Class information for:
Level 3: CHEMISTRY, ANALYTICAL//PRECONCENTRATION//PVC MEMBRANE

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
347 3       CHEMISTRY, ANALYTICAL//PRECONCENTRATION//PVC MEMBRANE 36737
308 2             PRECONCENTRATION//FLAME ATOMIC ABSORPTION SPECTROMETRY//CHEMISTRY, ANALYTICAL 18780
1306 2             PVC MEMBRANE//ION SELECTIVE ELECTRODE//POTENTIOMETRY 8874
1679 2             NITRITE//NITRITE DETERMINATION//ANALYTICA CHIMICA ACTA 7100
3766 2             PURIFICATION OF ALKALI METAL SALTS//CHELATING SORBENT//OCTOLIG R 1098
3931 2             LOCH LOMOND//VOM WASSER//INTEGRATED SAFEGUARDS 885

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 CHEMISTRY, ANALYTICAL WoSSC 685730 58% 4% 21347
2 PRECONCENTRATION authKW 373712 3% 42% 1041
3 PVC MEMBRANE authKW 304944 1% 84% 423
4 POTENTIOMETRY authKW 300935 3% 37% 945
5 ION SELECTIVE ELECTRODE authKW 294596 2% 53% 646
6 TALANTA journal 290979 7% 14% 2433
7 ANALYTICA CHIMICA ACTA journal 283719 8% 12% 2861
8 FLAME ATOMIC ABSORPTION SPECTROMETRY authKW 232151 1% 52% 519
9 SPECTROPHOTOMETRY authKW 215545 3% 21% 1193
10 ION SELECTIVE ELECTRODES authKW 161638 1% 49% 385

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Chemistry, Analytical 685730 58% 4% 21347
2 Electrochemistry 37267 9% 2% 3358
3 Chemistry, Multidisciplinary 14832 16% 1% 5720
4 Instruments & Instrumentation 9281 6% 1% 2139
5 Spectroscopy 6127 4% 1% 1529
6 Environmental Sciences 2701 6% 0% 2249
7 Engineering, Environmental 1688 2% 0% 851
8 Biochemical Research Methods 1236 3% 0% 1074
9 Water Resources 917 2% 0% 744
10 Food Science & Technology 542 3% 0% 961

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 EXCELLENCE ELE OCHEM 64979 1% 35% 219
2 CHEM 46523 25% 1% 9129
3 QUCHAN BRANCH 38555 0% 43% 105
4 ANALYT CHEM 36199 3% 4% 1243
5 PROC ANALYT CHEM SENSOR TECHNOL PROSENS 33809 0% 90% 44
6 ENERGIA NUCL AGR 19126 0% 15% 154
7 NANO BIOTECHNOL 17945 0% 38% 56
8 LQA 13728 0% 54% 30
9 PROC ANALYT CHEM SENSOR TECHNOL 12839 0% 100% 15
10 CHEM SENSORS BIOSENSORS 11874 0% 73% 19

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 TALANTA 290979 7% 14% 2433
2 ANALYTICA CHIMICA ACTA 283719 8% 12% 2861
3 ANALYST 119300 4% 10% 1451
4 BUNSEKI KAGAKU 116612 2% 15% 899
5 JOURNAL OF ANALYTICAL CHEMISTRY 101508 2% 16% 744
6 ANALYTICAL LETTERS 80854 2% 12% 806
7 MICROCHEMICAL JOURNAL 73412 2% 14% 629
8 ANALYTICAL SCIENCES 70489 2% 11% 786
9 CHEMIA ANALITYCZNA 62300 1% 17% 435
10 MIKROCHIMICA ACTA 58821 1% 15% 451

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PRECONCENTRATION 373712 3% 42% 1041 Search PRECONCENTRATION Search PRECONCENTRATION
2 PVC MEMBRANE 304944 1% 84% 423 Search PVC+MEMBRANE Search PVC+MEMBRANE
3 POTENTIOMETRY 300935 3% 37% 945 Search POTENTIOMETRY Search POTENTIOMETRY
4 ION SELECTIVE ELECTRODE 294596 2% 53% 646 Search ION+SELECTIVE+ELECTRODE Search ION+SELECTIVE+ELECTRODE
5 FLAME ATOMIC ABSORPTION SPECTROMETRY 232151 1% 52% 519 Search FLAME+ATOMIC+ABSORPTION+SPECTROMETRY Search FLAME+ATOMIC+ABSORPTION+SPECTROMETRY
6 SPECTROPHOTOMETRY 215545 3% 21% 1193 Search SPECTROPHOTOMETRY Search SPECTROPHOTOMETRY
7 ION SELECTIVE ELECTRODES 161638 1% 49% 385 Search ION+SELECTIVE+ELECTRODES Search ION+SELECTIVE+ELECTRODES
8 ISFET 155667 1% 71% 256 Search ISFET Search ISFET
9 FLOW INJECTION 135524 2% 26% 602 Search FLOW+INJECTION Search FLOW+INJECTION
10 POTENTIOMETRIC SENSOR 101847 1% 51% 236 Search POTENTIOMETRIC+SENSOR Search POTENTIOMETRIC+SENSOR

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 3


rank cluster_id2 link
1 420 JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY//SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY//CHEMISTRY, ANALYTICAL
2 712 LINEAR ALKYLBENZENE SULFONATES//LAS//LINEAR ALKYLBENZENE SULFONATE
3 627 ACCREDITATION AND QUALITY ASSURANCE//PRESSURE SENSITIVE PAINT//CHEMISTRY, ANALYTICAL
4 408 SOLVENT EXTRACTION AND ION EXCHANGE//SOLVENT EXTRACTION//LIQUID MEMBRANE
5 157 BIOSENSOR//BIOSENSORS & BIOELECTRONICS//CHEMISTRY, ANALYTICAL
6 471 MOLECULARLY IMPRINTED POLYMER//MOLECULAR IMPRINTING//SOLID PHASE MICROEXTRACTION
7 619 HYDROGEN SULFIDE//CYANIDE//CASSAVA
8 488 CARBON DOTS//CHEMOSENSOR//AGGREGATION INDUCED EMISSION
9 165 ADSORPTION//BIOSORPTION//ISOTHERM
10 87 CHEMISTRY, ANALYTICAL//JOURNAL OF CHROMATOGRAPHY A//JOURNAL OF CHROMATOGRAPHY

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