Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

about analytical chemistry

Apotex,

1516

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

GVK,

1 6514

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

USV,

1923

what are the ideal conditions for coloumn storage

Claris Lifesciences, Srikem Laboratories,

3 5978

i want to know about headspace and interview question on headspace

Srikem Laboratories,

1 4748

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

1 3415

why we multiply 1000 in the determination of kf factor ?

Stellence Pharm Science,

3 7255

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

Stellence Pharm Science,

1 4005

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

2554

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 5420

Why pyrene is also use for calibration if detector

Cipla, Dr Reddys,

1 3890

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

Sandoz,

1480

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

1 3996

How to fix the sample concentration in related substances development.

Novartis, Watson Pharmaceuticals,

3 15006

Who discovered X-ray

Huntsman Corporation,

2 4196


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Un-Answered Questions { Analytical Chemistry }

what is mean by nitrosamine impurities?

526


What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1131


How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2003


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2332


What is the Formula for coreletion coefficient in plhplc calibration

1230






Why dissolution test is not performed in all of the products

2018


before starting analytical method valodation what you checking? and how giving preference to start validation?

329


In which situation we require to prepare the standard solution from sample in Related substance method?

275


From where require to take the RLD sample?

266


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

688


Qc interview questions

1242


Tell me about analytical method validation in QC

5524


what is mean by dissolution hydrodynamics?

333


Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

1151


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

2581