Explain acid gas?

587

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.

2601

Explain the properties of carbohydrates?

540

is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

1661

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

317

what is allowable limit Of stray light for a spectrophotometer laboratory instruments ?

986

Why is acetic acid added?

608

What is hybridyzation ? How can i find that which type hybridyzation in perticular compound like in CH4(hy is sp3).

3425

Why we use DPPH in ESR and DPH in fluorescence spectroscopy?

2081

Tell me the common name of the molecule dihydrogen dioxide?

571

Explain the secondary structure of proteins?

551

What is the formula you will use to calculate how many millilitres of 5.5 m naoh are required to prepare 400 ml of 1.5m naoh?

579

What is bed worth rule? : Electrochemistry Corrosion

511

How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

2860

if instrument calibration fails then what require to do?

461