One Raw material failed assay test is there any chance for failing purity of that material ?7 7802
What are the differences between GC and HPLC?1 10733
Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?4 8529
What is linearity in HPLC and how will you test?1 14824
What is the difference of time between two consecutive injections in HPLC?2 7378
Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration2 11040
How much sample concentration should i inject against diluted standard in related substances for drug product in hplc analysis1 1749
how to prepare 25 ppm acetone. explian with formula4 10388
What is the diffeence between assay and uniformity of content2 6447
Why sodium hydroxide used for maintain pH of phosphate buffer
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.
In Dissolution Test why limit is define Q+5% what is the role of +5%.
what is the difference between potentiometric titration and karl fischer titration?
what is difference between zero air gas and o2 gas
why we are using hexane in calibration of number of drop per mL
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
if you have given a blank water how you analyse by general analytical techniques?
How we can determine water content in piperazine
In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )
What is gelatinization?
what is the purge flow & how to calculate
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.
What is the purpose of octyl silane columns?
How would you decide dissolution medium for NCE compound of class I drug