Class information for:
Level 2: ACCREDITATION AND QUALITY ASSURANCE//PROFICIENCY TESTING//MEASUREMENT UNCERTAINTY

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2202 4864 20.1 37%


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
2202 2             ACCREDITATION AND QUALITY ASSURANCE//PROFICIENCY TESTING//MEASUREMENT UNCERTAINTY 4864
6053 1                   ACCREDITATION AND QUALITY ASSURANCE//PROFICIENCY TESTING//MEASUREMENT UNCERTAINTY 1538
16523 1                   ROWAN LODGE//QUANTITATION LIMIT//BIVARIATE LEAST SQUARES 649
18346 1                   ACCURACY PROFILE//TOTAL ERROR//ROBUSTNESS TESTING 555
21281 1                   TOTAL YOUDEN BLANK//BARIUM SULFATE GRAVIMETRY//BIAS FREE RESULTS 426
22136 1                   THEORY OF SAMPLING//THEORY OF SAMPLING TOS//SOIL SAMPLING 392
27010 1                   VIDEO EXPOSURE MONITORING//PIMEX//ANALYSIS OF CHLORINATED HYDROCARBONS 240
27292 1                   DETECTION OF NONLINEARITY//STRAIGHT LINE CALIBRATION//FUZZY HIERARCHICAL CLUSTERING 233
31368 1                   GEBER//SENSORS ANALYSERS//KATEDRA CHEM DIDAKTIKY CHEM 154
31553 1                   IMW PL MARINE//STANDARDS MEASUREMENTS AND TESTING PROGRAMME//STAND MEASUREMENTS TESTING PROGRAMME 151
32065 1                   ACCREDITATION AND QUALITY ASSURANCE//FOOD FOOD PROC QUAL//FRENCH SANITARY SECURITY AND HEALTH PRODUCTS AGENCY 144
32335 1                   ALLIGATOR PEAR FRUIT//ANALYSIS GENERAL//BUTTER FRUIT 140
32535 1                   2 POINTS APPROXIMATION//3 3 HYDROXY 5EN STEROIDS//BACTERIAL PRIMARY COLONIZATION 137
34861 1                   DESIGN QUALIFICATION//INSTALLATION QUALIFICATION//OPERATIONAL QUALIFICATION 105

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 ACCREDITATION AND QUALITY ASSURANCE journal 1653929 12% 45% 580
2 PROFICIENCY TESTING authKW 333887 4% 28% 190
3 MEASUREMENT UNCERTAINTY authKW 235856 4% 19% 203
4 REFERENCE MATERIALS authKW 102773 3% 12% 134
5 ACCURACY PROFILE authKW 99016 1% 48% 33
6 METROLOGY IN CHEMISTRY authKW 82980 0% 58% 23
7 CHEMISTRY, ANALYTICAL WoSSC 81204 55% 1% 2670
8 PROFICIENCY TESTING SCHEME authKW 68332 0% 78% 14
9 FITNESS FOR PURPOSE authKW 65238 1% 40% 26
10 HOMOGENEITY STUDY authKW 60244 0% 80% 12

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 81204 55% 1% 2670
2 Instruments & Instrumentation 16460 19% 0% 911
3 Education, Scientific Disciplines 1494 3% 0% 141
4 Statistics & Probability 1131 4% 0% 206
5 Biochemical Research Methods 1088 6% 0% 287
6 Chemistry, Multidisciplinary 957 12% 0% 581
7 Food Science & Technology 852 6% 0% 288
8 Automation & Control Systems 740 3% 0% 143
9 Mathematics, Interdisciplinary Applications 734 3% 0% 158
10 Spectroscopy 719 4% 0% 194

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 REFERENCE MAT MEASUREMENTS 48703 2% 9% 86
2 FOOD STAND AGCY 48272 0% 77% 10
3 DG 12 38438 0% 88% 7
4 EUROPEAN UNION REFERENCE CHEM ELEMENTS FOOD A 37656 0% 100% 6
5 LERMDV 37656 0% 100% 6
6 ENVIRONM MEASUREMENT TESTING 26148 0% 83% 5
7 GEN COORDINAT ACCREDITAT CGCRE 25104 0% 100% 4
8 STEINER CO 25104 0% 100% 4
9 CHUCIRM 19609 0% 63% 5
10 ANALYT CHEM CHU 18828 0% 100% 3

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 ACCREDITATION AND QUALITY ASSURANCE 1653929 12% 45% 580
2 TRAC-TRENDS IN ANALYTICAL CHEMISTRY 51981 3% 5% 162
3 CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS 24635 2% 4% 112
4 FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY 22249 3% 3% 140
5 SPECTROSCOPY 11193 1% 4% 41
6 JOURNAL OF AOAC INTERNATIONAL 10974 2% 2% 94
7 ANALYST 7978 3% 1% 138
8 FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE 7719 1% 2% 64
9 ANALYTICA CHIMICA ACTA 6325 3% 1% 159
10 JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS 6281 2% 1% 106

