Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how to calibrate hplc & gc

Cipla,

4019

Explain in detail what are the procedure and calculations involved for accuracy (%Recovery)in method validation?

Vimta Labs,

1 5910

WHAT IS DIFFERENCE BETWEEN RRT AND RRF IN HPLC

Cadila,

2 48914

what is mean by Q in S1 and S2

Micro Labs,

3 9603

what is the difference between mcg and ppm?

5 28859

WHAT IS THE DIFFERENT BETWEEN PURITY, POTENCY AND ASSAY

Glochem, Hetero,

6 55563

How we can perform Linearity study for validation by HPLC with very low conc of sample

1 6772

principle of FTIR

Biocon, Macleods,

2 17344

what is separation techniques.

Glenmark,

1 2814

what is the difference b/w repeatability nd reproducibility ?

Aptuit Laurus,

1 9243

why using factor 1.00639 in burette calibration of kf

Cipla,

1 7746

what type of questions asked on analytical balance and also give answers................all pharma companies?

Sun Pharma,

11696

Why KBr is used in FTIR ?

6 13842

How to study genotoxicity of impurities in API?

NCL,

2 5055

What is the difference between chiral cel OD-H & OD-RH ?

Aptuit Laurus,

3 10156


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Un-Answered Questions { Analytical Chemistry }

What is a difference between potency and purity?

627


in hplc chromatogram started from left to right and in uv spectrum started from left to right

457


how require to set assay concentration for standard and sample?

351


how to get accurate result for Residue on evaporation in purified water

1107


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3096






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?

517


what is mean by nitrosamine impurities?

531


IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

1972


Why potassium dichromate is used in calibration of uv?

1373


if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

269


why we use a particular hplc column for a particular compound give reasons?please

2263


WHAT IS THE USE OF STARTER ?????????

1893


What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1749


How to establish relative response factor for hplc. Why it is required?

686


4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2146