In Force degradation Study Compound is not degrade in any condition , also in higher stress what can i do ?4 7388
4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations1719
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.1293
what type of question will ask in the interview of lab chemist.2504
Why we show ammonia vapours to tlc plate?to which compounds?1 4618
what is the purge flow & how to calculate1575
what is mean by 21 CFR PART? In that what is 21 ?1 11843
is there any exact definition for Theoritical plates ? chennu srinivas5 7695
What is the use of tailing factor ?2 12104
what is the relation of normality & molarity ? give me formula?5 11412
In C8,C18....etc have 4&5 etc... microns Columns is there like that how to separate Chiral columns as per Micron size?1 4649
What is the diff b/n OVI and Residual solvents1 5386
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
give clarity of linearity and range in method validation
How can we calculate offset value pH measurment
As per ICH related substances stability trend limit from initial to shelf life
what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
Explain what is a base line?
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
A ha tc is actual defination of retention time?
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
what is the principle involved in turbidometry and nephelometry ?
what is the origin to prepare standard operating procedure
What is the purpose of octyl silane columns?
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?