Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

which effect is mainly responsible for chromatographic separation when silica is the statinary phase at TLC? thanks in advance

1 1562

what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

668

why in GC calibration of linearity regression coefficient should not be less than 0.999

Jubilant, Acacia,

1 3209




why don't we call POH meter? As we all as PH meter

Aurobindo,

4 4473

Why we are having specification 100% above in case of assay as there is only 100% of compound?

MSN Pharma, Nectar Lifesciences,

2 3045

why we are taking 89ml concentrated HCL for preparing 1N HCL

3 5306

Calculate the water content in Di Sodium Tartrate (DST) based on molecular weight?

2 2888

What are the terms used during Melting Range Analysis ?

2 1821




As per USP u/vacuum means (how much vacuum should be applied)?

Mylan,

1 2938

what is difference between zero air gas and o2 gas

IPCA, Vasudha Pharma,

1 6072

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

962

which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

Hetero,

916

In which cases factor of KF Reaget got higher side

2 3582

what is the concept for adjustment of pH in HPLC buffer solution ? a. Common ion effect b. Counter ion effect and explain me, how we adapt this principles & what is the role of these principles in our method

Apex, Pentagon Labs,

1078

What is the difference between BD

1 765


Post New Analytical Chemistry Questions






Un-Answered Questions { Analytical Chemistry }

i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

1406


4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

1257


what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

668


can i use hplc detector to uplc and why?

925


IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

1208






What is stray light in uv what are units for stray light

221


What is the difference between known and unknown impurities?

239


using gradient pressure in gas chromatography are not ?using gradient pressure why

2105


How to do regeneration of Metacarb Pb plus column?

1249


pharma industries oriented

825


what are the standard methods for HPLC?

1483


WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

1140


what is procedure of actual procedure for registration of drug?

607


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?

1843


what is the disso medium for tropsiun chloride

883