Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

tell me about aliphatic acid estimation by hplc which columns can we use

Dr Reddys,

1 2631

does water content by KF will calculate only external moisture absorbed or the ligand ? (for ex copper sulphate pentahydrate)

NA,

1396

Why we perform the ir analysis?

Sequent,

3 3474

difference between calibration and validation

Mylan,

2 4002

why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

1727

Data was integrated with RRT CONCEPT OR Overlay with SSTchrmatogram concept which is better?

1 2252

what is the difference between qualitative analysis and quantitative analysis and explain them?

Dr Reddys,

1 2537

why disodium tartarate used in karl-fischer instrument ?.

Dishman,

1 2024

why does used dry caffien in HPLC calibration?

Dishman,

1522

Why we don't add Hcl, HNO3, H3PO4 in residue on ignition, why we add H2SO4

1 3108

What is gelatinization?

Nestle,

1141

What is FFA, PV, and PAV value in oil.

Nestle,

1 3063

Why we check moisture,ash & AIA in product

1368

When recording an IR spectrum in the lab, we take no special precautions to account for the presence of oxygen, nitrogen, or argon in the air. What are the consequences of this?

1 1865

about method developement in hplc

1189


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Un-Answered Questions { Analytical Chemistry }

why require to add enzymes in capsules dissolution only? is it require to tablet also?

236


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

323


In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

2415


what is definition of validation? which components are followed give detail?

1789


What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

8269






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

351


How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

3547


What is diffrence between extractable volume and deliverable volume? Answer pls

3863


how you start the solubility study?

300


about method developement in hplc

1189


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

325


How to start the dissolution development for unknown tab?

1104


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

1746


How to fix the sample conc. in Related substances test by HPLC?

583


all types of questions asked at the cipla interview

4112