Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2105

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.

1760

in api coa contains only process impurities and in product coa contains degradation impurities?

318

if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

275

all types of questions asked at the cipla interview

4135

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 ?

2099

could negative ions be produced by bombardment process in mass spectrometry?

1290

on saturation solubility study data how we can find out the bcs class of drug?

358

what is mean by peak intigrity?

337

How to establish relative response factor for hplc. Why it is required?

698

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...

1556

inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

289

why we use a particular hplc column for a particular compound give reasons?please

2269

on the basis of bcs class how to proceed the solubility?

278

what are the guidelines for analytical method validations?

591