Class information for:
Level 1: KJELDAHL METHOD//KJELDAHL//DUMAS METHOD

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
1679 2             NITRITE//NITRITE DETERMINATION//ANALYTICA CHIMICA ACTA 7100
25055 1                   KJELDAHL METHOD//KJELDAHL//DUMAS METHOD 316

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 KJELDAHL METHOD authKW 448798 4% 38% 12
2 KJELDAHL authKW 317565 3% 29% 11
3 DUMAS METHOD authKW 249336 2% 50% 5
4 JAS authKW 239360 2% 40% 6
5 BARLEY ANALYSIS METHOD FOR authKW 199472 1% 100% 2
6 DUMAS NITROGEN authKW 199472 1% 100% 2
7 PULSE HEATING AND TIME OF FLIGHT MASS SPECTROMETRIC METHOD authKW 199472 1% 100% 2
8 WORKING GRP ACCREDITAT ISO CEN STAND address 199472 1% 100% 2
9 JOURNAL OF THE ASSOCIATION OF PUBLIC ANALYSTS journal 199448 4% 14% 14
10 KJELDAHL NITROGEN authKW 138515 2% 28% 5

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Chemistry, Analytical 3619 46% 0% 145
2 Food Science & Technology 2625 34% 0% 106
3 Soil Science 817 10% 0% 31
4 Agronomy 313 9% 0% 28
5 Chemistry, Applied 139 7% 0% 22
6 Plant Sciences 124 10% 0% 32
7 AGRICULTURAL EXPERIMENT STATION REPORTS 92 0% 0% 1
8 Agriculture, Dairy & Animal Science 78 4% 0% 13
9 Agriculture, Multidisciplinary 56 3% 0% 10
10 Medical Laboratory Technology 45 2% 0% 7

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 WORKING GRP ACCREDITAT ISO CEN STAND 199472 1% 100% 2
2 ELING CONSUMER SERV 112199 1% 38% 3
3 BIOL STANDARD QUAL CONTROL 99736 0% 100% 1
4 DEP BIOL PHYSIOL VEG 99736 0% 100% 1
5 DIMEG MECH ENGN ENERGET MANAGERIAL ENGN 99736 0% 100% 1
6 FA CSCI LETTERS 99736 0% 100% 1
7 FEHERJE BIOTECHNOL IRODA 99736 0% 100% 1
8 FOSS TECATOR 99736 0% 100% 1
9 GOVT CHEMISTS PROGRAMME 99736 0% 100% 1
10 UNIT ORGAN CHEM NAT AGROFOOD PROD 99736 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF THE ASSOCIATION OF PUBLIC ANALYSTS 199448 4% 14% 14
2 JOURNAL OF THE ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS 17066 7% 1% 21
3 MISSISSIPPI AGRICULTURAL & FORESTRY EXPERIMENT STATION TECHNICAL BULLETIN 14246 0% 14% 1
4 COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 7539 7% 0% 23
5 AUSTRALIAN JOURNAL OF DAIRY TECHNOLOGY 5362 2% 1% 7
6 JOURNAL OF AOAC INTERNATIONAL 3826 4% 0% 14
7 CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY 3276 1% 1% 4
8 BIOTECH FORUM EUROPE 3115 0% 3% 1
9 VETERINARY PRACTITIONER 2887 1% 1% 2
10 MONATSSCHRIFT FUR BRAUWISSENSCHAFT 2407 1% 1% 3

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 KJELDAHL METHOD 448798 4% 38% 12 Search KJELDAHL+METHOD Search KJELDAHL+METHOD
2 KJELDAHL 317565 3% 29% 11 Search KJELDAHL Search KJELDAHL
3 DUMAS METHOD 249336 2% 50% 5 Search DUMAS+METHOD Search DUMAS+METHOD
4 JAS 239360 2% 40% 6 Search JAS Search JAS
5 BARLEY ANALYSIS METHOD FOR 199472 1% 100% 2 Search BARLEY+ANALYSIS+METHOD+FOR Search BARLEY+ANALYSIS+METHOD+FOR
6 DUMAS NITROGEN 199472 1% 100% 2 Search DUMAS+NITROGEN Search DUMAS+NITROGEN
7 PULSE HEATING AND TIME OF FLIGHT MASS SPECTROMETRIC METHOD 199472 1% 100% 2 Search PULSE+HEATING+AND+TIME+OF+FLIGHT+MASS+SPECTROMETRIC+METHOD Search PULSE+HEATING+AND+TIME+OF+FLIGHT+MASS+SPECTROMETRIC+METHOD
8 KJELDAHL NITROGEN 138515 2% 28% 5 Search KJELDAHL+NITROGEN Search KJELDAHL+NITROGEN
9 DUMAS 132976 1% 33% 4 Search DUMAS Search DUMAS
10 ALBUMIN CALIBRATORS CAUSE SYSTEMATIC PROTEIN BIAS 99736 0% 100% 1 Search ALBUMIN+CALIBRATORS+CAUSE+SYSTEMATIC+PROTEIN+BIAS Search ALBUMIN+CALIBRATORS+CAUSE+SYSTEMATIC+PROTEIN+BIAS

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 26627 NORTHEAST DAIRY FOOD//INFRARED MILK ANALYSIS//SW MILK MKT AREA
2 28434 DRY COMBUSTION//WALKLEY BLACK METHOD//WALKLEY BLACK
3 18945 AMMONIA DETERMINATION//MEMBRANELESS GAS DIFFUSION//AMMONIUM DETERMINATION
4 12584 MICROWAVE DIGESTION//MICROWAVE ASSISTED DIGESTION//DILUTED NITRIC ACID
5 20667 STAND REFERENCE MAT PROGRAM//2 5 DIMERCAPTO 1 3 4 THIADIAZOLE DMTD SURFACE ENHANCED RAMAN SCATTERING SERS//ADSORPTION AND BINDING
6 38594 PFLANZEN UTZ GARTENBAU//TRUE PROTEIN//REVUE DE L AGRICULTURE
7 24252 SOLID SUPPORT CHARACTERIZATION//BIOREGULATORS//BRADFORD ASSAY
8 4275 ACCREDITATION AND QUALITY ASSURANCE//PROFICIENCY TESTING//MEASUREMENT UNCERTAINTY
9 34898 BIODEGRADABLE DISSOLVED ORGANIC NITROGEN//BIODEGRADABLE DISSOLVED ORGANIC NITROGEN BDON//COLLOIDAL ORGANIC NITROGEN
10 24120 VOM WASSER//AG AGIO3 ELECTRODE METHOD//ANTIMONY ELECTRODE METHOD

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