CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

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

trans-ZEN
Di / (mg/kg)
Participating institutes

The subsequent comparison CCQM‑K154.a.1 was launched at the April 2019 CCQM Organic Analysis Working Group meeting in order to repeat measurements of INTI samples.

The samples are indicated by A, B....

(CBKT) - sample provided via the "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme; (own) - the sample is provided by the institute.

CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

Degrees of equivalence represented by Di = (wI - wR)/wand its expanded uncertainty Ui at a 95 % level of confidence, both expressed in %.

trans-ZEN
Di / %
Participating institutes

The subsequent comparison CCQM‑K154.a.1 was launched at the April 2019 CCQM Organic Analysis Working Group meeting in order to repeat measurements of INTI samples.

The samples are indicated by A, B....

(CBKT) - sample provided via the "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme; (own) - the sample is provided by the institute.

CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

Degrees of equivalence represented by Di = (wI - wR) 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
UME (CBKT) A -0.11 0.28
UME (CBKT) B -0.14 0.27
NMISA (own) A 0.12 0.27
NMISA (own) B 0.10 0.31
NIM (own) A -0.18 0.47
NIM (own) B -0.07 0.36
NIM (CBKT) A 0.24 0.49
NIM (CBKT) B 0.10 0.33
INTI (CBKT) A 0.40 0.38
INTI (CBKT) B 0.36 0.34
INMETRO (CBKT) A 0.26 0.34
INMETRO (CBKT) B 0.17 0.71
EXHM (own) A -0.20 0.38
EXHM (own) B -0.27 0.38
KEBS (CBKT) A 0.12 0.30
KEBS (CBKT) B -0.05 0.29
NIMT (CBKT) A 0.28 0.40
NIMT (CBKT) B 0.22 0.35
NRC (own) A -0.40 1.40
NRC (own) B -0.18 1.38
INTI (CBKT) C -0.11 0.32
INTI (CBKT) D -0.11 0.34
Participating institutes
CCQM-K154.a
CCQM-K154.a.1

The subsequent comparison CCQM‑K154.a.1 was launched at the April 2019 CCQM Organic Analysis Working Group meeting in order to repeat measurements of INTI samples.

The samples are indicated by A, B....

(CBKT) - sample provided via the "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme; (own) - the sample is provided by the institute.

CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

Degrees of equivalence represented by Di = (wI - wR)/wand its expanded uncertainty Ui at a 95 % level of confidence, both expressed in %.

LABi Di Uneg,i Upos,i
%
%
%
UME (CBKT) A -0.88 2.22
UME (CBKT) B -1.14 2.10
NMISA (own) A 0.99 2.18
NMISA (own) B 0.81 2.50
NIM (own) A -1.41 3.68
NIM (own) B -0.54 2.83
NIM (CBKT) A 1.86 3.83
NIM (CBKT) B 0.77 2.54
INTI (CBKT) A 2.69 2.57
INTI (CBKT) B 2.40 2.35
INMETRO (CBKT) A 1.76 2.33
INMETRO (CBKT) B 1.16 4.92
EXHM (own) A -1.34 2.50
EXHM (own) B -1.77 2.49
KEBS (CBKT) A 0.85 2.02
KEBS (CBKT) B -0.35 1.95
NIMT (CBKT) A 1.91 2.72
NIMT (CBKT) B 1.47 2.41
NRC (own) A -0.6 2.1
NRC (own) B -0.27 2.08
INTI (CBKT) C -0.77 2.13
INTI (CBKT) D -0.77 2.31
Participating institutes
CCQM-K154.a
CCQM-K154.a.1

The subsequent comparison CCQM‑K154.a.1 was launched at the April 2019 CCQM Organic Analysis Working Group meeting in order to repeat measurements of INTI samples.

The samples are indicated by A, B....

(CBKT) - sample provided via the "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme; (own) - the sample is provided by the institute.

Comparison
Comparison close
CC comparison
Linked comparison
CCQM-K154.a
Metrology area, Sub-field Chemistry and Biology, Organics
Description Trans-zearalenone (ZEN) in acetonitrile (ACN)
Time of measurements 2018
Status Approved for equivalence
Final Reports of the comparisons
References

CCQM-K154.a Registration and progress form

Measurand Mass fraction of trans-zearalenone (ZEN) in acetonitrile (ACN) (in mg/kg)
Transfer device Dedicated samples
Comparison type Key Comparison
Consultative Committee CCQM (Consultative Committee for Amount of Substance)
Conducted by CCQM (Consultative Committee for Amount of Substance)
Comments
 
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

INMETRO

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

INTI

Instituto Nacional de Tecnologia Industrial, Argentina, SIM

KEBS

Kenya Bureau of Standards, Kenya, AFRIMETS

NIM

National Institute of Metrology, China, APMP

NIMT

National Institute of Metrology (Thailand), Thailand, APMP

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

NRC

National Research Council, Canada, SIM

UME

TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET

CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

The key comparison reference value wR and its associated standard uncertainty uR are defined as the determination of mass fraction of each sample carried out by the International Bureau of Weights and Measures (BIPM).

 

CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

The key comparison reference value wR and its associated standard uncertainty uR are defined as the determination of mass fraction of each sample carried out by the International Bureau of Weights and Measures (BIPM).

 

CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

wKCRV         determined key comparison reference value for specified sample

(wKCRV)   combined standard uncertainty of wKCRV

(wKCRV)   expanded uncertainty of wKCRV at 95 % level of confidence where Ui = 2 ui

wi                 measured mass fraction reported by laboratory iLabi

u(wi)       combined standard uncertainty of wi

U(wi)       expanded uncertainty of wi at 95 % level of confidence where Ui = 2 ui

Di                           determined absolute deviation from the Key Comparison reference Value (KCRV)

Ui                           combined and expanded uncertainty of Di

Q. R.                      quantification range


The subsequent comparison CCQM‑K154.a.1 was launched at the April 2019 CCQM Organic Analysis Working Group meeting in order to repeat measurements of INTI samples.

The samples are indicated by A, B....

(CBKT) - sample provided via the "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme; (own) - the sample is provided by the institute.

CCQM-K154.a and CCQM-K154.a.1

MEASURAND         trans-zearalenone (trans-ZEN) in acetonitrile (ACN)

NOMINAL VALUE       from 12 mg/kg to 68 mg/kg

 

wKCRV         determined key comparison reference value for specified sample

(wKCRV)   combined standard uncertainty of wKCRV

(wKCRV)   expanded uncertainty of wKCRV at 95 % level of confidence where Ui = 2 ui

wi                 measured mass fraction reported by laboratory iLabi

u(wi)       combined standard uncertainty of wi

U(wi)       expanded uncertainty of wi at 95 % level of confidence where Ui = 2 ui

Di                           determined relative deviation from the Key Comparison reference Value (KCRV)

Ui                           combined and expanded uncertainty of Di

Q. R.                      quantification range


The subsequent comparison CCQM‑K154.a.1 was launched at the April 2019 CCQM Organic Analysis Working Group meeting in order to repeat measurements of INTI samples.

The samples are indicated by A, B....

(CBKT) - sample provided via the "Metrology for Safe Food and Feed in Developing Economies" Capacity Building Programme; (own) - the sample is provided by the institute.