how can you decide API molucule acedic or basic compound by test?

Answer Posted / shankesh patil

Check the 1 % of solution pH

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Qc interview questions

1251


[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

353


How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

1797


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

365


Explain the relations between number of carbon atoms in alkanes and retention time ?

1630






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.

1766


in sampling of raw material which side is pasted sampled labels

1249


sop of a uv visible spectrophotometer double beam elico model

5357


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

348


if tech transfer fails whay require to do?

334


how to calculate elemental impurities?

549


My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1115


what is mean by dissolution biowaiver study?

328


what is the principle involved in turbidometry and nephelometry ?

3631


What is the calibration of uv process and preparation

1508