Class information for:
Level 1: GASEOUS STANDARD MIXTURES//STANDARD GAS MIXTURES//IMMOBILIZED COMPOUNDS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
21634 411 23.3 32%


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
108 3       AIR POLLUTION//TOXICOLOGY//PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH 71534
1579 2             ISOPRENE//BIOGENIC EMISSIONS//VOLATILE ORGANIC COMPOUNDS 7259
21634 1                   GASEOUS STANDARD MIXTURES//STANDARD GAS MIXTURES//IMMOBILIZED COMPOUNDS 411

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 GASEOUS STANDARD MIXTURES authKW 675402 2% 91% 10
2 STANDARD GAS MIXTURES authKW 334322 1% 75% 6
3 IMMOBILIZED COMPOUNDS authKW 297178 1% 100% 4
4 PERMEATION TUBE authKW 242688 2% 47% 7
5 GAS STANDARDS authKW 232166 1% 63% 5
6 FID CALIBRATION authKW 222883 1% 100% 3
7 ORGAN STAND SECT 1 address 198116 1% 67% 4
8 DYNAMIC VOLUMETRIC METHOD authKW 167161 1% 75% 3
9 MATRIX FREE REFERENCE MATERIALS authKW 148589 0% 100% 2
10 STANDARD GASEOUS MIXTURES authKW 148589 0% 100% 2

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 6949 55% 0% 227
2 Environmental Sciences 619 20% 0% 82
3 Instruments & Instrumentation 462 11% 0% 46
4 Engineering, Environmental 343 8% 0% 32
5 Biochemical Research Methods 295 10% 0% 40
6 Meteorology & Atmospheric Sciences 139 6% 0% 24
7 Engineering, Chemical 41 6% 0% 23
8 Engineering, Civil 41 3% 0% 14
9 Engineering, General 26 2% 0% 10
10 Materials Science, Paper & Wood 11 1% 0% 3

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 ORGAN STAND SECT 1 198116 1% 67% 4
2 MAT PLICAT BRANCH 133728 1% 60% 3
3 ORGAN STAND SECT 99058 0% 67% 2
4 CHEM VIA L BORSARI 46 74294 0% 100% 1
5 DEUST CHIM ANALYT 74294 0% 100% 1
6 DSR THERMAL NUCL DEV 74294 0% 100% 1
7 DVGW STN 74294 0% 100% 1
8 GAS HUMID STAND GRPAIST TSUKUBA CENT 3 74294 0% 100% 1
9 GAS STAND SECT 74294 0% 100% 1
10 GOLD MIDT HOME CARE 74294 0% 100% 1

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 STAUB REINHALTUNG DER LUFT 8857 2% 1% 10
2 INTERNATIONAL LABORATORY 5303 0% 4% 2
3 CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY 3917 1% 1% 5
4 FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY 3897 4% 0% 17
5 ANALYTICAL LETTERS PART A-CHEMICAL ANALYSIS 3765 1% 1% 5
6 METROLOGIA 3233 3% 0% 11
7 JOURNAL OF THE ASSOCIATION OF PUBLIC ANALYSTS 3060 0% 2% 2
8 BUNSEKI KAGAKU 2854 4% 0% 15
9 ACCREDITATION AND QUALITY ASSURANCE 2839 2% 1% 7
10 JOURNAL OF THE AIR POLLUTION CONTROL ASSOCIATION 2595 1% 1% 5

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 GASEOUS STANDARD MIXTURES 675402 2% 91% 10 Search GASEOUS+STANDARD+MIXTURES Search GASEOUS+STANDARD+MIXTURES
2 STANDARD GAS MIXTURES 334322 1% 75% 6 Search STANDARD+GAS+MIXTURES Search STANDARD+GAS+MIXTURES
3 IMMOBILIZED COMPOUNDS 297178 1% 100% 4 Search IMMOBILIZED+COMPOUNDS Search IMMOBILIZED+COMPOUNDS
4 PERMEATION TUBE 242688 2% 47% 7 Search PERMEATION+TUBE Search PERMEATION+TUBE
5 GAS STANDARDS 232166 1% 63% 5 Search GAS+STANDARDS Search GAS+STANDARDS
6 FID CALIBRATION 222883 1% 100% 3 Search FID+CALIBRATION Search FID+CALIBRATION
7 DYNAMIC VOLUMETRIC METHOD 167161 1% 75% 3 Search DYNAMIC+VOLUMETRIC+METHOD Search DYNAMIC+VOLUMETRIC+METHOD
8 MATRIX FREE REFERENCE MATERIALS 148589 0% 100% 2 Search MATRIX+FREE+REFERENCE+MATERIALS Search MATRIX+FREE+REFERENCE+MATERIALS
9 STANDARD GASEOUS MIXTURES 148589 0% 100% 2 Search STANDARD+GASEOUS+MIXTURES Search STANDARD+GASEOUS+MIXTURES
10 STANDARD GASEOUS MIXTURES GENERATION 148589 0% 100% 2 Search STANDARD+GASEOUS+MIXTURES+GENERATION Search STANDARD+GASEOUS+MIXTURES+GENERATION

