How we fix the validity period of a Normal solution and
re-standardization due date
Answer Posted / shravan kumarm
Initially we have to prepare a normal solution and to
standardise that solution against aknown fresh normal
solution.After that in particular time intervals for
examples o th day ,7 th day ,15th day and 30th day we have
to restandardise that initial normal solution against a
fresh known noramal solution each time .up to which
interval the normality of initial solution will not differ
by more than +/-0.002,that interval day we can fix it as
validityperod.In this mean time we have to consider the
physical apperaence of the solution also in to cosideration.
| Is This Answer Correct ? | 14 Yes | 1 No |
Post New Answer View All Answers
for inorganic molecules require to do RS, Assay and disso?
on saturation solubility study data how we can find out the bcs class of drug?
what is %labelled amount in content uniformity of dosage unit and its calculation?
mahagenco syllabus for the post of chemist
In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.
What is aggregate and fragments in SEC?
in which situation ion pair agent require to use?
can i use hplc detector to uplc and why?
Why only 1.2 million lux hours require in photostability study?
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
What is rs test why we are performing rs test?
What is the formula for relative diffrence for standard solution in solution stability in validation?
How to start the dissolution development for unknown tab?
what type of question will ask in the interview of lab chemist.
in which situation ion pair require to use?