How can we calculate offset value pH measurment

1518

Why six unit used for precision?

1357

How you develop a method in HPLC?

2625

in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

845

some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

2658

what is mean by dissolution hydrodynamics?

832

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

917

how you establish the LOQ?

800

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.

2224

how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2610

using gradient pressure in gas chromatography are not ?using gradient pressure why

3395

How to set specification of assay, fisdolution and related substances?

886

in each media we require to use SLS? how to proceed?

795

How to set analytical specification for combination products?

826

for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

6075