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 NAGANOWSKA-NOWAK, A , KONIECZKA, P , PRZYJAZNY, A , NAMIESNIK, J , (2005) DEVELOPMENT OF TECHNIQUES OF GENERATION OF GASEOUS STANDARD MIXTURES.CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY. VOL. 35. ISSUE 1. P. 31-55 41 55% 20
2 FIJALO, C , DYMERSKI, T , GEBICKI, J , NAMIESNIK, J , (2016) DEVICES FOR THE PRODUCTION OF REFERENCE GAS MIXTURES.CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY. VOL. 46. ISSUE 5. P. 361 -373 27 46% 0
3 SLOMINSKA, M , KONIECZKA, P , NAMIESNIK, J , (2014) NEW DEVELOPMENTS IN PREPARATION AND USE OF STANDARD GAS MIXTURES.TRAC-TRENDS IN ANALYTICAL CHEMISTRY. VOL. 62. ISSUE . P. 135 -143 21 58% 4
4 NAGANOWSKA-NOWAK, A , KONIECZKA, P , BIERNAT, JF , SZCZYGELSKA-TAO, J , PRZYJAZNY, A , NAMIESNIK, J , (2007) INVESTIGATION OF MATRIX-FREE GENERATION OF METHYL CHLORIDE AS A REFERENCE MATERIAL.TRAC-TRENDS IN ANALYTICAL CHEMISTRY. VOL. 26. ISSUE 7. P. 744-751 16 89% 1
5 KONIECZKA, P , (2000) INFLUENCE OF PROCESS PARAMETERS ON THE COMPOSITION OF GASEOUS STANDARD MIXTURES OF N-PROPANETHIOL OBTAINED BY THERMAL DECOMPOSITION OF SURFACE COMPOUNDS.FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY. VOL. 367. ISSUE 2. P. 132-140 16 89% 4
6 SWITAJ, A , PRZYK, E , SZCZYGELSKA-TAO, J , WOJCIK, J , BIERNAT, JF , NAMIESNIK, J , ZYGMUNT, B , (2003) APPLICABILITY OF GLASS FIBER AS A SUPPORT MATERIAL FOR GENERATION OF GASEOUS STANDARD MIXTURES USING THERMAL DECOMPOSITION OF THE SURFACE COMPOUND. CALIBRATION OF ANALYTICAL EQUIPMENT.JOURNAL OF SEPARATION SCIENCE. VOL. 26. ISSUE 11. P. 1057-1062 16 67% 5
7 RHODERICK, GC , YEN, JH , (2006) DEVELOPMENT OF A NIST STANDARD REFERENCE MATERIAL CONTAINING THIRTY VOLATILE ORGANIC COMPOUNDS AT 5 NMOL/MOL IN NITROGEN.ANALYTICAL CHEMISTRY. VOL. 78. ISSUE 9. P. 3125-3132 11 85% 5
8 PROKOPOWICZ, M , KONIECZKA, P , NAMIESNIK, J , (1999) A NEW APPROACH TO GENERATION OF STANDARD GAS MIXTURES USED IN THE CALIBRATION OF GAS ANALYSERS.ENVIRONMENTAL TECHNOLOGY. VOL. 20. ISSUE 10. P. 1065-1073 14 82% 3
9 SWITAJ-ZAWADKA, A , KONIECZKA, P , SZCZYGELSKA-TAO, J , BIERNAT, JF , WOJCIK, J , PRZYJAZNY, A , NAMIESNIK, J , (2004) POSSIBILITIES OF PRODUCTION OF NEW REFERENCE MATERIAL - PREPARATION OF GASEOUS STANDARD MIXTURES USING THERMAL DECOMPOSITION OF IMMOBILIXED COMPOUNDS - THE EFFECT OF SELECTED PARAMETERS ON THE AMOUNT OF RELEASED ANALYTE.CHROMATOGRAPHIA. VOL. 60. ISSUE 7-8. P. 433-439 13 72% 1
10 SUSAYA, J , KIM, KH , CHO, J , PARKER, D , (2012) THE CONTROLLING EFFECT OF TEMPERATURE IN THE APPLICATION OF PERMEATION TUBE DEVICES IN STANDARD GAS GENERATION.JOURNAL OF CHROMATOGRAPHY A. VOL. 1225. ISSUE . P. 8-16 9 82% 5

Classes with closest relation at Level 1


Rank Class id link
1 13084 AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL//PASSIVE SAMPLER//DIFFUSION TUBES
2 27697 SONIC NOZZLE//CRITICAL NOZZLE//CRITICAL FLOW VENTURI NOZZLE
3 37651 ENVIRONM ODOUR//EPA SW846 METHOD 8270//GC MSD DETECTION LIMITS
4 2568 OZONE FORMATION POTENTIAL//NON METHANE HYDROCARBONS//VOLATILE ORGANIC COMPOUNDS
5 31553 IMW PL MARINE//STANDARDS MEASUREMENTS AND TESTING PROGRAMME//STAND MEASUREMENTS TESTING PROGRAMME
6 31976 ADM POLYMER DEV//INTERNATIONAL LABORATORY//PLASTE UND KAUTSCHUK
7 16581 CHROMATOMEMBRANE CELL//VOLATILE ANALYTES//THIN LAYER HEADSPACE TLHS
8 19471 ATMOSPHERIC PRESSURE IONIZATION MASS SPECTROMETER//CHLORINE SELECTIVE DETECTOR//PULSED DISCHARGE EMISSION DETECTION
9 26427 AMMONIA AS CARRIER GAS//RELATIVE RETENTION VALUES//ALKANE STATIONARY PHASES
10 22687 SULFUR CHEMILUMINESCENCE DETECTOR//MULTIPLE FLAME//SULFUR CHEMILUMINESCENCE DETECTION

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