SPDS 09052014 - page 137

SMPR Key Points:  Identification Method
Intended Use
: Reference method for dispute resolution.
Applicability
: Identification of PDE5 inhibitors in dietary 
ingredients and supplements. 
Identification Method:
A method that is capable of 
identifying the PDE5 inhibitors listed in Annex II and 
providing at least class identification of other PDE5 
inhibitors based on their structural similarity to the 
d li t d i A II Th id tifi ti
h ld
compoun s s e n nnex  . e en ca on s ou 
be done using technique‐specific, generally acceptable 
criteria, such as those given in 2002/657/EC.
Maximum Time‐To‐Result:  
No maximum time.
SMPR Key Points:  Identification Method
Parameter
Parameter Requirements
Target Test 
Concentration
Minimum 
Acceptable  
Results
Minimum of 33 replicates
90% POI
§
of
boratory Validation
POI @ low 
concentration
representing all target 
compounds in Annex II and all 
matrix types listed in Annex III, 
spiked at or below the designated 
low level target test conc.
100 ppm 
the pooled 
data for all 
target 
compounds 
and matrices
POI @ high 
Minimum of 5 replicates per 
matrix type spiked at 10x the 
10 x low conc
Single La
concentration 
designated low level target test 
conc.
.
100% correct 
analyses are 
expected
POI @ zero 
concentration
Minimum of 5 replicates per 
matrix type. 
0 ppm
§
95% confidence interval
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