Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why we use pyridine to determine moisture content of acetonel

Lee Pharma,

2 9029

What impact analysis required for out of calibration and how to proceed

Aventis,

2 5042

Which type of analysis we have to done uv spectroscopy

2 6815




From where 16 or 5.545 is derived in theoretical plates calculation formula by USP or JP/BP/DAB and what is meaning of this coefficient and impact in calculation ?

Nectar Lifesciences,

2 8070

What is the difference between uplc and hplc

Hetero, AAU Assam Agricultural University,

4 21591

What is meaning of audit trail in hplc

Lee Pharma, Raks Pharma, DRL,

3 19135

How we can determine OOT limit in Stability

MSN Pharma,

1 9839

why we are using k2cr207 in uv calibration ? why we r not using kmno4?

Glochem, Sidmak Laboratories,

1 3872




can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

Cipla, XYZ,

976

WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

Glochem,

1223

Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

918

what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

Perkin Elmer,

6237

What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

6090

What is the difference between Spectroscopy and spectrophotometry,What are the applications?

Cipla, Caplin Point,

4 7397

What is difference b/t uv detector and rid

5 6067


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Un-Answered Questions { Analytical Chemistry }

what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

2349


In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]

1568


What is the main difference between ODS1 and ODS2 Hplc column.

2049


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

6417


mahagenco syllabus for the post of chemist

4959






What is the Formula for coreletion coefficient in plhplc calibration

200


what is the disso medium for tropsiun chloride

969


why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

415


As per ICH related substances stability trend limit from initial to shelf life

1837


when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.

830


Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

918


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

1239


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

782


for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

3713


Why Ethanol is Used for Standardization of GC Head space?

2677