Class information for:
Level 1: ANALYT BIOCHEM MASS SPE OMETRY//4 AMINO PHENAZONE//AMMONIA CHEMICAL IONIZATION

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
18614 477 23.1 36%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
1130 9162 ORGANIC MASS SPECTROMETRY//INTERNATIONAL JOURNAL OF MASS SPECTROMETRY//ION NEUTRAL COMPLEXES

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 ANALYT BIOCHEM MASS SPE OMETRY Address 1 27% 1% 3
2 4 AMINO PHENAZONE Author keyword 1 50% 0% 1
3 AMMONIA CHEMICAL IONIZATION Author keyword 1 50% 0% 1
4 CHLORINE SPECIFIC DETECTION Author keyword 1 50% 0% 1
5 DEUTERATED AMMONIA CHEMICAL IONIZATION Author keyword 1 50% 0% 1
6 ESA Q8077 Address 1 50% 0% 1
7 METHYL SULFONE PCBS Author keyword 1 50% 0% 1
8 N ACETYL L SELENOMETHIONINE Author keyword 1 50% 0% 1
9 NEGATIVE ION CHEMICAL IONISATION MASS SPECTROMETRY Author keyword 1 50% 0% 1
10 REACTANT GASES Author keyword 1 50% 0% 1

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class		 LCSH search Wikipedia search
1 4 AMINO PHENAZONE 1 50% 0% 1 Search 4+AMINO+PHENAZONE Search 4+AMINO+PHENAZONE
2 AMMONIA CHEMICAL IONIZATION 1 50% 0% 1 Search AMMONIA+CHEMICAL+IONIZATION Search AMMONIA+CHEMICAL+IONIZATION
3 CHLORINE SPECIFIC DETECTION 1 50% 0% 1 Search CHLORINE+SPECIFIC+DETECTION Search CHLORINE+SPECIFIC+DETECTION
4 DEUTERATED AMMONIA CHEMICAL IONIZATION 1 50% 0% 1 Search DEUTERATED+AMMONIA+CHEMICAL+IONIZATION Search DEUTERATED+AMMONIA+CHEMICAL+IONIZATION
5 METHYL SULFONE PCBS 1 50% 0% 1 Search METHYL+SULFONE+PCBS Search METHYL+SULFONE+PCBS
6 N ACETYL L SELENOMETHIONINE 1 50% 0% 1 Search N+ACETYL+L+SELENOMETHIONINE Search N+ACETYL+L+SELENOMETHIONINE
7 NEGATIVE ION CHEMICAL IONISATION MASS SPECTROMETRY 1 50% 0% 1 Search NEGATIVE+ION+CHEMICAL+IONISATION+MASS+SPECTROMETRY Search NEGATIVE+ION+CHEMICAL+IONISATION+MASS+SPECTROMETRY
8 REACTANT GASES 1 50% 0% 1 Search REACTANT+GASES Search REACTANT+GASES
9 SELECTIVE HYDROGENATIONS 1 50% 0% 1 Search SELECTIVE+HYDROGENATIONS Search SELECTIVE+HYDROGENATIONS
10 CHLORINE 37 0 25% 0% 1 Search CHLORINE+37 Search CHLORINE+37

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 PENTAFLUOROBENZYL ESTERS 2 50% 1% 3
2 ISOBUTANE CHEMICAL IONIZATION 1 100% 0% 2
3 CAPTURE NEGATIVE ION 1 50% 0% 1
4 DETACHMENT RATE CONSTANTS 1 29% 0% 2
5 ADDUCT ION FORMATION 0 33% 0% 1
6 COMPETING OXYGEN TRANSFERS 0 33% 0% 1
7 MONOCHROMATOR MASS SPECTROMETER 0 33% 0% 1
8 PENTAFLUOROBENZYL CHLOROFORMATE DERIVATIZATION 0 33% 0% 1
9 REAGENT GASES 0 33% 0% 1
10 TETRACHLORODIBENZO PARA DIOXINS 0 25% 0% 1

