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we calibrate HPLC once in 6 months while iam doing
calibration i came to know that calibration was failed.
then how can i justify that the samples analyzed on the
system during this 6 months was wright? how can i forward in
to the next step for those batches?

Answers were Sorted based on User's Feedback



we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was ..

Answer / ravi narwade

Whenever we are doing any analysis we are performing the
system suitability test for it, and if the "SST" is passing
no one will raise the question on analysis of samples on
the instrument which fails in calibration.

Is This Answer Correct ?    31 Yes 8 No

we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was ..

Answer / nirchana

if u hv doubt ..thn u can check previous sample tht result u known..tht means any std sample thn match with recent sample

Is This Answer Correct ?    2 Yes 2 No

we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was ..

Answer / k l reddy

Need not to analyze all previous batches but you should
analyze 6 previous batches(recent batches of before
calibration)on different system(which is qualified) and
compare the results with old results. Fallow the same
prociser until the resukts matched with old results.

Is This Answer Correct ?    2 Yes 2 No

we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was ..

Answer / sasikala

Need not to analyze all previous batches but you should
have internal sop which describes how many batches
(immediate previous batches) to be analyzed and how to be
compared. But this anwser not complete one for you.

Is This Answer Correct ?    1 Yes 4 No

we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was ..

Answer / pankaj punjabi

After 6 month calibration is failed,So you have to
reanalyse the previous batches which is analyse for last 6
month.and comapre the results.then only it is justified.

Is This Answer Correct ?    2 Yes 16 No

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