Purity by HPLC test

Purity by HPLC test. No system suitability injection due to known impurity is nil. Std and sample injection area and RT matching. Without systems suitability its possible to calculate unknown impurity and total impurity.

System suitability injections to check the functioning of system, column and mobile phase before starting the batch analysis…%RSD to be check for like R.T /area, theoretical plates or resolution depending upon the test method…
After the system suitability acceptance criteria complies, proceeding for the batch analysis…
Known and unknown Impurities related R.T/RRT mentioned in test method…

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Thank you Jayaram,