED, Trimpin S. New paradigm in ionization: multiply charged ion formation from a solid matrix without a laser or voltage. Analytical Chemistry. 82: 9164-8. PMID 20973512 DOI: 10.1021/Ac102339Y  0.568
2010 Zydel F, Trimpin S, McEwen CN. Laserspray ionization using an atmospheric solids analysis probe for sample introduction. Journal of the American Society For Mass Spectrometry. 21: 1889-92. PMID 20732821 DOI: 10.1016/J.Jasms.2010.07.005  0.627
2010 McEwen CN, Larsen BS, Trimpin S. Laserspray ionization on a commercial atmospheric pressure-MALDI mass spectrometer ion source: selecting singly or multiply charged ions. Analytical Chemistry. 82: 4998-5001. PMID 20469839 DOI: 10.1021/Ac1006624  0.548
2010 Trimpin S, Inutan ED, Herath TN, McEwen CN. Laserspray ionization, a new atmospheric pressure MALDI method for producing highly charged gas-phase ions of peptides and proteins directly from solid solutions. Molecular & Cellular Proteomics : McP. 9: 362-7. PMID 19955086 DOI: 10.1074/Mcp.M900527-Mcp200  0.627
2010 Trimpin S, Inutan ED, Herath TN, McEwen CN. Matrix-assisted laser desorption/ionization mass spectrometry method for selectively producing either singly or multiply charged molecular ions. Analytical Chemistry. 82: 11-5. PMID 19904915 DOI: 10.1021/Ac902066S  0.639
2009 Trimpin S, Wijerathne K, McEwen CN. Rapid methods of polymer and polymer additives identification: multi-sample solvent-free MALDI, pyrolysis at atmospheric pressure, and atmospheric solids analysis probe mass spectrometry. Analytica Chimica Acta. 654: 20-5. PMID 19850163 DOI: 10.1016/J.Aca.2009.06.050  0.422
2009 Lloyd JA, Harron AF, McEwen CN. Combination atmospheric pressure solids analysis probe and desorption electrospray ionization mass spectrometry ion source. Analytical Chemistry. 81: 9158-62. PMID 19807111 DOI: 10.1021/Ac901324J  0.809
2009 McEwen CN, Larsen BS. Ionization Mechanisms Related to Negative Ion APPI, APCI, and DART Journal of the American Society For Mass Spectrometry. 20: 1518-1521. DOI: 10.1016/J.Jasms.2009.04.010  0.508
2007 Trimpin S, Clemmer DE, McEwen CN. Charge-remote fragmentation of lithiated fatty acids on a TOF-TOF instrument using matrix-ionization. Journal of the American Society For Mass Spectrometry. 18: 1967-72. PMID 17881244 DOI: 10.1016/J.Jasms.2007.08.013  0.49
2007 Trimpin S, Weidner SM, Falkenhagen J, McEwen CN. Fractionation and solvent-free MALDI-MS analysis of polymers using liquid adsorption chromatography at critical conditions in combination with a multisample on-target homogenization/transfer sample preparation method. Analytical Chemistry. 79: 7565-70. PMID 17822306 DOI: 10.1021/Ac070986W  0.486
2007 McEwen C, Gutteridge S. Analysis of the inhibition of the ergosterol pathway in fungi using the atmospheric solids analysis probe (ASAP) method. Journal of the American Society For Mass Spectrometry. 18: 1274-8. PMID 17482834 DOI: 10.1016/J.Jasms.2007.03.032  0.318
2007 Trimpin S, McEwen CN. Multisample preparation methods for the solvent-free MALDI-MS analysis of synthetic polymers. Journal of the American Society For Mass Spectrometry. 18: 377-81. PMID 17113783 DOI: 10.1016/J.Jasms.2006.09.006  0.38
2007 McEwen CN. GC/MS on an LC/MS instrument using atmospheric pressure photoionization International Journal of Mass Spectrometry. 259: 57-64. DOI: 10.1016/J.Ijms.2006.07.004  0.533
2006 Peacock PM, McEwen CN. Mass spectrometry of synthetic polymers. Analytical Chemistry. 78: 3957-64. PMID 16771534 DOI: 10.1021/Ac0606249  0.402
2005 McEwen CN, McKay RG, Larsen BS. Analysis of solids, liquids, and biological tissues using solids probe introduction at atmospheric pressure on commercial LC/MS instruments. Analytical Chemistry. 77: 7826-31. PMID 16316194 DOI: 10.1021/Ac051470K  0.565
2005 McEwen CN, McKay RG. A combination atmospheric pressure LC/MS:GC/MS ion source: advantages of dual AP-LC/MS:GC/MS instrumentation. Journal of the American Society For Mass Spectrometry. 16: 1730-8. PMID 16185892 DOI: 10.1016/J.Jasms.2005.07.005  0.496
