Answer Posted / t.sudheer

Because in polystyrene film all functional groups
executed.and polystyrene film is made by the polymer of
styrene.its having highly durability and stabeled at any
temparature because its made by the polymers.

What is viod volume and peak purity in HPLC?

2884

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If combination product how require to identify which imp is of which api?

840

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if you given one product then which tests you will perform?

709

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What is delay volume?

1398

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what is diffrence between specificity and selecivity?

787

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Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2187

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what are the guidelines for analytical method validations?

1106

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USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

2016

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How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3222

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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.

3130

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Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2968

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if peak get problamatic then what require to do?

805

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WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2613

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Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

741

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if instrument calibration fails then what require to do?

980

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