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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

i set electrode to 7 buffer than i used it to check 4 buffer and 10 buffer if the results are not as expected than is it better to set the buffer again to 4 buffer or is there any other method available please let me know ...

Glochem,

2 7142

How much is the standard area for glc analysis

2287

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

DRL,

2670

what type of compounds do we see lod @ wat type compounds do we see m.c

Orchid,

3 9498

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

Ajanta,

1 7597

How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

Cipla, Rampex Labs,

4269

What the difference in loss on drying and residue on ignition

2 35166

Why irmoisture balance is used for corrugated box moisture testing

Leiutis, Lupin,

2404

why we are used 4,7,9,2 buffers for the ph calibration

Aurobindo, Enaltec Labs,

4 19621

In case of HPLC coloums what is the difference Between C8 & C18 coloums & how can we select difference type of coloums like Inertial ODS , Hypersil BDS , ODS etc.?

MSN Pharma,

4 33425

Is sonication essential in solubility testing of a drug substance?

Aurobindo,

6 16711

what is different between volumetric solution and general solution

1 18857

what is primary solution and secondary solution

2 8425

what is RI detector Cut-off Value

Mylan,

1 10006

In Related Substances Test how we can reside the limit of impurity ?

MSN Pharma,

2 11395


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

WHY pKa value is more important than pH value of the mobile phase in HPLC?

1769


what is diffrence between specificity and selecivity?

782


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

760


why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

2268


how you establish the LOQ?

795


function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2670


Difference between the quantitative analysis and qualitative analysis?

1180


How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

3244


how you start the solubility study?

828


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1211


WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2132


in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

754


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

2172


what is %labelled amount in content uniformity of dosage unit and its calculation?

5237


What is importance of pH in the Heavy metal test and How it effect on the test results?

2284