Ok … sorry … .i don’t understand you very well … I use a method like HPLC for monitoring cleaning ??
I say this because I am accepting what dictate the cleaning validation guide:
PDA tr No. 29
It is essential to correlate the results from methods used in the cleaning validation studies to theresults from other non-specific methods used That Might Be for routine monitoring of cleaning effectiveness.
Specific test methods are required for validation Generally cleaning of dosage form for manufacturing. Non-specific testing methods can be used in the early stages of bulk drug production and for routine monitoring purposes.
please,why do you say that I must use a method like HPLC for monitoring cleaning ??