Aviv Amirav

2025

Cold EI—The Way to Improve GC-MS and Increase Its Range of Applications

Amirav, A., Neumark, B., Elkabets, O. & Yakovchuk, A., 2025, (Accepted/In press) In: Mass Spectrometry Reviews.

Research output: Contribution to journal › Review article › peer-review

Open Access

NIST Library Identification Probabilities Are the Highest with Cold EI Mass Spectra

Amirav, A., Neumark, B., Elkabets, O. & Alon, T., 1 Jan 2025, In: Journal of the American Society for Mass Spectrometry. 36, 1, p. 221-228 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

2024

Comparison of different fast gas chromatography - mass spectrometry techniques (Cold EI, MS/MS, and HRMS) for the analysis of pyrethroid insecticide residues in food

Michlig, N., Amirav, A., Neumark, B. & Lehotay, S. J., 23 Jul 2024, In: Analytical Methods. 16, 32, p. 5599-5618 20 p.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Cool Classical EI - A New Standard in EI and Its Many Benefits

Neumark, B., Elkabets, O. & Amirav, A., 7 Aug 2024, In: Journal of the American Society for Mass Spectrometry. 35, 8, p. 2020-2027 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

Sample Injection for Real-Time Analysis (SIRTA) Using GC-MS with Cold EI

Elkabets, O., Neumark, B. & Amirav, A., 7 Feb 2024, In: Journal of the American Society for Mass Spectrometry. 35, 2, p. 378-385 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

2023

Fast saliva analysis by GC–MS with Cold EI and Open Probe Fast GC–MS with Cold EI for the detection of cannabis usage

Elkabets, O., Neumark, B. & Amirav, A., Dec 2023, In: Journal of Mass Spectrometry. 58, 12, e4981.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

Sensitivity comparison of gas chromatography–mass spectrometry with Cold EI and standard EI

Amirav, A. & Yakovchuk, A., Jun 2023, In: Journal of Mass Spectrometry. 58, 6, e4950.

Research output: Contribution to journal › Article › peer-review

Open Access

8 Scopus citations

2022

Nitrogen and hydrogen as carrier and make-up gases for GC-MS with Cold EI

Margolin Eren, K. J., Prest, H. F. & Amirav, A., May 2022, In: Journal of Mass Spectrometry. 57, 5, e4830.

Research output: Contribution to journal › Article › peer-review

Open Access

17 Scopus citations

Whole blood analysis for medical diagnostics by GC-MS with Cold EI

Neumark, B., Elkabets, O., Shefer, G., Buch, A., Stern, N. & Amirav, A., Jul 2022, In: Journal of Mass Spectrometry. 57, 7, e4873.

Research output: Contribution to journal › Article › peer-review

Open Access

5 Scopus citations

2021

Cannabis and its cannabinoids analysis by gas chromatography–mass spectrometry with Cold EI

Amirav, A., Neumark, B., Margolin Eren, K. J., Fialkov, A. B. & Tal, N., Jun 2021, In: Journal of Mass Spectrometry. 56, 6, e4726.

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Cold Electron Ionization (EI) Is Not a Supplementary Ion Source to Standard EI. It is a Highly Superior Replacement Ion Source

Amirav, A., Fialkov, A. B., Gordin, A., Elkabets, O. & Margolin Eren, K. J., 3 Nov 2021, In: Journal of the American Society for Mass Spectrometry. 32, 11, p. 2631-2635 5 p.

Research output: Contribution to journal › Review article › peer-review

Open Access

15 Scopus citations

Comparison of Isotope Abundance Analysis and Accurate Mass Analysis in their Ability to Provide Elemental Formula Information

Alon, T. & Amirav, A., 7 Apr 2021, In: Journal of the American Society for Mass Spectrometry. 32, 4, p. 929-935 7 p.