2005 Clements A, Johnston MV, Larsen BS, McEwen CN. Fluorescence-based peptide labeling and fractionation strategies for analysis of cysteine-containing peptides. Analytical Chemistry. 77: 4495-502. PMID 16013865 DOI: 10.1021/Ac050247K  0.37
2003 Shang TQ, Ginter JM, Johnston MV, Larsen BS, McEwen CN. Carrier ampholyte-free solution isoelectric focusing as a prefractionation method for the proteomic analysis of complex protein mixtures. Electrophoresis. 24: 2359-68. PMID 12874871 DOI: 10.1002/Elps.200305502  0.313
2002 McEwen CN, Peacock PM. Mass spectrometry of chemical polymers. Analytical Chemistry. 74: 2743-8. PMID 12090661 DOI: 10.1021/Ac020214U  0.404
2002 Cox FJ, Feudale RN, Johnston MV, McEwen CN, Hauptman E. Pyrolysis-photoionization mass spectrometry of ethylene-methyl acrylate copolymers Journal of Analytical and Applied Pyrolysis. 64: 305-312. DOI: 10.1016/S0165-2370(02)00040-2  0.412
2002 Ginter JM, Shang TQ, Johnston MV, Larsen BS, McEwen CN. Solution and gel isoelectric focusing for mass spectrometric analyses of the yeast proteome Proceedings 50th Asms Conference On Mass Spectrometry and Allied Topics. 169-170.  0.337
2000 Lake DA, Johnson MV, McEwen CN, Larsen BS. Sample preparation for high throughput accurate mass analysis by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Rapid Communications in Mass Spectrometry : Rcm. 14: 1008-13. PMID 10844739 DOI: 10.1002/(Sici)1097-0231(20000615)14:11<1008::Aid-Rcm979>3.0.Co;2-T  0.541
2000 Byrd HCM, McEwen CN. The limitations of MALDI-TOF mass spectrometry in the analysis of wide polydisperse polymers Analytical Chemistry. 72: 4568-4576. DOI: 10.1021/Ac0002745  0.511
1999 Blom KF, Larsen BS, McEwen CN. Determining affinity-selected ligands and estimating binding affinities by online size exclusion chromatography/liquid chromatography-mass spectrometry Journal of Combinatorial Chemistry. 1: 82-90. PMID 10746016 DOI: 10.1021/Cc980010K  0.376
1998 Neumer JF, Gordon MD, McEwen CN, Peacock PM, Hill SA, McKay RG, Lazar J, Valentine JR, Van Lenten FJ, Foris A. New polyazaporphine chemistry for the origin of life: A porphine solar energy transducer for origin of life chemistry: A possible synthetic path from HCN to an octaazaporphine via 4H-imidazol-4-imine [(HCN)3] related chemistry Origins of Life and Evolution of the Biosphere. 28: 27-45. PMID 11536854 DOI: 10.1023/A:1006561310605  0.402
1997 McEwen CN, Jackson C, Larsen BS. Instrumental effects in the analysis of polymers of wide polydispersity by MALDI mass spectrometry International Journal of Mass Spectrometry and Ion Processes. 160: 387-394. DOI: 10.1016/S0168-1176(96)04501-6  0.541
1996 Jackson C, Larsen B, McEwen C. Comparison of Most Probable Peak Values As Measured for Polymer Distributions by MALDI Mass Spectrometry and by Size Exclusion Chromatography Analytical Chemistry. 68: 1303-1308. DOI: 10.1021/Ac951103G  0.453
1996 Larsen BS, Simonsick WJ, McEwen CN. Fundamentals of the application of matrix-assisted laser desorption-ionization mass spectrometry to low mass poly(methylmethacrylate) polymers Journal of the American Society For Mass Spectrometry. 7: 287-292. DOI: 10.1016/1044-0305(95)00706-7  0.508
1995 McEwen CN, Simonsick WJ, Larsen BS, Ute K, Hatada K. The fundamentals of applying electrospray ionization mass spectrometry to low mass poly(methyl methacrylate) polymers Journal of the American Society For Mass Spectrometry. 6: 906-911. DOI: 10.1016/1044-0305(95)00476-T  0.482
1995 McEwen CN, Fagan PJ, Krusic PJ. Mass spectrometry of perfluoroalkylated Buckminsterfullerene: a case for sequential gas phase double electron capture International Journal of Mass Spectrometry and Ion Processes. 146: 297-304. DOI: 10.1016/0168-1176(95)04191-M  0.54
1992 McEwen CN, McKay RG, Larsen BS. C60 as a radical sponge Journal of the American Chemical Society. 114: 4412-4414. DOI: 10.1021/Ja00037A064  0.49
1992 McEwen CN, Larsen RS. Accurate mass measurement of proteins using electrospray ionization on a magnetic sector instrument Rapid Communications in Mass Spectrometry. 6: 173-178. DOI: 10.1002/Rcm.1290060304  0.45
