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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is difference between Potency & purity

3 15046

how to hplc calibrated

Dr Reddys, Glochem,

4 52685

state the principle of gas chromatography?

5 13673

Why noise test is performed at 254 nm in calibration of HPLC system?

4 18165

some compound havving uv region but not give much more response during hplc analysis

2 7469

I have got selected for Aurobindo Pharma AR&D, HR person is asking me to sign in agreement. can I join?

Aurobindo,

19 44073

Why sulfuric acid is used in sulphated ash / residue on ignition test.

CS Pharmaceuticals, Dr Reddys, GVK, HPLC, Micro Labs, Samrudh, Watson Pharmaceuticals, Wings Customer Care,

9 78265

what are the basic requirement for the WHO audit?

BioPlus,

1 9153

What is the thickness of polystyrene film?

Pharmaffiliates Analytics and Synthetics,

8 19299

During Validation study, Recovery is passing at all levels but Linearity is failing. Justify?

Mylan, Torrent Pharma,

1 5089

What is Stray light ? & what is the IMP of this

2 10121

how can I make the copper get white bye any salt or acit?

2166

If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

2255

why we use only sucrose in the calibration of polarimeter?

Kilitch,

7 28257

What is the Deference between Bulk density & Tap density ?

Hikma Pharmaceuticals, Neuland, Reddy Labs,

2 25600


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

what is the purge flow & how to calculate

2580


function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2621


what is the structure of DOWEX-50

5472


What is third generation HPLC Columns?

1945


How much is the standard area for glc analysis

2230


In which situation we require to prepare the standard solution from sample in Related substance method?

730


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3169


give clarity of linearity and range in method validation

2394


how much mass should be there in volumetric flask while in preparation of sample for assay? 

2528


What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

2001


what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2638


why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

1659


how pda detector works over uv?

702


from where i get mortar pastle for glass bottle crush? it's required for testing of it?

2242


WHY pKa value is more important than pH value of the mobile phase in HPLC?

1732