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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 3149

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

1 2771

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

Claris Lifesciences,

5 9776

How to caluculate the RRF and correction factor in hplc

Alkem Labs, Aurobindo, Rakshit Drugs, SDLPL,

1 14266

What is the optimum period of storage of indicators?

Orchid Chemicals and Pharmaceuticals,

1 4309

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

Dr Reddys, Piramal Enterprises,

1 5284

How much carbon loading in nomalphase columns?

5 7635

Chromatographic Purity is a Qualitative analysis

Shasun Chemicals,

2 5321

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 2731

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?

2675

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

Caplin Point, Epione Labs, Hetero,

2 6843

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

Natco,

1 4359

What is the use of ELSD in HPLC?

Anthem,

3 6507

What is difference between FID and TCD in gas chromatography

Cipla, VPCPL,

1 10319

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

Cipla,

1 7201


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2572


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

2499


all types of questions asked at the cipla interview

4646


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2802


We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1848


EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2589


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

772


Which is the highly polar and highly non polar column in HPLC?

2255


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

2259


how to calculate elemental impurities?

999


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

825


before starting analytical method valodation what you checking? and how giving preference to start validation?

759


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

2685


Difference between the quantitative analysis and qualitative analysis?

1119


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

658