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- Posts: 2
- Joined: Fri Feb 28, 2020 5:15 am
Hi every one,
What is the limit % of RRT can we consider as an impurity while taking into calculation based on RT's.
Ex. Main peak RT is about 7.46 min, RRT for the impurity is 1.67. In sample RT of peak observed peak is 12.61 min. If I calculate the RRT, is 1.69. Could I consider the peak as my impurity peak. What could be the allowable % of RRT.
If USP told to calculate impurity by RRT . From which RT (Main peak of STD solution or main peak of test solution) considered for RRT
Please help me. Is there any reference for this, if it is please give . Thank you very much for you help in advance.
What is the limit % of RRT can we consider as an impurity while taking into calculation based on RT's.
Ex. Main peak RT is about 7.46 min, RRT for the impurity is 1.67. In sample RT of peak observed peak is 12.61 min. If I calculate the RRT, is 1.69. Could I consider the peak as my impurity peak. What could be the allowable % of RRT.
If USP told to calculate impurity by RRT . From which RT (Main peak of STD solution or main peak of test solution) considered for RRT
Please help me. Is there any reference for this, if it is please give . Thank you very much for you help in advance.
