Class information for:
Level 1: SINGLE PHOTON IONIZATION//SUPERSONIC JET SPECTROMETRY//LASER MASS SPECTROMETRY

Basic class information

Class id #P Avg. number of
references
Database coverage
of references
12222 922 30.6 62%



Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes

The table includes all classes above and classes immediately below the current class.



Cluster id Level Cluster label #P
0 4 BIOCHEMISTRY & MOLECULAR BIOLOGY//CELL BIOLOGY//ONCOLOGY 4064930
157 3       JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY//BIOCHEMICAL RESEARCH METHODS//INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 61558
1201 2             TOF SIMS//IMAGING MASS SPECTROMETRY//MALDI 9229
12222 1                   SINGLE PHOTON IONIZATION//SUPERSONIC JET SPECTROMETRY//LASER MASS SPECTROMETRY 922

Terms with highest relevance score



rank Term termType Chi square Shr. of publ. in
class containing
term
Class's shr. of
term's tot. occurrences
#P with
term in
class
1 SINGLE PHOTON IONIZATION authKW 390923 2% 54% 22
2 SUPERSONIC JET SPECTROMETRY authKW 298054 1% 100% 9
3 LASER MASS SPECTROMETRY authKW 191042 2% 38% 15
4 RESONANCE ENHANCED MULTIPHOTON IONIZATION authKW 183955 2% 28% 20
5 ABT UMWELT PROZES EM address 178825 1% 60% 9
6 REMPI TOFMS authKW 147517 1% 64% 7
7 LASER DESORPTION authKW 133495 3% 16% 25
8 JET REMPI authKW 132468 0% 100% 4
9 MULTIPHOTON IONIZATION authKW 126354 3% 14% 27
10 JOINT MASS SPE OMETRY address 114164 2% 17% 20

Web of Science journal categories



Rank Term Chi square Shr. of publ. in
class containing
term
Class's shr. of
term's tot. occurrences
#P with
term in
class
1 Chemistry, Analytical 7413 39% 0% 356
2 Spectroscopy 4834 20% 0% 186
3 Physics, Atomic, Molecular & Chemical 2659 22% 0% 202
4 Chemistry, Physical 1324 27% 0% 249
5 Instruments & Instrumentation 409 7% 0% 68
6 Biochemical Research Methods 293 7% 0% 63
7 Thermodynamics 62 3% 0% 25
8 Optics 20 3% 0% 32
9 Physics, Applied 19 6% 0% 58
10 Environmental Sciences 8 3% 0% 32

Address terms



Rank Term Chi square Shr. of publ. in
class containing
term
Class's shr. of
term's tot. occurrences
#P with
term in
class
1 ABT UMWELT PROZES EM 178825 1% 60% 9
2 JOINT MASS SPE OMETRY 114164 2% 17% 20
3 MACHINERY HEADQUARTERS 74512 0% 75% 3
4 FED CRIMINAL POLICE OFF BKA 66234 0% 100% 2
5 KOOPERAT GRP ANALYT KOMPLEXER MOL SYST 66234 0% 100% 2
6 FUTURE CHEM 64713 4% 6% 34
7 OKOL CHEM 59249 2% 10% 18
8 LEHRSTUHL OKOL CHEM UMWELTANALYT 53398 1% 16% 10
9 LEHRSTUHL PHYS CHEM ANALYT 52983 0% 40% 4
10 CHAIR OURCE STRATEGY 48165 0% 36% 4

Journals



Rank Term Chi square Shr. of publ. in
class containing
term
Class's shr. of
term's tot. occurrences
#P with
term in
class
1 ANALYTICAL CHEMISTRY 21350 16% 0% 152
2 INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES 10324 2% 1% 21
3 INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 6474 4% 1% 36
4 EUROPEAN MASS SPECTROMETRY 4682 1% 2% 6
5 ANALYTICAL INSTRUMENTATION 3367 0% 3% 4
6 ANALYTICAL SCIENCES 3291 3% 0% 27
7 PIANO & KEYBOARD 3009 0% 9% 1
8 APPLIED PHYSICS 2778 1% 2% 5
9 JOURNAL OF PHYSICAL CHEMISTRY 2318 5% 0% 42
10 APPLIED SPECTROSCOPY 2291 3% 0% 24

