Class information for:
Level 1: AMBIENT IONIZATION//AMBIENT MASS SPECTROMETRY//DIRECT ANALYSIS IN REAL TIME

Basic class information
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 ONCOLOGY//CELL BIOLOGY//BIOCHEMISTRY & MOLECULAR BIOLOGY 2934640
133 3       BIOCHEMICAL RESEARCH METHODS//JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY//PROTEOMICS 67621
193 2             JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY//RAPID COMMUNICATIONS IN MASS SPECTROMETRY//INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 20810
4965 1                   AMBIENT IONIZATION//AMBIENT MASS SPECTROMETRY//DIRECT ANALYSIS IN REAL TIME 1722

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 AMBIENT IONIZATION authKW 1360113 6% 77% 96
2 AMBIENT MASS SPECTROMETRY authKW 1122823 5% 73% 84
3 DIRECT ANALYSIS IN REAL TIME authKW 725075 3% 70% 57
4 DESORPTION ELECTROSPRAY IONIZATION authKW 711502 3% 72% 54
5 ANALYT RUMENTAT DEV address 599316 4% 50% 66
6 JIANGXI MASS SPE OMETRY RUMENTAT address 430796 3% 41% 57
7 ORGAN BIOL MASS SPE OMETRY GRP address 430225 3% 51% 46
8 PAPER SPRAY authKW 305005 1% 83% 20
9 DIRECT ANALYSIS IN REAL TIME DART authKW 302521 1% 72% 23
10 EXTRACTIVE ELECTROSPRAY IONIZATION authKW 223087 1% 76% 16

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Chemistry, Analytical 52276 74% 0% 1268
2 Spectroscopy 26616 34% 0% 584
3 Biochemical Research Methods 15521 32% 0% 547
4 Food Science & Technology 204 5% 0% 88
5 Chemistry, Physical 151 10% 0% 164
6 Medicine, Legal 149 1% 0% 19
7 Chemistry, Multidisciplinary 139 9% 0% 154
8 Physics, Atomic, Molecular & Chemical 132 5% 0% 82
9 Chemistry, Applied 23 2% 0% 33
10 Agriculture, Multidisciplinary 6 1% 0% 14

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ANALYT RUMENTAT DEV 599316 4% 50% 66
2 JIANGXI MASS SPE OMETRY RUMENTAT 430796 3% 41% 57
3 ORGAN BIOL MASS SPE OMETRY GRP 430225 3% 51% 46
4 WM KECK PROTE TECHNOL PLICAT 174378 1% 53% 18
5 THOMSON MASS SPE OMETRY 142110 3% 15% 52
6 CAID 128105 0% 100% 7
7 STATE CHINESE MED MOL PHARMACOL INCUBAT 93706 1% 39% 13
8 PLANT BIOPHYS BIOCHEM 86736 1% 30% 16
9 TECHNA ADV TECHNOL HLTH 65060 0% 44% 8
10 THIN LAYER CHROMATOG 58561 0% 80% 4

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 77818 8% 3% 143
2 RAPID COMMUNICATIONS IN MASS SPECTROMETRY 63337 10% 2% 177
3 ANALYTICAL CHEMISTRY 45815 18% 1% 303
4 JOURNAL OF MASS SPECTROMETRY 38708 5% 3% 84
5 ANALYST 30593 9% 1% 158
6 EUROPEAN JOURNAL OF MASS SPECTROMETRY 10494 1% 2% 24
7 ANALYTICAL METHODS 8047 3% 1% 53
8 ANALYTICAL AND BIOANALYTICAL CHEMISTRY 6982 4% 1% 66
9 INTERNATIONAL JOURNAL OF MASS SPECTROMETRY 6841 3% 1% 51
10 CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 4079 2% 1% 39

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 AMBIENT IONIZATION 1360113 6% 77% 96 Search AMBIENT+IONIZATION Search AMBIENT+IONIZATION
2 AMBIENT MASS SPECTROMETRY 1122823 5% 73% 84 Search AMBIENT+MASS+SPECTROMETRY Search AMBIENT+MASS+SPECTROMETRY
3 DIRECT ANALYSIS IN REAL TIME 725075 3% 70% 57 Search DIRECT+ANALYSIS+IN+REAL+TIME Search DIRECT+ANALYSIS+IN+REAL+TIME
4 DESORPTION ELECTROSPRAY IONIZATION 711502 3% 72% 54 Search DESORPTION+ELECTROSPRAY+IONIZATION Search DESORPTION+ELECTROSPRAY+IONIZATION
5 PAPER SPRAY 305005 1% 83% 20 Search PAPER+SPRAY Search PAPER+SPRAY
6 DIRECT ANALYSIS IN REAL TIME DART 302521 1% 72% 23 Search DIRECT+ANALYSIS+IN+REAL+TIME+DART Search DIRECT+ANALYSIS+IN+REAL+TIME+DART
7 EXTRACTIVE ELECTROSPRAY IONIZATION 223087 1% 76% 16 Search EXTRACTIVE+ELECTROSPRAY+IONIZATION Search EXTRACTIVE+ELECTROSPRAY+IONIZATION
8 SURFACE DESORPTION ATMOSPHERIC PRESSURE CHEMICAL IONIZATION 219609 1% 100% 12 Search SURFACE+DESORPTION+ATMOSPHERIC+PRESSURE+CHEMICAL+IONIZATION Search SURFACE+DESORPTION+ATMOSPHERIC+PRESSURE+CHEMICAL+IONIZATION
9 PAPER SPRAY IONIZATION 206185 1% 87% 13 Search PAPER+SPRAY+IONIZATION Search PAPER+SPRAY+IONIZATION
10 DESI MS 179018 1% 65% 15 Search DESI+MS Search DESI+MS

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.

Classes with closest relation at Level 1


rank cluster_id2 link
1 6318 IMAGING MASS SPECTROMETRY//MASS SPECTROMETRY IMAGING//MALDI IMAGING
2 24524 ATMOSPHERIC PRESSURE PHOTOIONIZATION//ATMOSPHERIC PRESSURE LASER IONIZATION//APLI
3 20611 ANALYT BIOCHEM MASS SPE OMETRY CORE IL//EC MS//DMPK DESIGN BIOTRANSFORMAT
4 6662 SHEATHLESS INTERFACE//CAPILLARY ELECTROPHORESIS MASS SPECTROMETRY//NANOELECTROSPRAY
5 8761 ION MOBILITY SPECTROMETRY//FAIMS//DIFFERENTIAL MOBILITY SPECTROMETRY
6 6851 QUADRUPOLE ION TRAP//QUADRUPOLE MASS FILTER//RECTILINEAR ION TRAP
7 17001 DRIED BLOOD SPOTS//BIOANALYSIS//DRIED BLOOD SPOT DBS
8 2876 MALDI//MATRIX ASSISTED LASER DESORPTION IONIZATION//RAPID COMMUNICATIONS IN MASS SPECTROMETRY
9 2030 JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY//NONCOVALENT COMPLEXES//ION MOBILITY
10 21498 TATP//TRIACETONE TRIPEROXIDE//TRIACETONE TRIPEROXIDE TATP

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