Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why we use pyridine to determine moisture content of acetonel

Lee Pharma,

2 10148

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

Aventis,

2 5625

Which type of analysis we have to done uv spectroscopy

2 7398




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 8862

What is the difference between uplc and hplc

Hetero, AAU Assam Agricultural University,

4 22815

What is meaning of audit trail in hplc

Raks Pharma, Lee Pharma, DRL,

3 20657

How we can determine OOT limit in Stability

MSN Pharma,

2 11253

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

Glochem, Sidmak Laboratories,

1 4507




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,

1183

WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

Glochem,

1382

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

1171

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

Perkin Elmer,

6994

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?

7126

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

Cipla, Caplin Point,

4 8185

What is difference b/t uv detector and rid

5 6720


Post New Analytical Chemistry Questions






Un-Answered Questions { Analytical Chemistry }

process of Diclofenac sodium,IP.

1103


How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

1238


What is similarity factor?

86


Difference between hlaf and rlaf

948


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.

945






why we should take dst factor for below 1%moisture samples

1622


For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

2803


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

929


How to choose the which salt is suitable for mobilephase

1958


How to fix the sample conc. in Related substances test by HPLC?

24


why equlirium conatant of water have 14 value

1145


in sampling of raw material which side is pasted sampled labels

476


A ha tc is actual defination of retention time?

439


How we choose the mobile phase for method development.?

85


why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

7460