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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how to calibrate hplc & gc

Cipla,

4562

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

Vimta Labs,

1 6769

WHAT IS DIFFERENCE BETWEEN RRT AND RRF IN HPLC

Cadila,

2 50620

what is mean by Q in S1 and S2

Micro Labs,

3 11061

what is the difference between mcg and ppm?

5 31739

WHAT IS THE DIFFERENT BETWEEN PURITY, POTENCY AND ASSAY

Glochem, Hetero,

6 59435

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

1 7600

principle of FTIR

Biocon, Macleods,

2 19073

what is separation techniques.

Glenmark,

1 3800

what is the difference b/w repeatability nd reproducibility ?

Aptuit Laurus,

1 10281

why using factor 1.00639 in burette calibration of kf

Cipla,

1 8629

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

Sun Pharma,

1 12758

Why KBr is used in FTIR ?

6 15903

How to study genotoxicity of impurities in API?

NCL,

2 6492

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

Aptuit Laurus,

3 12080


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

how to set sample and standard concentration in RS method?

968


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

4620


What is similarity factor?

1264


how you start RS method development when for new product?

780


if you have given a blank water how you analyse by general analytical techniques?

2086


WHY pKa value is more important than pH value of the mobile phase in HPLC?

1813


In which situation we require to prepare the standard solution from sample in Related substance method?

826


How require to perform linearity as per ANVISA? What are the acceptance criteria?

1401


How to choose the which salt is suitable for mobilephase

3304


mode of absorption in alimentary canal?

2436


Why are use silicon oil mr?

1261


what is mean by dissolution hydrodynamics?

889


2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2267


which are the sizes of capsules?

1049


What is aggregate and fragments in SEC?

2159