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Electron monochromator mass spectrometer instrument for negative ion analysis of electronegative compounds 1996 30 34 65%
STUDIES IN CHEMICAL IONIZATION MASS-SPECTROMETRY .19. REACTIONS BETWEEN SUBSTRATE MOLECULES AND CHEMICAL IONIZATION REAGENT GASES PRIOR TO IONIZATION 1988 32 34 74%
ELECTRON-CAPTURE MASS-SPECTROMETRY OF ORGANIC ENVIRONMENTAL CONTAMINANTS 1994 36 87 31%
High-pressure electron capture mass spectrometry 1995 9 52 48%
AMMONIA CHEMICAL IONIZATION MASS-SPECTROMETRY 1986 93 91 44%
THE FRAGMENTATION OF NEGATIVE-IONS GENERATED BY ELECTRON-CAPTURE NEGATIVE-ION MASS-SPECTROMETRY - A REVIEW WITH NEW DATA 1988 40 76 49%
NEGATIVE CHEMICAL IONIZATION (NCI) OF ORGANIC-COMPOUNDS 1986 97 133 36%
THE COMPOSITION OF THE CH4 PLASMA 1990 14 70 33%
DEVELOPMENT TRENDS IN INSTRUMENTAL MASS-SPECTROMETRY SUITES AND APPLICATIONS IN ORGANIC-ANALYSIS 1991 0 4 100%
RADICALS IN ANALYTICAL MASS-SPECTROMETRY 1986 35 29 48%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 ANALYT BIOCHEM MASS SPE OMETRY 1 27% 0.6% 3
2 ESA Q8077 1 50% 0.2% 1
3 ISC SCI 0 33% 0.2% 1
4 UNIT OSTEOL ANALYT MASS SPE OMETRY 0 10% 0.6% 3
5 ADV SCI COMPUTAT SICHUAN PROV 0 25% 0.2% 1
6 GENIE PROC PLASMAS TRAITEMENT SUR ES 0 25% 0.2% 1
7 GRP HOMOGENOUS CATALYSIS 0 20% 0.2% 1
8 URA CNRS 1307 0 13% 0.2% 1
9 CHIM MECAN REACIONNELS 0 100% 0.2% 1
10 CHIM ORGAN STRUCT EP103 0 100% 0.2% 1

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000246928 PENTAQUADRUPOLE MASS SPECTROMETRY//ACYLIUM IONS//Z 7 TETRADECENYL ACETATE
2 0.0000186917 BREATHING TEST//COMPLEXES OF TRANSITION METALS//DEGREE OF FRAGMENTATION
3 0.0000134906 SECOND ORDER MOLLER PLESSET PERTURBATION THEORY MP2//ATOMIC OXYGEN RADICAL ANION//EVEN ELECTRON IONS
4 0.0000122268 CHARGE REMOTE FRAGMENTATION//FAST ATOM BOMBARDMENT//INTERNAL CALIBRANT
5 0.0000101276 ARENIUM IONS//TRIFLUOROMETHYL CATION//GASEOUS LEWIS SUPERACIDS
6 0.0000095883 ELECTRON ATTACHMENT//PHYS MOL CRYSTALS//RESONANT ELECTRON CAPTURE MASS SPECTROMETRY
7 0.0000095824 MULTIPLE STAGE EXPERIMENTS//TWISTED ANGLE//DIBENZOD F1 3DIOXEPINE
8 0.0000085358 PULSED DISCHARGE DETECTOR//CHLORINE SELECTIVE DETECTOR//PULSED DISCHARGE EMISSION DETECTION
9 0.0000083327 DIRECT EI//THERMOSPRAY IONIZATION//IST SCI CHIM F BRUNER
10 0.0000078806 ORGANIC MASS SPECTROMETRY//PROTON TRANSPORT CATALYSIS//RRKM CALCULATION