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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 7936

what does pH stand for?

Orchid,

4 8495

Definition of beers_ lamberts law

Aarti Industries, Agio Pharmaceuticals, Emcure, Supriya Lifescience,

4 8368

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

1 4189

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

Zim Laboratories,

2346

Why the ph limit (1_14) Is used?

Cipla,

3 8374

What is cut off value of solvent used in hplc

Pfizer,

1 6600

How to calculate mass balance in RS after degradation

Reddy Labs,

1 6100

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 3683

Can we interpret accuracy from linearity in method validation?

Dr Reddys, Lupin,

1 3039

What is aggregate and fragments in SEC?

2114

how pyridine can be analysed other than GC?

1 4325

What is the calibration of uv process and preparation

Aurobindo,

1998

How to prepare 1000ppm methylene blue solution

2 21323

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

College School Exams Tests,

1870


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

in which situation require to take incident in validation?

1727


could negative ions be produced by bombardment process in mass spectrometry?

1781


inhouse product is in capsule form in combination and RLD is in tablet form then can we proceed for multimedia CDP? in inhouse capsule product disso is paddle with sinker in release media is there then RLD product in tablet form then with same as paddle with sinker we can proceed n.a.?

715


what are the guidelines for analytical method validations?

1102


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

812


why we are using benzene, anyline in acetic anhdride assay titration method?

2115


what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3669


What is Band broading effect explain

1880


If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

988


In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3178


How can I develope method of dissolution by HPLC OR UV

2408


Difference between the quantitative analysis and qualitative analysis?

1180


WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

1187


what is classification of elemental impurities? what is risk assement in elemental impurities?

760


how require to fix the linearity and accuracy cincentration range?

1671