Class information for:
Level 1: PRECONCENTRATION//FLAME ATOMIC ABSORPTION SPECTROMETRY//SOLID PHASE EXTRACTION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
562 3302 31.8 73%


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
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
95 3       CHEMISTRY, ANALYTICAL//JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY//SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY 76493
604 2             MOLECULARLY IMPRINTED POLYMER//MOLECULAR IMPRINTING//PRECONCENTRATION 14074
562 1                   PRECONCENTRATION//FLAME ATOMIC ABSORPTION SPECTROMETRY//SOLID PHASE EXTRACTION 3302

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 PRECONCENTRATION authKW 2192168 23% 31% 755
2 FLAME ATOMIC ABSORPTION SPECTROMETRY authKW 1053641 10% 34% 331
3 SOLID PHASE EXTRACTION authKW 606187 19% 10% 627
4 FAAS authKW 383646 4% 31% 135
5 ON LINE PRECONCENTRATION authKW 310854 3% 35% 96
6 AMBERLITE XAD 2 authKW 250649 1% 66% 41
7 ATOMIC ABSORPTION SPECTROMETRY authKW 244372 6% 13% 210
8 AMBERLITE XAD 4 authKW 195279 1% 54% 39
9 CHELATING RESIN authKW 182038 3% 22% 89
10 KNOTTED REACTOR authKW 139827 1% 69% 22

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 58079 56% 0% 1859
2 Spectroscopy 5000 11% 0% 369
3 Environmental Sciences 1890 13% 0% 433
4 Chemistry, Multidisciplinary 1661 17% 0% 560
5 Engineering, Environmental 1162 5% 0% 174
6 Engineering, Civil 620 4% 0% 146
7 Food Science & Technology 590 6% 0% 197
8 Engineering, Chemical 464 6% 0% 210
9 Chemistry, Applied 171 3% 0% 97
10 Water Resources 152 2% 0% 82

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 LQA 68461 1% 37% 20
2 MED MKT PROMOT PROGRAMME 65745 0% 89% 8
3 VARAMIN PISHVA BRANCH 56721 1% 14% 43
4 GUMUSHANE VOCAT 48813 0% 41% 13
5 ART SCI 37834 4% 4% 116
6 FEN 31026 0% 22% 15
7 NACL CIENCIA TECNOL INCT BIOANALIT 25668 0% 28% 10
8 KIRSEHIR EDUC 25597 0% 46% 6
9 CHEM 24830 55% 0% 1820
10 QUIM EXATAS 24741 0% 18% 15

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 TALANTA 53408 9% 2% 311
2 MICROCHIMICA ACTA 50835 4% 4% 129
3 ATOMIC SPECTROSCOPY 41379 2% 7% 67
4 INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 27107 3% 3% 98
5 ANALYTICA CHIMICA ACTA 20183 7% 1% 231
6 JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 18871 3% 2% 111
7 ANALYTICAL SCIENCES 15003 3% 2% 109
8 ANALYTICAL LETTERS 13467 3% 1% 99
9 MICROCHEMICAL JOURNAL 12156 2% 2% 76
10 JOURNAL OF HAZARDOUS MATERIALS 11509 4% 1% 141

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 PRECONCENTRATION 2192168 23% 31% 755 Search PRECONCENTRATION Search PRECONCENTRATION
2 FLAME ATOMIC ABSORPTION SPECTROMETRY 1053641 10% 34% 331 Search FLAME+ATOMIC+ABSORPTION+SPECTROMETRY Search FLAME+ATOMIC+ABSORPTION+SPECTROMETRY
3 SOLID PHASE EXTRACTION 606187 19% 10% 627 Search SOLID+PHASE+EXTRACTION Search SOLID+PHASE+EXTRACTION
4 FAAS 383646 4% 31% 135 Search FAAS Search FAAS
5 ON LINE PRECONCENTRATION 310854 3% 35% 96 Search ON+LINE+PRECONCENTRATION Search ON+LINE+PRECONCENTRATION
6 AMBERLITE XAD 2 250649 1% 66% 41 Search AMBERLITE+XAD+2 Search AMBERLITE+XAD+2
7 ATOMIC ABSORPTION SPECTROMETRY 244372 6% 13% 210 Search ATOMIC+ABSORPTION+SPECTROMETRY Search ATOMIC+ABSORPTION+SPECTROMETRY
8 AMBERLITE XAD 4 195279 1% 54% 39 Search AMBERLITE+XAD+4 Search AMBERLITE+XAD+4
9 CHELATING RESIN 182038 3% 22% 89 Search CHELATING+RESIN Search CHELATING+RESIN
10 KNOTTED REACTOR 139827 1% 69% 22 Search KNOTTED+REACTOR Search KNOTTED+REACTOR

