AXIO | Proficiency Testing schemes 2025
What information do you receive in an LGC AXIO PT Report? Your AXIO PT Report will usually be ready within six working days from the reporting deadline of your round – an industry-beating turnaround time. This can either be accessed on PORTAL, and either viewed on the platform or downloaded as a PDF or Excel document. In the report, you will find all the anonymised results returned by the laboratories with performance scores, as well as performance and data statistics. The z-score histogram displays the results of the different laboratories graphically; it is also possible to visualize the results by type of method used.
Anonymized results returned by all the laboratories
Sample: 14 - Elemental contamination in supplements [1] Analyte: Cadmium
Lab ID
Method ICP-M S
Result (pgig)
z score
PH0092 PH0250 PH0267 PH0322
0.925
1.01 *
Other
0.885
0.42 *
ICP-OES
<2.000
ICP-M S
0.810
-0.70 *
PH0335
ICP-OES
0.815
-0.63 *
PH0621
ICP-M S
0.987
-1.94 *
PH0799
AAS
0.857
0.00 *
PH1023
ICP-M S ICP-M S ICP-M S ICP-OES ICP-OES ICP-M S ICP-M S ICP-M S ICP-M S ICP-OES
0.835
-0.33 *
PH1027
0.813
-0.66 *
PH1283
0.345
-7.64 *
PH1310
0.860
0.04 *
PH1314
0.766
-1.36 *
PH1421
0.859
0.03 *
PH1471
0.900
0.64 *
PH1732
0.865
0.12 *
PH1737
0.775
-1.22 *
PH1767
0.780
-1.15 *
[1] This sample is not currently within our scope of accreditation. * Please note. participant performance has been assessed using a z’ score, rather than a z score, in order to account for the measurement uncertainty of the assigned value which is not negligible when compared to the SDPA.
Performance statistics
Assessment Statistic
Unit Assigned Value
Uncertainty of Assigned Value
SDPA Exp. SDPA
Satisfactory Range
Satisfactory % Questionable % Unsatisfactory %
ALL
µg/g 0.857
0.0206
0.0638 0.0670 0.723 to 0.991 93.8%
0.0%
6.3%
Data statistics
Result Statistics
Unit Number of Results
Nuber of Excluded Results
Mean
Median Standard Deviation
Robust Standard Deviation
Result Range
ALL
µg/g 0.857
0.0206
0.0638
0.0670 0.723 to 0.991 93.8%
0.0%
32 lgcstandards.com/AXIO
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