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what is diffrence between Specific optical rotation, optical
rotation?
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D above ans r wrong
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effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?
What is the use of tlc and hplc? And when and where use?
how require to set assay concentration for standard and sample?
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 determine water content of bis tetrazole amine mono ammonium salt
how to calculate elemental impurities?
why we use a particular hplc column for a particular compound give reasons?please
why multimedia dissolution require to do?
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?
How to fix the sample conc. in Related substances test by HPLC?
For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
Difference between the quantitative analysis and qualitative analysis?
What is dose dumping? why require to do?
we can use expired sample for validation and analyst qualification?
[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?