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 AHMAD, A , SIDDIQUE, JA , LASKAR, MA , KUMAR, R , MOHD-SETAPAR, SH , KHATOON, A , SHIEKH, RA , (2015) NEW GENERATION AMBERLITE XAD RESIN FOR THE REMOVAL OF METAL IONS: A REVIEW.JOURNAL OF ENVIRONMENTAL SCIENCES. VOL. 31. ISSUE . P. 104 -123 103 73% 11
2 CAMEL, V , (2003) SOLID PHASE EXTRACTION OF TRACE ELEMENTS.SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY. VOL. 58. ISSUE 7. P. 1177 -1233 113 48% 638
3 KORN, MDA , DE ANDRADE, JB , DE JESUS, DS , LEMOS, VA , BANDEIRA, MLSF , DOS SANTOS, WNL , BEZERRA, MA , AMORIM, FAC , SOUZA, AS , FERREIRA, SLC , (2006) SEPARATION AND PRECONCENTRATION PROCEDURES FOR THE DETERMINATION OF LEAD USING SPECTROMETRIC TECHNIQUES: A REVIEW.TALANTA. VOL. 69. ISSUE 1. P. 16 -24 90 70% 158
4 GOUDA, AA , (2016) A NEW COPRECIPITATION METHOD WITHOUT CARRIER ELEMENT FOR SEPARATION AND PRECONCENTRATION OF SOME METAL IONS AT TRACE LEVELS IN WATER AND FOOD SAMPLES.TALANTA. VOL. 146. ISSUE . P. 435 -441 40 82% 8
5 TURKER, AR , (2007) NEW SORBENTS FOR SOLID-PHASE EXTRACTION FOR METAL ENRICHMENT.CLEAN-SOIL AIR WATER. VOL. 35. ISSUE 6. P. 548 -557 86 57% 115
6 ARKHIPOVA, AA , STATKUS, MA , TSIZIN, GI , ZOLOTOV, YA , (2015) PRECONCENTRATION OF ELEMENTS AS HYDROPHOBIC COMPLEXES WITH LOW-POLAR ADSORBENTS.JOURNAL OF ANALYTICAL CHEMISTRY. VOL. 70. ISSUE 12. P. 1413 -1431 77 58% 1
7 KARADAS, C , KARA, D , (2013) ON-LINE PRECONCENTRATION AND DETERMINATION OF TRACE ELEMENTS IN WATERS AND REFERENCE CEREAL MATERIALS BY FLOW INJECTION - FAAS USING NEWLY SYNTHESIZED 8-HYDROXY-2-QUINOLINE CARBOXALDEHYDE FUNCTIONALIZED AMBERLITE XAD-4.JOURNAL OF FOOD COMPOSITION AND ANALYSIS. VOL. 32. ISSUE 1. P. 90-98 51 84% 16
8 PYRZYNSKA, K , KILIAN, K , (2007) ON-LINE SORPTION-BASED SYSTEMS FOR DETERMINATION OF CADMIUM WITH ATOMIC SPECTROMETRY DETECTORS.WATER RESEARCH. VOL. 41. ISSUE 13. P. 2839 -2851 66 64% 31
9 KOLEVA, BD , IVANOVA, EH , (2009) FLOW INJECTION ANALYSIS COUPLED WITH ATOMIC SPECTROMETRY.BULGARIAN CHEMICAL COMMUNICATIONS. VOL. 41. ISSUE 1. P. 3-11 73 57% 3
10 SHARMA, RK , PANT, P , (2009) SOLID PHASE EXTRACTION AND DETERMINATION OF METAL IONS IN AQUEOUS SAMPLES USING QUERCETIN MODIFIED AMBERLITE XAD-16 CHELATING POLYMER AS METAL EXTRACTANT.INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY. VOL. 89. ISSUE 7. P. 503-514 48 80% 27

Classes with closest relation at Level 1


Rank Class id link
1 11537 CLOUD POINT EXTRACTION//TRITON X 114//CLOUD POINT PRECONCENTRATION
2 17224 ION IMPRINTED POLYMER//ION IMPRINTING//SURFACE IMPRINTING TECHNIQUE
3 21934 POLYURETHANE FOAM//POLYURETHANE FOAM SORBENT//URETHANE POLYMERS
4 6999 CHROMIUM SPECIATION//CHROMIUM DETERMINATION//CHROMIUMVI
5 27573 CHILDRENS SERUM//PINUS NIGRA L//PRECONCENTRATION ON ACTIVATED CARBON
6 5324 PLATINUM GROUP ELEMENTS//FIRE ASSAY//AUTOMOBILE CATALYST
7 12026 RARE EARTH ELEMENTS//CHELATING RESIN PACKED MINICOLUMN//RARE EARTHS ELEMENTS
8 27896 CHEM ENVIRONM SCI ENGN//LUMINESCENCE SPECTRAL ANALYSIS//CITRIC ACID POLYETHYLENEOXIDE ETHER AMBER DIEHYLENE GLYCOL DINITRATE DIGLYCOLLIC AMIDE
9 15674 RECURSOS MINERAIS//DRM UFMT//QUICSI TEAM
10 18900 SEQUENTIAL INJECTION CHROMATOGRAPHY//SOLID PHASE SPECTROPHOTOMETRY//LAB ON VALVE

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