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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

In dissolution test s1 stage we are getting one bowl 40 % out of 6 bowls what is the root cause you find and how proceed next step? ( Q is 80%)

Reddy Labs,

3 4522

why we inject sample TWICE in ASSAY by HPLC analysis but in RS once?

Aurobindo, DRL, Neuland,

4 11709

What id the resolution factor

1 4166

what is a placebo peak

GMP Pharma, Optimus,

2 6290

what is the effect of injection volume calculate flow rate in perkin elmer headspace? (ccm parameter in HS)

1 3010

How can we calculates the solubility of the drug in different medias by injecting in to hplc????(solubility studies)

Super Pharmaceuticals,

2 4788

What is the use of Holmium (III) Oxide???

Finar Chemicals,

1 5284

India is. Under which zone as per QF1.?

Acebright, Aurobindo, Gland Pharma,

4 16273

how to calculate the Step and ripple accuracy for pump gradient test for UPLC?

Wockhardt,

1 10110

why salicylic acid not use for dissolution.

Cipla, Indo Baijin Chemicals,

2 5715

Which water can use Hplc analysis

BioGenomics, Dr Reddys, Reddy Labs,

9 13803

if you have given a blank water how you analyse by general analytical techniques?

1977

what is the analytical procedure for COD and BoD

Dai-Ichi,

1 4855

Why pH lies between 0 to 14 only

PI Industries, Unimark Remedies,

4 11467

In chromatograpbic purity 90% is there, in assay 70% is there. How will you prove remaining 30%.

Dr Reddys,

3 8436


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

what is mean by ambient temperature?

865


why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

2206


how we can identify the impurity is coming below loq at transfering site?

814


How we can identify process related and degradation impurity in single method with short period?

760


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

840


why does used dry caffien in HPLC calibration?

1986


for inorganic molecules require to do RS, Assay and disso?

672


identification is for unknown? qualification for known? reporting for LOQ?

671


If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

933


why we are using hexane in calibration of number of drop per mL

1665


What is shaking level in GC?

741


What is the calibration of uv process and preparation

1942


if peak get problamatic then what require to do?

745


how you determine moist.of NaOH sol or NaOH flacks

2180


what is diffrence between specificity and selecivity?

715