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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is diffrence between Specific optical rotation, optical rotation?

3 10269

Why only lead standard solution is uesd to perform heavy metal test.

Reddy Labs,

2 4491

What is the lab normality??

DRL, Tagros,

3 8846

what is the d/f b/w normality and molarity and molality..?

1 7951

What is column dead volume?

Astron Research,

4 10224

what is the conductivity of hplc grade water?

4 13674

what is SOP?How can prepare?

Reddy Labs,

1 5768

What is Impuriteis?

Zydus Cadila,

4 10270

What is Log p?

Laurus,

1 3205

what is turbidimetric titration?Give 2 examples.

Laurus,

1515

What are the tests used in Hplc?Name any two.

Laurus,

4 6980

The colour presence in kmno4 is due to.

Laurus,

1 8420

what is the difference between isocratic & elution technique?

Laurus,

3 9818

key components in hplc?

Laurus,

3 8493

key components in gas chromotagraphy.

Laurus,

1 5870


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Un-Answered Questions { Analytical Chemistry }

What is rs test why we are performing rs test?

394


which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

1334


Tell me about analytical method validation in QC

3563


mahagenco syllabus for the post of chemist

5290


How to choose the which salt is suitable for mobilephase

2158






How can I develope method of dissolution by HPLC OR UV

1462


Why are use silicon oil mr?

253


I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

2491


What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

774


WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

1537


how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.

1468


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

2280


iam usig ph buffers merk. manually how to prepare ?

1320


What is control room temperature and which guide line says?

761


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

1664