Research output: Contribution to journal › Article › peer-review

Open Access

10 Scopus citations

2020

A comparison of electron ionization mass spectra obtained at 70 eV, low electron energies, and with cold EI and their NIST library identification probabilities

Margolin Eren, K. J., Elkabets, O. & Amirav, A., Dec 2020, In: Journal of Mass Spectrometry. 55, 12, e4646.

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Analysis of impurities in pharmaceuticals by LC-MS with cold electron ionization

Tsizin, S., Fialkov, A. B. & Amirav, A., 1 Oct 2020, In: Journal of Mass Spectrometry. 55, 10, e4587.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Doubly Charged Molecular Ions in GC-MS with Cold EI

Margolin Eren, K. J., Fialkov, A. B., Keshet, U., Tsizin, S. & Amirav, A., 5 Feb 2020, In: Journal of the American Society for Mass Spectrometry. 31, 2, p. 347-354 8 p.

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Electron Ionization Mass Spectrometry for Both Liquid and Gas Chromatography in One System without the Need for Hardware Adjustments

Tsizin, S., Fialkov, A. B. & Amirav, A., 5 Aug 2020, In: Journal of the American Society for Mass Spectrometry. 31, 8, p. 1713-1721 9 p.

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

GC–MS with photoionization of cold molecules in supersonic molecular beams—Approaching the softest ionization method

Fialkov, A. B., Ikonen, E., Laaksonen, T. & Amirav, A., 1 Sep 2020, In: Journal of Mass Spectrometry. 55, 9, e4516.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Less than one minute low-pressure gas chromatography - mass spectrometry

Fialkov, A. B., Lehotay, S. J. & Amirav, A., 8 Feb 2020, In: Journal of Chromatography A. 1612, 460691.

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

2019

Improved hydrocarbon mixtures analysis by supersonic molecular beam GC-MS with cold EI

Amirav, A., Tartakovsky, K., Rabaev, M., Sinelnikov, R., Fialkov, A. B. & Alon, T., 2019.

Research output: Contribution to conference › Paper › peer-review

The pre-separation of oxygen containing compounds in oxidised heavy paraffinic fractions and their identification by GC-MS with supersonic molecular beams.

Potgieter, H., de Coning, P., Bekker, R., Rohwer, E. & Amirav, A., Apr 2019, In: Journal of Mass Spectrometry. 54, 4, p. 328-341 14 p.

Research output: Contribution to journal › Article › peer-review

Open Access

6 Scopus citations

2018

Covalent functionalization of solid cellulose by divergent synthesis of chemically active dendrons

Anavi, D., Popowski, Y., Slor, G., Segal, M., Frid, L., Amir, R. J., Amirav, A. & Amir, E., 15 Sep 2018, In: Journal of Polymer Science, Part A: Polymer Chemistry. 56, 18, p. 2103-2114 12 p.

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Electron Ionization LC-MS: What Is It and Why Use It?

Famiglini, G., Palma, P., Termopoli, V., Cappiello, A., Tsizin, S., Seemann, B., Alon, T., Fialkov, A. B. & Amirav, A., 2018, In: Comprehensive Analytical Chemistry. 79, p. 1-28 28 p.

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Pesticide analysis by pulsed flow modulation GCxGC-MS with Cold EI—an alternative to GC-MS-MS

Keshet, U., Goldshlag, P. & Amirav, A., 1 Sep 2018, In: Analytical and Bioanalytical Chemistry. 410, 22, p. 5507-5519 13 p.

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

2017

Comparison of electrospray LC–MS, LC–MS with Cold EI and GC–MS with Cold EI for sample identification

Tsizin, S., Bokka, R., Keshet, U., Alon, T., Fialkov, A. B., Tal, N. & Amirav, A., Nov 2017, In: International Journal of Mass Spectrometry. 422, p. 119-125 7 p.

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Fast Heroin and Cocaine Analysis by GC–MS with Cold EI: The Important Role of Flow Programming

Amirav, A., 1 Feb 2017, In: Chromatographia. 80, 2, p. 295-300 6 p.

