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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is dwell volume in HPLC?

Aurobindo, Cadila, Strides, SUN, Sun Pharma,

2 5634

what does pH stand for?

Orchid,

4 5804

Definition of beers_ lamberts law

Aarti Industries, Agio Pharmaceuticals, Emcure, Supriya Lifescience,

4 5474

Why monograph of hplc coming upperside of drift but in IR monograph coming in drift side?

1 2774

Why a1% value is used for some product ? What is the criteria for selection a1% value ?

Zim Laboratories,

1535

Why the ph limit (1_14) Is used?

Cipla,

3 6075

What is cut off value of solvent used in hplc

Pfizer,

1 4938

How to calculate mass balance in RS after degradation

Reddy Labs,

1 4206

if out of two set of results of moisture analysis first 1 is passing, second one is failing, is it oos ? or vice a versa first 1 is failing and second one is passing. for information mean value to be reported and in mean value the substance is ppassing, is it oos or normaal mean value to be considered?

JBCPL,

1 2417

Can we interpret accuracy from linearity in method validation?

Dr Reddys, Lupin,

1 1519

What is aggregate and fragments in SEC?

1284

how pyridine can be analysed other than GC?

1 2863

What is the calibration of uv process and preparation

Aurobindo,

1242

How to prepare 1000ppm methylene blue solution

2 11720

Identify problem faced when mass spectroscopy is used with HPLC system ?

College School Exams Tests,

1192


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Un-Answered Questions { Analytical Chemistry }

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

1


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.

1697


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

6369


Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

1


Principle of single pan analytical balance

4306






Identify problem faced when mass spectroscopy is used with HPLC system ?

1192


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?

3166


What is dose dumping? why require to do?

2


How doing qbd practically?

1


How would you decide dissolution medium for NCE compound of class I drug

1323


Which are the diffrent grades of api in pharma?

1


What is the calibration of uv process and preparation

1242


in which situation ion pair agent require to use?

1


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

1


why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

1989