What is mean by peak tailing in case of GC?5 10991
What is diffrence between residue on ignition and sulphated ash?37 150130
how can standardized of HCl of 0.1 N7 38797
What is the difference b/w OVI Solvents and Residual Solvents in case of Gas Chromatogaphy and What is its Detection Limit?8 29780
what is the diffrence between absorbance and absorption in the beer,s lamber formula ?2 8182
one gram of which below elements has the most atoms in its? a) H b) D C)T D) He4 3898
0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O41 2008
Why we use Uracil for HPLC calibration in Detector wave ength accuracy test?5 19679
k.f principle in finding out moisture content1 11025
What is difference btw UV detector & RID detector4 14624
What's the importance of these procedures?1 3152
why we use vanillin in melting range calibration3 9737
in sampling of raw material which side is pasted sampled labels
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
Why irmoisture balance is used for corrugated box moisture testing
Basic principle of ESI?
Tell me something about Vitamin A test method by HPLC
WHY pKa value is more important than pH value of the mobile phase in HPLC?
Identify problem faced when mass spectroscopy is used with HPLC system ?
about method developement in hplc
are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????
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.
Principle of single pan analytical balance
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
in gas chromatography what is the difference between gas flow rate and average linear velocity ?