The U. S. Department of Energy’s Mixed-Analyte Performance Evaluation Program (MAPEP) FY 2014...
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Transcript of The U. S. Department of Energy’s Mixed-Analyte Performance Evaluation Program (MAPEP) FY 2014...
![Page 1: The U. S. Department of Energy’s Mixed-Analyte Performance Evaluation Program (MAPEP) FY 2014 Review Shane Steidley DOE Radiological and Environmental.](https://reader035.fdocuments.us/reader035/viewer/2022062719/56649ee75503460f94bf8764/html5/thumbnails/1.jpg)
The U. S. Department of Energy’s Mixed-Analyte Performance Evaluation Program (MAPEP)
FY 2014 Review
Shane SteidleyDOE Radiological and Environmental
Sciences Laboratory ASP Meeting 2014
Sept. 18, 2014
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MAPEP Participant Policy
Participating Laboratories
Inorganic Uncertainties
Strontium 89/90 Air Filter
Certified Reference Materials Update
MAPEP Series 29-30 Overview
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MAPEP Participant Policy
Agree to abide by MAPEP’s System or Export Control Agreement
Labs notified if:
· MAPEP standards are returned to RESL
· Results are not reported in two Series
Non-responding labs will be deactivated
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MAPEP System Usage Agreement
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Export Control Agreement
Export Control Agreement = System Usage Agreement
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Sys Usage Agrmnt
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MAPEP Test SessionSeries
29Series
30
Dates ShippedAugust 2013
March 2014
Laboratories Participating 124 128 Domestic 92 90
International 32 38Proficiency Testing Standards
Shipped 653 644
MAPEP Series 29 & 30 by the Numbers
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Analytical results are not absolute
Uncertainty establishes the range around the result where the true value is expected
Inorganic False Positive and Sensitivity Tests
Inorganic Uncertainty Reporting
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No Uncertainty Reported
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Must Report Numeric Results
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MAPEP Series 30 False Positives
Cs-
13
4
Ni-6
3
Sr-
90
Fe
-55
K-4
0
Zn
-65
Be
rylli
um
Th
alli
um
Co
-57
Zn
-65
MaS30 MaW30 MaW30 RdF30
0
20
40
60
Not Acceptable
Acceptable
Re
po
rtin
g L
ab
ora
tori
es
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MAPEP Series 30 Sensitivity Evaluations
Co-60 Nickel Pu-238MaS30 MaW30 RdF30
0
10
20
30
40
50
60
70
Not Acceptable
Acceptable
Re
po
rtin
g L
ab
ora
tori
es
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New MAPEP Uncertainty Flags
Relative Precision (RP) Flag
RP < 2% N
2 < RP < 15% A
15 < RP < 30% W
RP > 30% N
■ Uncertainty flags are for information only
■ Series 30
●~ 82% Uncertainties = A
●~ 10% Uncertainties = N or <2% or >30%
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“Can I just report my MDL?”
· Report the calculated result and total uncertainty
“Can I report a less than value?”
· No, non-numeric results are not allowed
“What if I’m contractually obligated to use a specific procedure?”
· The laboratory is responsible to ensure the procedure they use produces accurate results
Frequently Asked Questions
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Uranium Isotope Results Reported By Alpha & Gamma Spec
U-234
U-238
U-234
U-238
U-234
U-238
U-234
U-238
U-234
U-238
U-234
U-238
MaS25 MaS26 MaS27 MaS28 MaS29 MaS30
0
10
20
30
40
50
Not AcceptableWarningAcceptable
Rep
ortin
g La
bora
torie
s
--Natural-- ------------- Depleted ----------------- ------- Natural-------
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MAPEP-14-MaS30Radiological Uranium-238
Not Acceptable Acceptable
Acceptable Results =>
Total Dissolution
Gamma Spectrometry
10 out of 45 Laboratories Reported “Acceptable “ Results
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Performance Evaluation of Sr-89/90 in Series 31 Air filter
Many requests for performance testing of fresh fission products· Renewed interest since Fukushima· Sr89/90, I-131, Zr-95/Nb-95, etc.
Twenty-three laboratories request the Sr-89/90 Air Filter· 12 requested Sr-89 out of 32 who routinely analyze Sr-90· 11 who don’t report Sr-90, requested SrF31
Do all 32 labs have analytical capability in Sr-89?
Is there a continued interest in Sr-89/90 or other fresh fission products determinations?
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RESL’s CRM Update
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MAPEP PT Standards available as CRMs
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Certificate of Traceability
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RESL Food CRMs
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RESL CRMs
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Rad Decay Report
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http://www.inl.gov/resl/mapep
· Public access
· Statistical summary
http://mapep.inl.gov
· Requires account /password
· Used for reporting/reviewing data
· Various search utilities, historical performance reviews, graphs, individual laboratory reports, sample descriptions, program information
MAPEP Websites
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http://www.inl.gov/resl/mapep
Send completed forms to [email protected]
Any questions contact MAPEP coordinator
Guy Marlette (208-526-2532), [email protected]
MAPEP Application
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RESL Contacts
Anita Bhatt, RESL Director – [email protected]
Shane Steidley, MAPEP Database – [email protected]
Temple Warwick, Radiochemist – [email protected]
Guy Marlette, MAPEP Coordinator – [email protected]
Thank You for Your Time