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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 3119

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

1 2753

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

Claris Lifesciences,

5 9723

How to caluculate the RRF and correction factor in hplc

Alkem Labs, Aurobindo, Rakshit Drugs, SDLPL,

1 14226

What is the optimum period of storage of indicators?

Orchid Chemicals and Pharmaceuticals,

1 4282

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

Dr Reddys, Piramal Enterprises,

1 5253

How much carbon loading in nomalphase columns?

5 7568

Chromatographic Purity is a Qualitative analysis

Shasun Chemicals,

2 5283

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 2693

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?

2666

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

Caplin Point, Epione Labs, Hetero,

2 6803

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

Natco,

1 4328

What is the use of ELSD in HPLC?

Anthem,

3 6464

What is difference between FID and TCD in gas chromatography

Cipla, VPCPL,

1 10275

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

Cipla,

1 7178


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

If combination product how require to identify which imp is of which api?

789


in each media we require to use SLS? how to proceed?

722


HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

2187


if rsd failed then what require to do?

763


sop of a uv visible spectrophotometer double beam elico model

5862


please explain about aluminium hydroxide assay

1091


i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2670


what is turbidimetric titration?Give 2 examples.

2580


how to select short coloum and long coloumn for new molecule

2357


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

2072


In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

3427


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

7482


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

2175


what is the difference between potentiometric titration and karl fischer titration?

3113


how will you do the prep for unstable componds?

1973