IS THERE ANYWHERE MENTION THAT THE RE PROCESS BATCH REQUIRE
TO KEPT STABILITY STYDY
Answers were Sorted based on User's Feedback
Answer / ankur dwivedi
yes. It is mandatory to keep the re-processed batch for the
stability study as during the re-processing the impurity
levels can be changed and also polymorphic changes may be
possible if using other solvents. Its mentioned in GMP
practices. Nowadays it is one of the criteria from the
Regulatory Department. USFDA person can also ask for the
same. You should go through some good and standard GMP
reference books.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / satyakumarreddy
As per Sechudle-H every reprocessed batch stability must be conducted
| Is This Answer Correct ? | 2 Yes | 0 No |
how to calculate the Step and ripple accuracy for pump gradient test for UPLC?
How to calculate signal to noise ratio by this formula 2H/h where h from where and how to measure
what is the difference between potentiometric assay and hplc assay
How to Prepare Dilute Sodium hydroxide solution?
Why potassium hydrogen pthalate is used for perchloric acid And naoh. Why it is used for both acid and base
6 Answers Vijayasri Chemicals,
How to set analyticl specification for combination products?
How to prepare 50 ppm ammonia solution form 25% ammonia solution?
In Analytical method development related substance method when did follow w/w method when did follow area normalisation method
2 Answers Dr Reddys, Sun Pharma,
what is difference b/w spectroscopy, Spectrometry and Spectrophotometry ?
why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate
HOW TO CALIBRATE HPLC OVEN
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?