what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2598

Which parameters require to do in tech transfer?

713

How we can identify process related and degradation impurity in single method with short period?

780

What modification is required for the atomic theory in order to explain the existence of isotopes, and modern view of atomic nuclei and electrons?

2228

For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

2283

some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

2620

Why a1% value is used for some product ? What is the criteria for selection a1% value ?

2308

Explain the ionic equation for hcl-naoh?

985

What is split ratio in Gc? Splitless? how requirr to select?

847

What is acid anhydride of h2co3?

979

What are acounting Pi electron's?

2313

What are the factors that affect the viscosity of a liquid?

981

What is the unit of ph?

985

What is the chemical formula of alum?

1086

We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1860