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 PROFICIENCY TESTING 333887 4% 28% 190 Search PROFICIENCY+TESTING Search PROFICIENCY+TESTING
2 MEASUREMENT UNCERTAINTY 235856 4% 19% 203 Search MEASUREMENT+UNCERTAINTY Search MEASUREMENT+UNCERTAINTY
3 REFERENCE MATERIALS 102773 3% 12% 134 Search REFERENCE+MATERIALS Search REFERENCE+MATERIALS
4 ACCURACY PROFILE 99016 1% 48% 33 Search ACCURACY+PROFILE Search ACCURACY+PROFILE
5 METROLOGY IN CHEMISTRY 82980 0% 58% 23 Search METROLOGY+IN+CHEMISTRY Search METROLOGY+IN+CHEMISTRY
6 PROFICIENCY TESTING SCHEME 68332 0% 78% 14 Search PROFICIENCY+TESTING+SCHEME Search PROFICIENCY+TESTING+SCHEME
7 FITNESS FOR PURPOSE 65238 1% 40% 26 Search FITNESS+FOR+PURPOSE Search FITNESS+FOR+PURPOSE
8 HOMOGENEITY STUDY 60244 0% 80% 12 Search HOMOGENEITY+STUDY Search HOMOGENEITY+STUDY
9 TOTAL ERROR 56225 0% 41% 22 Search TOTAL+ERROR Search TOTAL+ERROR
10 CERTIFIED REFERENCE MATERIAL 55905 1% 13% 68 Search CERTIFIED+REFERENCE+MATERIAL Search CERTIFIED+REFERENCE+MATERIAL

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 DE ALBANO, FM , TEN CATEN, CS , (2014) PROFICIENCY TESTS FOR LABORATORIES: A SYSTEMATIC REVIEW.ACCREDITATION AND QUALITY ASSURANCE. VOL. 19. ISSUE 4. P. 245 -257 64 57% 1
2 DESIMONI, E , BRUNETTI, B , (2005) UNCERTAINTY OF MEASUREMENT: APPROACHES AND OPEN PROBLEMS.ANNALI DI CHIMICA. VOL. 95. ISSUE 5. P. 265-274 42 95% 4
3 THOMPSON, M , (2012) PRECISION IN CHEMICAL ANALYSIS: A CRITICAL SURVEY OF USES AND ABUSES.ANALYTICAL METHODS. VOL. 4. ISSUE 6. P. 1598-1611 34 92% 8
4 YIP, YC , TONG, WF , (2009) ASSESSING LABORATORY PERFORMANCE IN INTERCOMPARISONS FOR INORGANIC ANALYSIS.TRAC-TRENDS IN ANALYTICAL CHEMISTRY. VOL. 28. ISSUE 11. P. 1276 -1294 39 76% 5
5 KOMSTA, L , (2012) CHEMOMETRIC AND STATISTICAL EVALUATION OF CALIBRATION CURVES IN PHARMACEUTICAL ANALYSIS-A SHORT REVIEW ON TRENDS AND RECOMMENDATIONS.JOURNAL OF AOAC INTERNATIONAL. VOL. 95. ISSUE 3. P. 669-672 28 93% 7
6 SAYAGO, A , BOCCIO, M , ASUERO, AG , (2004) FITTING STRAIGHT LINES WITH REPLICATED OBSERVATIONS BY LINEAR REGRESSION: THE LEAST SQUARES POSTULATES.CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY. VOL. 34. ISSUE 1. P. 39-50 56 57% 22
7 EVARD, H , KRUVE, A , LEITO, I , (2016) TUTORIAL ON ESTIMATING THE LIMIT OF DETECTION USING LC-MS ANALYSIS, PART I: THEORETICAL REVIEW.ANALYTICA CHIMICA ACTA. VOL. 942. ISSUE . P. 23 -39 30 79% 0
8 TELLINGHUISEN, J , (2010) LEAST SQUARES IN CALIBRATION: DEALING WITH UNCERTAINTY IN X.ANALYST. VOL. 135. ISSUE 8. P. 1961 -1969 28 90% 5
9 ROZET, E , MARINI, RD , ZIEMONS, E , BOULANGER, B , HUBERT, P , (2011) ADVANCES IN VALIDATION, RISK AND UNCERTAINTY ASSESSMENT OF BIOANALYTICAL METHODS.JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS. VOL. 55. ISSUE 4. P. 848 -858 42 49% 50
10 TANASE, IG , POPA, DE , UDRISTIOIU, GE , BUNACIU, AA , ABOUL-ENEIN, HY , (2015) ESTIMATION OF THE UNCERTAINTY OF THE MEASUREMENT RESULTS OF SOME TRACE LEVELS ELEMENTS IN DOCUMENT PAPER SAMPLES USING ICP-MS.RSC ADVANCES. VOL. 5. ISSUE 15. P. 11445 -11457 28 74% 3

Classes with closest relation at Level 2


Rank Class id link
1 3771 MEASUREMENT UNCERTAINTY//METROLOGIA//COVERAGE INTERVAL
2 4161 DRY COMBUSTION//JOURNAL OF THE ASSOCIATION OF PUBLIC ANALYSTS//WALKLEY BLACK METHOD
3 3761 MULTIPLICATIVE CALCULUS//NON DETECTS//LEFT CENSORED DATA
4 4093 FOOD TECHNOLOGY IN AUSTRALIA//FOOD AUSTRALIA//BACTERIA DETECTING SYSTEM
5 2095 JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY//JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES//NEUTRON ACTIVATION ANALYSIS
6 4188 APPLIED KINESIOLOGY//BLOOD LEAD DETERMINATION//HEMATOLOGICAL AND CLINICOCHEMICAL PARAMETERS
7 105 SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY//JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY//SPECTROSCOPY
8 3743 FIELD ANALYT STUDIES TECHNOL//SLUDGE MELTING PROCESS//NUCLEAR ENGINEERING INTERNATIONAL
9 421 CHEMISTRY, ANALYTICAL//JOURNAL OF CHROMATOGRAPHY A//JOURNAL OF CHROMATOGRAPHY
10 2605 ADV SPECT//OPEN PATH FTIR//APPLIED SPECTROSCOPY

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