Chemistry Interview Questions
Questions Answers Views Company eMail

Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

278

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

335

how to qualify the impurity?

289

what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

315

What is the formula for relative diffrence for standard solution in solution stability in validation?

284

How require to perform linearity as per ANVISA? What are the acceptance criteria?

682

[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

280

in api coa analytical method given as Ph Europe which api used in formulation in this api coa method given Ph Europe so for Analytical methic for finished product we require to refer Ph Europe monograph ok n.a.? So any extra impurities which is given in USP monograph of api or finished product need not require to monitor on above case n.a.? but how require to do specificity?

194

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

319

we can use expired sample for validation and analyst qualification?

276

If vendor having more imp than monograph then how to proceed? and how to set spec?

312

If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

330

how require to set assay concentration for standard and sample?

337

What is dose dumping? why require to do?

271

Please give idea about method development for cleaning method and how maco level establish

247


Un-Answered Questions { Chemistry }

why use of sulfuric acid in roi test in pharmaceutical industry

1895


Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2280


How to set analyticl specification for combination products?

276


Find out how to make artifacts the maxwell boltzmann theory of gases . ps. I don't speak English that well

977


composition of gun metal

1528






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

2911


What is aggregate and fragments in SEC?

1551


sop of a uv visible spectrophotometer double beam elico model

5327


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

1605


What are constituents of brass?

696


Suppose u have combipack product and u get 2 or more peaks which are other than there placebo then what we can do

1888


what you do when compound having dwel wavelength?

253


What is the requirement to give RFlow when using RID detector?

2566


Why dissolution test is not performed in all of the products

2008


can you pls provide chemistry previous papers for the post of trainee chemist in ap genco

2126