what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

6330

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.

1095

why are measure gas flow " ml " in Gas chromatography

447

what is the structure of DOWEX-50

3815

Why perchloric acid used for potentiometric titration

1388

what type of question will ask in the interview of lab chemist.

2180

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

2187

What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

5614

how can give the expiry period and restadardisation of volumetric solution

1367

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.

952

In Dissolution Test why limit is define Q+5% what is the role of +5%.

1617

What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

1389

While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

1130

What is the calibration of uv process and preparation

781

What is the main difference between ODS1 and ODS2 Hplc column.

2146