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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how does h2so4 prevent oxidation of mohr salt before it is titrated?

1 3203

In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.

1 2828

in HPLC injection volume is increase ,R.T will increase ?

Claris Lifesciences,

5 9976

How to caluculate the RRF and correction factor in hplc

Alkem Labs, Aurobindo, Rakshit Drugs, SDLPL,

1 14379

What is the optimum period of storage of indicators?

Orchid Chemicals and Pharmaceuticals,

1 4391

what is the most common FT-IR source used for the MID&Near IR regions?

Dr Reddys, Piramal Enterprises,

1 5391

How much carbon loading in nomalphase columns?

5 7839

Chromatographic Purity is a Qualitative analysis

Shasun Chemicals,

2 5415

what is the limit for KF Factor ,we take factor using water we will found factor between 6 to 7 ,while on KF Reagent bottle mentioned 5 mg/ml water content.if we not use dried methanol it is effect on factor.

Atul,

1 2801

Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2725

Why we use methanol as solvent in kf standardisation. Why not other solvent?

Caplin Point, Epione Labs, Hetero,

2 6954

if relative response factor is 1.07, to select how much value

Natco,

1 4440

What is the use of ELSD in HPLC?

Anthem,

3 6616

What is difference between FID and TCD in gas chromatography

Cipla, VPCPL,

1 10442

What is the difference between high pressure gradient and low pressure gradient in hplc?

Cipla,

1 7301


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2629


in which situation require to take incident in validation?

1727


process of Diclofenac sodium,IP.

2211


what is biorelivent dissolution media?

807


How can we calculate offset value pH measurment

1510


what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

10000


how many types of balance calibration test?

2300


how the compound separate in coulunm,explain

2533


Which parameters require to do in tech transfer?

754


what is mean by ambient temperature?

916


why holium oxide prepared in 10% HCLO4 SOLUTION

1462


How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2546


In which situation we require to analytical method validation of excipient?

790


if peak get problamatic then what require to do?

805


which are the sizes of capsules?

966