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Open Probe fast GC–MS — combining ambient sampling ultra-fast separation and in-vacuum ionization for real-time analysis

Keshet, U., Alon, T., Fialkov, A. B. & Amirav, A., 1 Jul 2017, In: Journal of Mass Spectrometry. 52, 7, p. 417-426 10 p.

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Second hydrogen atom abstraction by molecular ions

Tsizin, S., Seemann, B., Alon, T. & Amirav, A., Oct 2017, In: Journal of Mass Spectrometry. 52, 10, p. 638-642 5 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

2016

A New Pulsed Flow Modulation GC × GC–MS with Cold EI System and Its Application for Jet Fuel Analysis

Keshet, U., Fialkov, A. B., Alon, T. & Amirav, A., 1 Jun 2016, In: Chromatographia. 79, 11-12, p. 741-754 14 p.

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Resolving detailed molecular structures in complex organic mixtures and modeling their secondary organic aerosol formation

Goodman-Rendall, K. A. S., Zhuang, Y. R., Amirav, A. & Chan, A. W. H., 1 Mar 2016, In: Atmospheric Environment. 128, p. 276-285 10 p.

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

2015

Electron ionization LC-MS with supersonic molecular beams - The new concept, benefits and applications

Seemann, B., Alon, T., Tsizin, S., Fialkov, A. B. & Amirav, A., 1 Nov 2015, In: Journal of Mass Spectrometry. 50, 11, p. 1252-1263 12 p.

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

How enhanced molecular ions in Cold EI improve compound identification by the NIST library

Alon, T. & Amirav, A., 15 Dec 2015, In: Rapid Communications in Mass Spectrometry. 29, 23, p. 2287-2292 6 p.

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Soft Cold EI - Approaching molecular ion only with electron ionization

Amirav, A., Keshet, U. & Danon, A., 15 Nov 2015, In: Rapid Communications in Mass Spectrometry. 29, 21, p. 1954-1960 7 p.

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

2014

Open Probe fast GC-MS - Real time analysis with separation

Amirav, A., Keshet, U., Alon, T. & Fialkov, A. B., 1 Oct 2014, In: International Journal of Mass Spectrometry. 371, p. 47-53 7 p.

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

2012

Measurement and optimization of organic chemical reaction yields by GC-MS with supersonic molecular beams

Amirav, A., Gordin, A., Hagooly, Y., Rozen, S., Belgorodsky, B., Seemann, B., Marom, H., Gozin, M. & Fialkov, A. B., 22 Jul 2012, In: Tetrahedron. 68, 29, p. 5793-5799 7 p.

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

2011

A low thermal mass fast gas chromatograph and its implementation in fast gas chromatography mass spectrometry with supersonic molecular beams

Fialkov, A. B., Moragn, M. & Amirav, A., 30 Dec 2011, In: Journal of Chromatography A. 1218, 52, p. 9375-9383 9 p.

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

2010

Open probe: A device for ultra fast electron ionization mass spectrometry analysis

Poliak, M., Gordin, A. & Amirav, A., 1 Jul 2010, In: Analytical Chemistry. 82, 13, p. 5777-5782 6 p.

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

2009

Analysis of quinocide in unprocessed primaquine diphosphate and primaquine diphosphate tablets using gas chromatography-mass spectrometry with supersonic molecular beams

Brondz, I., Fialkov, A. B. & Amirav, A., 30 Jan 2009, In: Journal of Chromatography A. 1216, 5, p. 824-829 6 p.

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Erratum to "Analysis of quinocide in unprocessed primaquine diphosphate and primaquine diphosphate tablets using gas chromatography-mass spectrometry with supersonic molecular beams" [J. Chromatogr. A 1216 (2009) 824-829] (DOI:10.1016/j.chroma.2008.11.043)

Brondz, I., Fialkov, A. B. & Amirav, A., 20 Mar 2009, In: Journal of Chromatography A. 1216, 12, p. 2609-2610 2 p.

