CCQM-K154.d

 

MEASURAND   Mass fraction of patulin [PAT] present in solution acetonitrile (ACN)

NOMINAL VALUE 9 mg/kg to 68 mg/kg

 

Degrees of equivalence represented by Di = (xi - xRi) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mg/kg.

Mass fraction of patulin [PAT] present in solution acetonitrile (ACN)
Di / mg/kg
Participating institutes

(CBKT) – value assigned stock solution of PAT in ACN supplied within the Mycotoxin Metrology Capacity Building and Knowledge Transfer (MMCBKT) project of the ‘Bureau International des Poids et Mesures’ (BIPM) as part of its "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme.

(CRM) – non-proprietary reference materials for the preparation of their own PAT solution.

(own) – own value assigned stock solution of PAT.

CCQM-K154.d

 

MEASURAND   Mass fraction of patulin [PAT] present in solution acetonitrile (ACN)

NOMINAL VALUE 9 mg/kg to 68 mg/kg

 

Degrees of equivalence represented by Di = (xi - xRi) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in mg/kg.

LABi Di Uneg,i Upos,i
mg/kg
mg/kg
mg/kg
INM (CBKT) A 0.16 0.36
INM (CBKT) B 0.28 0.33
EXHM (own) A -0.21 0.39
EXHM (own) B -0.29 0.50
NIMT (CBKT) A 0.19 0.41
NIMT (CBKT) B 0.19 0.39
NIS (CRM) A 0.35 0.62
NIS (CRM) B 0.32 0.60
UME (CBKT) A -0.07 0.62
UME (CBKT) B -0.04 0.58
INRAP (CBKT) A 0.18 0.67
INRAP (CBKT) B 0.18 0.62
INMETRO (CBKT) A 0.22 1.12
INMETRO (CBKT) B 0.29 0.65
LATU (CBKT) A -0.25 0.87
LATU (CBKT) B -0.10 0.70
INTI (CBKT) A 0.39 0.75
INTI (CBKT) B 0.24 0.74
NIM (own) A 0.52 0.96
NIM (own) B 0.46 0.98
NIM (CBKT) A 0.27 1.06
NIM (CBKT) B 0.20 1.08
SASO (CRM) A 0.97 1.55
SASO (CRM) B 1.00 1.53
NMISA (own) A 0.40 2.21
NMISA (own) B 0.88 2.24
Participating institutes
CCQM-K154.d

(CBKT) – value assigned stock solution of PAT in ACN supplied within the Mycotoxin Metrology Capacity Building and Knowledge Transfer (MMCBKT) project of the ‘Bureau International des Poids et Mesures’ (BIPM) as part of its "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme.

(CRM) – non-proprietary reference materials for the preparation of their own PAT solution.

(own) – own value assigned stock solution of PAT.

Comparison
Comparison close
CC comparison
Linked comparison
CCQM-K154.d
Metrology area, Sub-field Chemistry and Biology, Organics
Description Patulin (PAT) in acetonitrile (ACN)
Time of measurements 2022
Status Approved for equivalence
Final Reports of the comparisons
Measurand Mass fraction
mg/kg
Comparison type Key Comparison
Consultative Committee CCQM (Consultative Committee for Amount of Substance)
Conducted by CCQM (Consultative Committee for Amount of Substance)
Comments Gravimetric preparation and value assignment of patulin (PAT) in acetonitrile (ACN).
Results published on 14th February 2024
Pilot institute BIPM
Bureau International des Poids et Mesures
BIPM - International Organization
Contact person R. Josephs

+33 (0) 1 45 07 70 55
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
BIPM

Bureau International des Poids et Mesures, BIPM - International Organization, N/A

EXHM/GCSL-EIM

National Laboratory of Chemical Metrology/GCSL - Hellenic Institute of Metrology, Greece, EURAMET

INM (CO)

Instituto Nacional de Metrología de Colombia, Colombia, SIM

INMETRO

Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM

INRAP

Institut National de Recherche et d'Analyse Physico-Chimique, Tunisia, AFRIMETS

INTI

Instituto Nacional de Tecnologia Industrial, Argentina, SIM

LATU

Laboratorio Tecnologico del Uruguay, Uruguay, SIM

NIM

National Institute of Metrology, China, APMP

NIMT

National Institute of Metrology (Thailand), Thailand, APMP

NIS

National Institute for Standards, Egypt, AFRIMETS

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

SASO-NMCC

National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET

UME

TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET

CCQM-K154.d

 

MEASURAND   Mass fraction of patulin [PAT] present in solution acetonitrile (ACN)

NOMINAL VALUE 9 mg/kg to 68 mg/kg

 

For each Labi, the PAT mass fraction value used to establish the Key Comparison Reference Value xR,and its associated uncertainty uR,i was assigned by the BIPM according to the calibration procedure described in the Final report.

