Research Topics
| Athula B AttygalleSummaryAffiliation: Stevens Institute of Technology Country: USA Publications
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Detail Information
Publications
"Meta elimination," a diagnostic fragmentation in mass spectrometryAthula B Attygalle
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Am Soc Mass Spectrom 22:1515-25. 2011..For example, the peaks observed at m/z 58, 86, 120, 128, and 170 from acetamido-, butamido-, benzamido, heptamido-, and decanamido-benzoates, respectively, were specific only to the spectra of meta isomers...
Mild route to generate gaseous metal anionsAthula B Attygalle
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Rapid Commun Mass Spectrom 25:681-8. 2011..The metal atom acquires a partial negative charge in the intermediate structure. Copyright © 2011 John Wiley & Sons, Ltd...- Biosynthesis of tiglic, ethacrylic, and 2-methylbutyric acids in a carabid beetle, Pterostichus (Hypherpes) californicusAthula B Attygalle
Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Chem Ecol 33:963-70. 2007..Consequently, ethacrylic acid was found to preferentially accumulate the deuterium labeling from [2,3,4,4-(2)H(4)]isoleucine during our biosynthetic experiments... - Generation of gas-phase sodiated arenes such as [(Na3(C6H4)+] from benzene dicarboxylate saltsAthula B Attygalle
Center for Mass Spectrometry, Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Mass Spectrom 45:72-81. 2010.... - Orange/lemon-scented beetles: opposite enantiomers of limonene as major constituents in the defensive secretion of related carabidsAthula B Attygalle
Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Naturwissenschaften 96:1443-9. 2009..Of about 500 carabid species that have been chemically investigated, this is the first report of the presence of such complex mixtures of monoterpenes in their defensive secretions... - Reactivity of gaseous sodiated ions derived from benzene dicarboxylate salts toward residual water in the collision gasChang Ching Chan
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Mass Spectrom 45:1130-8. 2010.... - Defensive chemicals of two species of Trachypachus MotschulskiAthula B Attygalle
Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
J Chem Ecol 30:577-88. 2004.... - Desorption ionization by charge exchange (DICE) for sample analysis under ambient conditions by mass spectrometryChang Ching Chan
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
J Am Soc Mass Spectrom 21:1554-60. 2010..In contrast, when the same samples were exposed to a spray of water/methanol/formic acid under customary DESI-like (positive-ion mode) conditions, no peaks representing the analytes were observed... - Collision-induced dissociation mass spectra of glucosinolate anionsJason B Bialecki
Department of Chemistry, Chemical Biology and Biomedical Engineering, Center for Mass Spectrometry, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Mass Spectrom 45:272-83. 2010..Similarly, the m/z 201 peak in the spectrum of phenyl glucosinolate was attributed to C(6)H(5)-C(=S)OSO(2)(-)... - Formation of the bisulfite anion (HSO(3) (-) , m/z 81) upon collision-induced dissociation of anions derived from organic sulfonic acidsFreneil B Jariwala
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Mass Spectrom 47:529-38. 2012.... - Generation and detection of gaseous W12O41-* and other tungstate anions by laser desorption ionization mass spectrometryJulius Pavlov
Department of Civil, Environmental, and Ocean Engineering, Center for Environmental Systems, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
J Am Soc Mass Spectrom 20:1782-9. 2009.... - Low-energy collision-induced fragmentation of negative ions derived from diesters of aliphatic dicarboxylic acids made with hydroxybenzoic acidsUpul Nishshanka
Center for Mass Spectrometry, Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Mass Spectrom 43:1502-11. 2008..Appropriate deuterium labeling experiments demonstrated that the hydrogen atom transferred for the formation of the m/z 137 ion in ortho compounds is specifically derived from the alpha position of the dicarboxylic acid moiety... - Quantification and remote detection of nitro explosives by helium plasma ionization mass spectrometry (HePI-MS) on a modified atmospheric pressure source designed for electrospray ionizationZhihua Yang