Author Key Words



Rank Term Chi square Shr. of publ. in
class containing
term
Class's shr. of
term's tot. occurrences
#P with
term in
class
LCSH search Wikipedia search
1 SINGLE PHOTON IONIZATION 390923 2% 54% 22 Search SINGLE+PHOTON+IONIZATION Search SINGLE+PHOTON+IONIZATION
2 SUPERSONIC JET SPECTROMETRY 298054 1% 100% 9 Search SUPERSONIC+JET+SPECTROMETRY Search SUPERSONIC+JET+SPECTROMETRY
3 LASER MASS SPECTROMETRY 191042 2% 38% 15 Search LASER+MASS+SPECTROMETRY Search LASER+MASS+SPECTROMETRY
4 RESONANCE ENHANCED MULTIPHOTON IONIZATION 183955 2% 28% 20 Search RESONANCE+ENHANCED+MULTIPHOTON+IONIZATION Search RESONANCE+ENHANCED+MULTIPHOTON+IONIZATION
5 REMPI TOFMS 147517 1% 64% 7 Search REMPI+TOFMS Search REMPI+TOFMS
6 LASER DESORPTION 133495 3% 16% 25 Search LASER+DESORPTION Search LASER+DESORPTION
7 JET REMPI 132468 0% 100% 4 Search JET+REMPI Search JET+REMPI
8 MULTIPHOTON IONIZATION 126354 3% 14% 27 Search MULTIPHOTON+IONIZATION Search MULTIPHOTON+IONIZATION
9 PHOTO IONISATION 105973 0% 80% 4 Search PHOTO+IONISATION Search PHOTO+IONISATION
10 PHOTOEMISSION ELECTRON 99351 0% 100% 3 Search PHOTOEMISSION+ELECTRON Search PHOTOEMISSION+ELECTRON

Core articles

The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.



