How to calculate mass balance in RS after degradation



How to calculate mass balance in RS after degradation..

Answer / vicky

1. Perform assay(A1) of undegraded sample say lot x
2. Perform Assay(A2) and RS of Degraded sample of same lot x
3.Calculate mass balance as (A2+Total degradation)/A1*100

Ideally mass balance should be near to 100 but generally it wont be due to factors like non chromophoric impurity production or production of impurities with RRF below 0.8 or above 1.2 etc

Is This Answer Correct ?    2 Yes 0 No

Post New Answer

More Analytical Chemistry Interview Questions

WHY given much noise PDA dector then VWD Dector

0 Answers  


IF THE COMPOUND PKA IS 5.3 WHY WE ARE ADJUSTING PH+/-2 OF THE COMPOUNDS PKA. WHAT IS THE CONDITION

2 Answers   Dr Reddys, Reddy Labs,


Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

0 Answers  


what is the difference between qualitative analysis and quantitative analysis and explain them?

1 Answers   Dr Reddys,


what is the film thickness in ftir

8 Answers  






What is Delay & Dead Volume

2 Answers  


in hplc calibration we are using 0.05% acetone why we are using that one and what happen when its conc increases or decreases

4 Answers   Aurobindo, Cadila, Martin,


calibrtion procedue of LC-MS

0 Answers   GVK, Matrix,


why cone formation during dissolution?

0 Answers  


How can you prepare 0.05M Ammonium acetate volumetric solution?

2 Answers  


which functional group we can detect in IR?

3 Answers  


What is differences between normality and molarity.in which cases both are used?

1 Answers   GVK,


Categories
  • Organic Chemistry Interview Questions Organic Chemistry (342)
  • Inorganic Chemistry Interview Questions Inorganic Chemistry (123)
  • Analytical Chemistry Interview Questions Analytical Chemistry (1387)
  • Physical Chemistry Interview Questions Physical Chemistry (62)
  • General Chemistry Interview Questions General Chemistry (478)
  • Chemistry AllOther Interview Questions Chemistry AllOther (190)