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Mass Spectrom 47:845-52. 2012..In fact, passing over hot copper appears to be a practical way of removing TNT or other nitroaromatics from ambient air... - Characterization of (E,E)-farnesol and its fatty acid esters from anal scent glands of nutria (Myocastor coypus) by gas chromatography-mass spectrometry and gas chromatography-infrared spectrometryHyeunjoo Lee
Center for Mass Spectrometry, Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Chromatogr A 1165:136-43. 2007..Finally, the GC retention indices of farnesol and farnesyl ester isomers determined from authentic samples were used to confirm all identifications... - Location of double bonds in diene and triene acetates by partial reduction followed by methylthiolationGulab N Jham
Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
J Chromatogr A 1077:57-67. 2005..In addition, a new procedure is described using ND2ND2/H2O2 and DMDS derivative formation capable of distinguishing between the double bond positions in (Z)-9-tetradecenyl acetate and (9Z,12E)-9,12-tetradecadienyl acetate (1:1 mixture)... - Evading metal adduct formation during desorption-ionization mass spectrometryChang Ching Chan
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Rapid Commun Mass Spectrom 24:2838-42. 2010..Consequently, peaks for metal adducts that are commonly observed with other desorption techniques are minimal or absent in the spectra recorded by the DICE method... - Enhancement of laser desorption ionization mass spectrometric signals of cesium iodide by elemental sulfurAndrew Kruegel
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Rapid Commun Mass Spectrom 27:763-6. 2013.... - Direct detection of inorganic nitrate salts by ambient pressure helium-plasma ionization mass spectrometryJulius Pavlov
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
Anal Chem 85:278-82. 2013..With the use of (15)N-labeled nitrate (m/z 63), the limit of detection was determined to be as low as 200 fg... - Collision-induced dissociation mass spectra of positive ions derived from tetrahydropyranyl (THP) ethers of primary alcoholsJosef Ruzicka
Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Mass Spectrom 46:12-23. 2011..A proton transfer from the carbenium ion to the aldehyde is followed by elimination of an alkene. Copyright © 2010 John Wiley & Sons, Ltd... - Aliphatic hydrocarbon spectra by helium ionization mass spectrometry (HIMS) on a modified atmospheric-pressure source designed for electrospray ionizationZhihua Yang
Center for Mass Spectrometry, Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
J Am Soc Mass Spectrom 22:1395-402. 2011..Moreover, mass spectrometric results obtained by exposing unsaturated hydrocarbons to D(2)O vapor in an HPIS-MS instrument confirmed that the proton donor for ionization of unsaturated hydrocarbons is protonated water... - Hydroxycarbonyl anion (m/z 45), a diagnostic marker for alpha-hydroxy carboxylic acidsJason B Bialecki
Center for Mass Spectrometry, Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
J Mass Spectrom 44:252-9. 2009..Moreover, the two oxygen atoms eliminated for the HCOOH loss originate exclusively from the carboxylate group... - LC/MS characterization of undesired products formed during iodoacetamide derivatization of sulfhydryl groups of peptidesZhihua Yang
Center for Mass Spectrometry, Department of Chemistry and Chemical Biology, Stevens Institute of Technology, NJ 07030, USA
J Mass Spectrom 42:233-43. 2007..On the other hand, when the derivatization takes place at the carboxylic group, the y-series ions are markedly observed in the spectra of these undesired O-carboxamidomethyl derivatives... - An unprecedented rearrangement in collision-induced mass spectrometric fragmentation of protonated benzylaminesJason Bialecki
Center for Mass Spectrometry, Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA
J Mass Spectrom 41:1195-204. 2006..The postulated mechanisms enabled proper prediction of mass spectral fragments expected from protonated butenafine, an antifungal drug... - Reptilian chemistry: volatile compounds from paracloacal glands of the American crocodile (Crocodylus acutus)Silvina García-Rubio
Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853 1301, USA
J Chem Ecol 28:769-81. 2002..Major differences are indicated in the composition of the paracloacal gland secretion of C. acutus and that of another crocodylid, the African dwarf crocodile (Osteolaemus tetraspis)...