Rank Reference # ref.
in cl.
Shr. of ref. in
cl.
Citations
1 STREIBEL, T , ZIMMERMANN, R , (2014) RESONANCE-ENHANCED MULTIPHOTON IONIZATION MASS SPECTROMETRY (REMPI-MS): APPLICATIONS FOR PROCESS ANALYSIS.ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, VOL 7. VOL. 7. ISSUE . P. 361 -381 62 60% 8
2 ZIMMERMANN, R , WELTHAGEN, W , GROGER, T , (2008) PHOTO-IONISATION MASS SPECTROMETRY AS DETECTION METHOD FOR GAS CHROMATOGRAPHY - OPTICAL SELECTIVITY AND MULTIDIMENSIONAL COMPREHENSIVE SEPARATIONS.JOURNAL OF CHROMATOGRAPHY A. VOL. 1184. ISSUE 1-2. P. 296-308 50 71% 15
3 IMASAKA, T , (2001) SUPERSONIC JET SPECTROMETRY (REVIEW) - FUNDAMENTALS AND APPLICATIONS TO DIOXIN ANALYSIS.BUNSEKI KAGAKU. VOL. 50. ISSUE 1. P. 3-30 52 79% 0
4 UCHIMURA, T , (2005) SENSITIVE AND SELECTIVE ANALYSIS OF POLYCHLORINATED DIBENZO-P-DIOXINS/DIBENZOFURANS AND THEIR PRECURSORS BY SUPERSONIC JET/RESONANCE-ENHANCED MULTIPHOTON IONIZATION/TIME-OF-FLIGHT MASS SPECTROMETRY.ANALYTICAL SCIENCES. VOL. 21. ISSUE 12. P. 1395-1400 46 74% 11
5 HANLEY, L , ZIMMERMANN, R , (2009) LIGHT AND MOLECULAR IONS: THE EMERGENCE OF VACUUM UV SINGLE-PHOTON IONIZATION IN MS.ANALYTICAL CHEMISTRY. VOL. 81. ISSUE 11. P. 4174 -4182 35 66% 91
6 UCHIMURA, T , (2009) DEVELOPMENT OF SENSITIVE AND SELECTIVE MULTIPHOTON IONIZATION/MASS SPECTROMETRY.BUNSEKI KAGAKU. VOL. 58. ISSUE 3. P. 119 -126 28 88% 1
7 IMASAKA, T , MOORE, DS , VO-DINH, T , (2003) CRITICAL ASSESSMENT: USE OF SUPERSONIC JET SPECTROMETRY FOR COMPLEX MIXTURE ANALYSIS - (IUPAC TECHNICAL REPORT).PURE AND APPLIED CHEMISTRY. VOL. 75. ISSUE 7. P. 975 -998 32 74% 20
8 MUHLBERGER, F , HAFNER, K , KAESDORF, S , FERGE, T , ZIMMERMANN, R , (2004) COMPREHENSIVE ON-LINE CHARACTERIZATION OF COMPLEX GAS MIXTURES BY QUASI-SIMULTANEOUS RESONANCE-ENHANCED MULTIPHOTON IONIZATION, VACUUM-UV SINGLE-PHOTON IONIZATION, AND ELECTRON IMPACT IONIZATION IN A TIME-OF-FLIGHT MASS SPECTROMETER: SETUP AND INSTRUMENT CHARACTERIZATION.ANALYTICAL CHEMISTRY. VOL. 76. ISSUE 22. P. 6753-6764 29 74% 60
9 RINK, JE , BOESL, U , (2003) MASS-SELECTED RESONANCE-ENHANCED MULTIPHOTON IONISATION SPECTRA OF LASER-DESORBED MOLECULES FOR ENVIRONMENTAL ANALYSIS: 16 REPRESENTATIVE POLYCYCLIC AROMATIC COMPOUNDS.EUROPEAN JOURNAL OF MASS SPECTROMETRY. VOL. 9. ISSUE 1. P. 23 -32 24 89% 10
10 WATANABE-EZOE, Y , LI, X , IMASAKA, T , UCHIMURA, T , IMASAKA, T , (2010) GAS CHROMATOGRAPHY/FEMTOSECOND MULTIPHOTON IONIZATION/TIME-OF-FLIGHT MASS SPECTROMETRY OF DIOXINS.ANALYTICAL CHEMISTRY. VOL. 82. ISSUE 15. P. 6519 -6525 20 87% 5

Classes with closest relation at Level 1



Rank Class id link
1 30025 HELIUM ATOM MICROSCOPY//CNR IMEM//SCANNING HELIUM MICROSCOPE
2 21296 ION MIRROR//MULTI TURN TIME OF FLIGHT MASS SPECTROMETER//REFLECTRON
3 19562 NITROMETHANE//CH3NO2//IONIZED STATES
4 13619 RRKM CALCULATION//MOL DYNAM GRP//CREAT INITIAT CONTROL REACT DYNAM
5 24319 ATMOSPHERIC PRESSURE PHOTOIONIZATION//ATMOSPHERIC PRESSURE LASER IONIZATION//APLI
6 11777 RESONANCE IONIZATION MASS SPECTROMETRY//KR 85//RESONANT LASER ABLATION
7 28136 2 PHOTON ABSORPTION SPECTRUM//ANTIAROMATIC MOLECULE//DEPARTIMENTO CHIM SPETTROSCOPIA MOLEC
8 2474 THRESHOLD IONIZATION//PHYS CHEM ELEKTROCHEM 1//RESONANT TWO PHOTON IONIZATION
9 16308 ATOFMS//SINGLE PARTICLE MASS SPECTROMETRY//AERODYNAMIC LENS
10 15097 FOURIER TRANSFORM LASER MICROPROBE MASS SPECTROMETRY//GALDI//GEOMATRIX

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