1991 Larsen BS, McEwen CN. An electrospray ion source for magnetic sector mass spectrometers Journal of the American Society For Mass Spectrometry. 2: 205-211. DOI: 10.1016/1044-0305(91)80045-9  0.543
1990 Meng CK, McEwen CN, Larsen BS. Peptide sequencing with electrospray ionization on a magnetic sector mass spectrometer Rapid Communications in Mass Spectrometry. 4: 151-155. DOI: 10.1002/Rcm.1290040505  0.536
1990 Meng C, McEwen CN, Larsen BS. Electrospray ionization on a high-performance magnetic-sector mass spectrometer Rapid Communications in Mass Spectrometry. 4: 147-150. DOI: 10.1002/Rcm.1290040504  0.544
1988 McEwen CN, Druliner JD. The fate of thermally produced cyclohexyloxyl radicals as determined by mass spectrometry Journal of the American Chemical Society. 110: 8579-8583. DOI: 10.1021/Ja00234A001  0.324
1986 McEwen CN. Radicals in analytical mass spectrometry Mass Spectrometry Reviews. 5: 521-547. DOI: 10.1002/Mas.1280050405  0.485
1985 McEwen CN, Hass JR. Negative gold ion gun for liquid secondary ion mass spectrometry. Analytical Chemistry. 57: 890-2. PMID 3993956 DOI: 10.1021/ac00281a025  0.482
1984 MCEWEN CN, RUDAT MA. ChemInform Abstract: TANDEM MASS SPECTROMETRY OF RADICAL SPECIES Chemischer Informationsdienst. 15. DOI: 10.1002/chin.198440375  0.322
1983 McEwen CN. Source-mounted cesium ion gun for obtaining liquid matrix secondary ion mass spectra of organics Analytical Chemistry. 55: 967-968. DOI: 10.1021/Ac00257A037  0.548
1983 Rudat MA, McEwen CN. New on-source miniature atomic FAB and alkali ion SIMS sources International Journal of Mass Spectrometry and Ion Physics. 46: 351-354. DOI: 10.1016/0020-7381(83)80124-7  0.527
1982 Fukunaga T, McEwen CN, Simmons HE, De Meijere A. Electron impact induced fragmentation of triquinacene and related compounds-genesis and structure of C9H7 + ions in the gas phase International Journal of Mass Spectrometry and Ion Physics. 44: 277-284. DOI: 10.1016/0020-7381(82)80030-2  0.396
1981 McEwen CN, Rudat MA. Radical trapping in a mass spectrometer ion source. 1 Journal of the American Chemical Society. 103: 4343-4349. DOI: 10.1021/Ja00405A009  0.42
1981 McEwen CN, Rudat MA. Isomerization of gas-phase hydrocarbon ions. Radical trapping. 3 Journal of the American Chemical Society. 103: 4355-4359.  0.398
1979 Maccoll A, Merritt C, McEwen CN. Mass Spectrometry (in two parts): Part A. (Practicai Spectroscopy Series, volume 3). Marcel Dekker, Inc., New York, 1979. pp. 304. $35.00. ISBN 0-8247-6749-7 Organic Mass Spectrometry. 14: 516-516. DOI: 10.1002/oms.1210140913  0.361
1979 McEwen CN, Rudat MA. Fast radical reactions in a mass spectrometer ion source: Radical addition to 7,7,8,8-tetracyanoquinodimethane [28] Journal of the American Chemical Society. 101: 6470-6472.  0.35
1977 McEwen CN. Field desorption and electron impact mass spectra of ionic dyes Analytical Chemistry. 49: 922-928.  0.471
1975 Hunt DF, McEwen CN, Harvey TM. Positive and negative chemical ionization mass spectrometry using a Townsend discharge ion source Analytical Chemistry. 47: 1730-1734. DOI: 10.1021/Ac60361A011  0.564
1975 McEwen CN, Bolinski AG. High resolution field desorption mass spectrometry by peak matching Biological Mass Spectrometry. 2: 112-114. DOI: 10.1002/bms.1200020208  0.47
1973 Hunt DF, McEwen CN. Chemical ionization mass spectrometry studies—VII: Deuterium labeled decanes Organic Mass Spectrometry. 7: 441-448. DOI: 10.1002/Oms.1210070408  0.432
1972 Hunt DF, McEwen CN, Upham RA. Determination of active hydrogen in organic compounds by chemical ionization mass spectrometry Analytical Chemistry. 44: 1292-1294. DOI: 10.1021/ac60315a055  0.333
1972 Hunt DF, McEwen CN, Upham RA. Determination of active hydrogen in organic compounds by chemical ionization mass spectrometry Analytical Chemistry. 44: 1292-1294. DOI: 10.1021/Ac60315A055  0.441
1971 Hunt DF, McEwen CN, Upham RA. Chemical ionization mass spectrometry II. Diferentiation of primary, secondary, and tertiary amines Tetrahedron Letters. 12: 4539-4542. DOI: 10.1016/S0040-4039(01)97524-0  0.363
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