Labi xR,i uRi
mg/kg mg/kg
INM (CBKT) A 9.84 0.13
INM (CBKT) B 9.72 0.10
EXHM (own) A 10.21 0.12
EXHM (own) B 10.29 0.20
NIMT (CBKT) A 12.41 0.14
NIMT (CBKT) B 12.41 0.12
NIS (CRM) A 14.15 0.18
NIS (CRM) B 14.18 0.17
UME (CBKT) A 14.72 0.23
UME (CBKT) B 14.69 0.20
INRAP (CBKT) A 15.73 0.23
INRAP (CBKT) B 15.73 0.19
INMETRO (CBKT) A 19.02 0.52
INMETRO (CBKT) B 18.95 0.24
LATU (CBKT) A 20.33 0.34
LATU (CBKT) B 20.18 0.21
INTI (CBKT) A 22.45 0.27
INTI (CBKT) B 22.60 0.26
NIM (own) A 25.69 0.42
NIM (own) B 25.75 0.42
NIM (CBKT) A 25.85 0.40
NIM (CBKT) B 25.92 0.41
SASO (CRM) A 26.19 0.39
SASO (CRM) B 26.16 0.37
NMISA (own) A 63.40 0.86
NMISA (own) B 62.92 0.88

 

For each sample, the degree of equivalence of each laboratory i with respect to the reference value is given by a pair of terms both expressed in mg/kg:

Di = (xi - xRi ) and Ui, its expanded uncertainty at a 95% level of confidence, Ui = 2(ui 2 + uRi 2)1/2

 

(CBKT) – value assigned stock solution of PAT in ACN supplied within the Mycotoxin Metrology Capacity Building and Knowledge Transfer (MMCBKT) project of the ‘Bureau International des Poids et Mesures’ (BIPM) as part of its "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme.

(CRM) – non-proprietary reference materials for the preparation of their own PAT solution.

(own) – own value assigned stock solution of PAT.

CCQM-K154.d

 

MEASURAND   Mass fraction of patulin [PAT] present in solution acetonitrile (ACN)

NOMINAL VALUE 9 mg/kg to 68 mg/kg

 

xi   measured mass fraction reported by laboratory iLabi

ui   combined standard uncertainty of xi

Labi xi ui
mg/kg mg/kg
INM (CBKT) A 10.00 0.13
INM (CBKT) B 10.00 0.13
EXHM (own) A 10.00 0.154
EXHM (own) B 10.00 0.154
NIMT (CBKT) A 12.60 0.152
NIMT (CBKT) B 12.60 0.152
NIS (CRM) A 14.5 0.25
NIS (CRM) B 14.5 0.25
UME (CBKT) A 14.65 0.21
UME (CBKT) B 14.65 0.21
INRAP (CBKT) A 15.9157 0.2387
INRAP (CBKT) B 15.9157 0.2387
INMETRO (CBKT) A 19.24 0.22
INMETRO (CBKT) B 19.24 0.22
LATU (CBKT) A 20.08 0.28
LATU (CBKT) B 20.08 0.28
INTI (CBKT) A 22.84 0.26
INTI (CBKT) B 22.84 0.26
NIM (own) A 26.21 0.24
NIM (own) B 26.21 0.24
NIM (CBKT) A 26.12 0.35
NIM (CBKT) B 26.12 0.35
SASO (CRM) A 27.16 0.67
SASO (CRM) B 27.16 0.67
NMISA (own) A 63.8 0.69
NMISA (own) B 63.8 0.69

 

(CBKT) – value assigned stock solution of PAT in ACN supplied within the Mycotoxin Metrology Capacity Building and Knowledge Transfer (MMCBKT) project of the ‘Bureau International des Poids et Mesures’ (BIPM) as part of its "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme.

(CRM) – non-proprietary reference materials for the preparation of their own PAT solution.

(own) – own value assigned stock solution of PAT.