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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

about analytical chemistry

Apotex,

2058

What is differences between normality and molarity.in which cases both are used?

GVK,

1 7740

in gas chromatography what is the difference between gas flow rate and average linear velocity ?

USV,

2652

what are the ideal conditions for coloumn storage

Claris Lifesciences, Srikem Laboratories,

3 7412

i want to know about headspace and interview question on headspace

Srikem Laboratories,

1 5606

class of solvent regarding Residual solvent e.g. Acetone his class

1 4221

why we multiply 1000 in the determination of kf factor ?

Stellence Pharm Science,

3 8875

why we measure PH of a solution in PH only why not POH ?

Stellence Pharm Science,

1 5110

In Dissolution Test why limit is define Q+5% what is the role of +5%.

3155

Through assay by hplc(anhydrous basis) product got 100.8% .How much the potency of that product.Moisture content is 1.7%,Sulfated ash is 0.02%,Total impurities are 0.3%

2 6463

Why pyrene is also use for calibration if detector

Cipla, Dr Reddys,

1 4845

what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

Sandoz,

2010

In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?

1 4873

How to fix the sample concentration in related substances development.

Novartis, Watson Pharmaceuticals,

3 16998

Who discovered X-ray

Huntsman Corporation,

2 5255


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

1004


In performance Check of GC Why Hexadecane Peak is Considered 

3104


in which situation require to change rs specification?

796


why we use a particular hplc column for a particular compound give reasons?please

2789


What is control room temperature and which guide line says?

1695


what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

942


in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

786


from where i get mortar pastle for glass bottle crush? it's required for testing of it?

2328


What is Band broading effect explain

1941


how to develop the icp ms method? Application of icp ms?

848


how to select short coloum and long coloumn for new molecule

2522


can i use hplc detector to uplc and why?

2347


please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1690


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1260


How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

3403