In Force degradation Study Compound is not degrade in any condition , also in higher stress what can i do ?4 6303
4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations1354
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.950
what type of question will ask in the interview of lab chemist.2180
Why we show ammonia vapours to tlc plate?to which compounds?1 4071
what is the purge flow & how to calculate1260
what is mean by 21 CFR PART? In that what is 21 ?1 9934
is there any exact definition for Theoritical plates ? chennu srinivas5 6515
What is the use of tailing factor ?2 10940
what is the relation of normality & molarity ? give me formula?5 9764
In C8,C18....etc have 4&5 etc... microns Columns is there like that how to separate Chiral columns as per Micron size?1 4005
What is the diff b/n OVI and Residual solvents1 4755
What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?
What is the difference between spectro meter and spectro photo meter?
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
WHY given much noise PDA dector then VWD Dector
What is the diference between residual solvents and organic volatile matter
How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.
Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?
why disodium tartarate used in karl-fischer instrument ?.
Why sodium hydroxide used for maintain pH of phosphate buffer
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
How you develop a method in HPLC?
USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
can i use hplc detector to uplc and why?