what is the difference between melting range & melting point? Which is more significant?5 21900
How to now that my acid is contact with base or base is contact with acid in drugs, is there any techniq to identify the formation of salt(drug)2 4317
what is least count of a balance? How we find out this? Any formula for least count of Analytical balance?11 63132
Explain about Low pressure gradient and High Pressure gradient systems in HPLC?4 19084
what is protocol ? plz Explain me5 7889
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?1732
HPLC Calibration was done in Reverse Phase, but not in normal phase why explain?11 22341
what are the standard methods for HPLC?1407
What is the procedure for investigation of an OOS (Out of specification) results?4 14789
For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?
A ha tc is actual defination of retention time?
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
what is difference between zero air gas and o2 gas
How to determine water content of bis tetrazole amine mono ammonium salt
WHY given much noise PDA dector then VWD Dector
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
what type of questions asked on analytical balance and also give answers................all pharma companies?
Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?
wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language
What is the purpose of octyl silane columns?
What is the main difference between ODS1 and ODS2 Hplc column.
how can I make the copper get white bye any salt or acit?
what is the identification test of volatile substance? what is volatile compound?
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.