Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why we use pyridine to determine moisture content of acetonel

Lee Pharma,

2 9280

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

Aventis,

2 5157

Which type of analysis we have to done uv spectroscopy

2 6911




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 8222

What is the difference between uplc and hplc

Hetero, AAU Assam Agricultural University,

4 21847

What is meaning of audit trail in hplc

Raks Pharma, Lee Pharma, DRL,

3 19446

How we can determine OOT limit in Stability

MSN Pharma,

2 10130

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

Glochem, Sidmak Laboratories,

1 3991




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,

1012

WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

Glochem,

1248

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

950

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

Perkin Elmer,

6395

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?

6303

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

Cipla, Caplin Point,

4 7526

What is difference b/t uv detector and rid

5 6153


Post New Analytical Chemistry Questions






Un-Answered Questions { Analytical Chemistry }

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

1886


What is stray light in uv what are units for stray light

331


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

2239


how to select short coloum and long coloumn for new molecule

1115


What is Band broading effect explain

658






in dissolution why pool sample needed? in which type of drug pool sample need?

1908


Principle of single pan analytical balance

3807


Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

381


using gradient pressure in gas chromatography are not ?using gradient pressure why

2197


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?

1012


acceptance criteria for lod & loq by standard deviation of response and slope??

1268


How can we calculate offset value pH measurment

285


In Assy by potentio metry titration method how select MET U ,DET U, SET U,

256


Can we interpret accuracy from linearity in method validation?

836


What are modes of quantification in related substances

974