Research output: Contribution to journal › Comment/debate

Open Access

Isotope abundance analysis for improved sample identification with tandem mass spectrometry

Alon, T. & Amirav, A., 15 Dec 2009, In: Rapid Communications in Mass Spectrometry. 23, 23, p. 3668-3672 5 p.

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

2008

Classical electron ionization mass spectra in gas chromatography/mass spectrometry with supersonic molecular beams

Gordin, A., Fialkov, A. B. & Amirav, A., Sep 2008, In: Rapid Communications in Mass Spectrometry. 22, 17, p. 2660-2666 7 p.

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Gas chromatography-mass spectrometry with supersonic molecular beams

Amirav, A., Gordin, A., Poliak, M. & Fialkov, A. B., Feb 2008, In: Journal of Mass Spectrometry. 43, 2, p. 141-163 23 p.

Research output: Contribution to journal › Review article › peer-review

Open Access

125 Scopus citations

Hydrocarbons and fuels analyses with the supersonic gas chromatography mass spectrometry-The novel concept of isomer abundance analysis

Fialkov, A. B., Gordin, A. & Amirav, A., 27 Jun 2008, In: Journal of Chromatography A. 1195, 1-2, p. 127-135 9 p.

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Identification and confirmation of chemical residues in food by chromatography-mass spectrometry and other techniques

Lehotay, S. J., Mastovska, K., Amirav, A., Fialkov, A. B., Martos, P. A., Kok, A. D. & Fernández-Alba, A. R., Dec 2008, In: TrAC - Trends in Analytical Chemistry. 27, 11, p. 1070-1090 21 p.

Research output: Contribution to journal › Article › peer-review

126 Scopus citations

Pulsed flow modulation comprehensive two-dimensional gas chromatography

Poliak, M., Kochman, M. & Amirav, A., 4 Apr 2008, In: Journal of Chromatography A. 1186, 1-2, p. 189-195 7 p.

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Pulsed flow modulation two-dimensional comprehensive gas chromatography-tandem mass spectrometry with supersonic molecular beams

Poliak, M., Fialkov, A. B. & Amirav, A., 7 Nov 2008, In: Journal of Chromatography A. 1210, 1, p. 108-114 7 p.

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

2007

Fast, practical, and effective approach for the analysis of hazardous chemicals in the food supply

United States-Israel Binational Agricultural Research and Development Fund, 2007, [Bet Dagan, Israel]: BARD.

Research output: Book/Report › Report › peer-review

Sensitivity and noise in GC-MS: Achieving low limits of detection for difficult analytes

Fialkov, A. B., Steiner, U., Lehotay, S. J. & Amirav, A., 15 Jan 2007, In: International Journal of Mass Spectrometry. 260, 1, p. 31-48 18 p.

Research output: Contribution to journal › Article › peer-review

67 Scopus citations

2006

A comparison of SnifProbe and SPME for aroma sampling

Poliak, M., Kochman, M., Gordin, A. & Amirav, A., Oct 2006, In: Chromatographia. 64, 7-8, p. 487-493 7 p.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

A new type of GC-MS with advanced capabilities

Fialkov, A. B., Steiner, U., Jones, L. & Amirav, A., 15 Mar 2006, In: International Journal of Mass Spectrometry. 251, 1, p. 47-58 12 p.

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

A simple and inexpensive "solvent in silicone tube extraction" approach and its evaluation in the gas chromatographic analysis of pesticides in fruits and vegetables

Jánská, M., Lehotay, S. J., Maštovská, K., Hajšlová, J., Alon, T. & Amirav, A., Jan 2006, In: Journal of Separation Science. 29, 1, p. 66-80 15 p.

Research output: Contribution to journal › Article › peer-review

Open Access

19 Scopus citations

Aviv Amirav

Research output

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