Class information for:
Level 1: SOLID PHASE MICROEXTRACTION//ENVIRONM BIOANALYT S//SPME

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
18 4 CHEMISTRY, ANALYTICAL//TOXICOLOGY//ENVIRONMENTAL SCIENCES 697102
471 3       MOLECULARLY IMPRINTED POLYMER//MOLECULAR IMPRINTING//SOLID PHASE MICROEXTRACTION 25382
800 2             MOLECULARLY IMPRINTED POLYMER//MOLECULAR IMPRINTING//SOLID PHASE MICROEXTRACTION 12287
1922 1                   SOLID PHASE MICROEXTRACTION//ENVIRONM BIOANALYT S//SPME 2463

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SOLID PHASE MICROEXTRACTION authKW 4526846 38% 38% 941
2 ENVIRONM BIOANALYT S address 352550 2% 67% 41
3 SPME authKW 295942 7% 14% 168
4 IN TUBE SOLID PHASE MICROEXTRACTION authKW 291058 2% 49% 46
5 NEEDLE TRAP DEVICE authKW 260309 1% 88% 23
6 SOLID PHASE MICROEXTRACTION SPME authKW 258221 3% 25% 82
7 IN TUBE SPME authKW 213522 1% 76% 22
8 MOE AQUAT PROD SAFETY KLGHEI ENVIRONM E address 170577 1% 67% 20
9 NEEDLE TRAP authKW 163761 1% 80% 16
10 HEADSPACE SOLID PHASE MICROEXTRACTION authKW 151694 3% 19% 62

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Chemistry, Analytical 91797 81% 0% 2005
2 Biochemical Research Methods 26665 35% 0% 855
3 Environmental Sciences 330 8% 0% 185
4 Food Science & Technology 173 4% 0% 104
5 Spectroscopy 134 3% 0% 66
6 Engineering, Environmental 65 2% 0% 47
7 Chemistry, Multidisciplinary 47 6% 0% 152
8 Medicine, Legal 24 0% 0% 11
9 Chemistry, Applied 12 2% 0% 37
10 Toxicology 2 1% 0% 28

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ENVIRONM BIOANALYT S 352550 2% 67% 41
2 MOE AQUAT PROD SAFETY KLGHEI ENVIRONM E 170577 1% 67% 20
3 CAS NAT MED GANSU PROV 52238 0% 58% 7
4 REG AUTHOR PUBL HLTH SERV 38383 0% 100% 3
5 PHARMACODYNAM MOL PHARMACOL 36869 0% 41% 7
6 PL TECHNOL SOPHISTICATED ANALYT RUM 35960 1% 19% 15
7 AGCY NEW TECHNOL ENERGY ENVIRONM 34386 0% 24% 11
8 MOE AQUAT PROD SAFETY 33749 1% 13% 21
9 BIOL PL ENGN 31981 0% 50% 5
10 ANALYT SCI XIAMEN 25589 0% 100% 2

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF CHROMATOGRAPHY A 128682 21% 2% 524
2 JOURNAL OF SEPARATION SCIENCE 35314 5% 2% 132
3 ANALYTICA CHIMICA ACTA 22620 8% 1% 209
4 CHROMATOGRAPHIA 16430 4% 1% 106
5 ANALYTICAL CHEMISTRY 11475 7% 1% 183
6 ANALYTICAL AND BIOANALYTICAL CHEMISTRY 10115 4% 1% 95
7 TRAC-TRENDS IN ANALYTICAL CHEMISTRY 9444 2% 2% 49
8 TALANTA 8480 4% 1% 108
9 JOURNAL OF MICROCOLUMN SEPARATIONS 6951 1% 3% 19
10 JOURNAL OF CHROMATOGRAPHIC SCIENCE 6369 2% 1% 46

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 SOLID PHASE MICROEXTRACTION 4526846 38% 38% 941 Search SOLID+PHASE+MICROEXTRACTION Search SOLID+PHASE+MICROEXTRACTION
2 SPME 295942 7% 14% 168 Search SPME Search SPME
3 IN TUBE SOLID PHASE MICROEXTRACTION 291058 2% 49% 46 Search IN+TUBE+SOLID+PHASE+MICROEXTRACTION Search IN+TUBE+SOLID+PHASE+MICROEXTRACTION
4 NEEDLE TRAP DEVICE 260309 1% 88% 23 Search NEEDLE+TRAP+DEVICE Search NEEDLE+TRAP+DEVICE
5 SOLID PHASE MICROEXTRACTION SPME 258221 3% 25% 82 Search SOLID+PHASE+MICROEXTRACTION+SPME Search SOLID+PHASE+MICROEXTRACTION+SPME
6 IN TUBE SPME 213522 1% 76% 22 Search IN+TUBE+SPME Search IN+TUBE+SPME
7 NEEDLE TRAP 163761 1% 80% 16 Search NEEDLE+TRAP Search NEEDLE+TRAP
8 HEADSPACE SOLID PHASE MICROEXTRACTION 151694 3% 19% 62 Search HEADSPACE+SOLID+PHASE+MICROEXTRACTION Search HEADSPACE+SOLID+PHASE+MICROEXTRACTION
9 SOL GEL TECHNOLOGY 132095 2% 24% 43 Search SOL+GEL+TECHNOLOGY Search SOL+GEL+TECHNOLOGY
10 GAS CHROMATOGRAPHY 127388 11% 4% 275 Search GAS+CHROMATOGRAPHY Search GAS+CHROMATOGRAPHY

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 22146 STIR BAR SORPTIVE EXTRACTION//ROTATING DISK SORPTIVE EXTRACTION//FLOATING SAMPLING TECHNOLOGY
2 13177 MAGNETIC SOLID PHASE EXTRACTION//MICRO SOLID PHASE EXTRACTION//DISPERSIVE MICRO SOLID PHASE EXTRACTION
3 2037 DISPERSIVE LIQUID LIQUID MICROEXTRACTION//LIQUID PHASE MICROEXTRACTION//SINGLE DROP MICROEXTRACTION
4 31651 PHOTOCHEMICAL SAMPLE TREATMENT//STORAGE OF SOIL SAMPLES//2000 60 EC WATER FRAMEWORK DIRECTIVE
5 29657 MICROEXTRACTION IN PACKED SYRINGE//PRULIFLOXACIN//MICROEXTRACTION BY PACKED SORBENT
6 24693 LAVANDULA LUISIERI//LAVANDULA ANGUSTIFOLIA//LAVANDIN
7 26647 RESIDUAL SOLVENTS//P CYCLOHEXYLPHENOL//P PHENYLPHENOL
8 11166 CHLOROPHENOLS//PHENOLS//CHLOROPHENOLS CPS
9 26206 ELECTROMEMBRANE EXTRACTION//ELECTROMEMBRANE EXTRACTION EME//ELECTROMEMBRANE
10 17023 PASSIVE SAMPLING//SEMIPERMEABLE MEMBRANE DEVICES//POCIS

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