From: Implementation of a reference standard and proficiency testing programme by the World Wide Antimalarial Resistance Network (WWARN)
QC Sample
QC1
QC2
QC3
QC4
Assigned value
5
20
100
500
SDPA (%)
SDPA (value)
Lab 1 LLOQ 1
20%
1
15%
3
15
75
Lab 2 LLOQ 20
<LLOQ
25%