Chemistry Interview Questions
Questions Answers Views Company eMail

Difference between c18

Apothecon, Dr Reddys, Intas, IPQA, SUN, Torrent Pharma,

6 50651

principle of UV , PDA , RI detector in HPLC

Dr Reddys,

8236

mahagenco syllabus for the post of chemist

MahaGenco, Unimarck Pharma,

5744

What is post run in hplc?

Cipla,

1 15857

Tell me something about Vitamin A test method by HPLC

Lupin,

2209

what is induction on electrical insulators

1852

How to choose Normal phase or Reverse Phase HPLC method Conditions for given sample?

PharmaZell,

3 13460

why the most API molecule are in the hydrochloride form?

1 8844

IF HPLC CALIBRATION FAILED THEN WHAT YOU DO

6 34437

Optical Rotation*0.9477*100*200] Assay Of dextrose= ________________________________ 99.8* 200 why Factor=0.9477

Claris Lifesciences, Inven Pharmaceuticals, Levo,

1 14340

what is column chromotography?

ONGC,

2 6665

How you will select the runtime in HPLC for a drug in method development.

Aurobindo, GVK, Lesanto Laboratories,

6 19959

If compound Pka is 5 then which buffer you will select ?

Avra, GVK,

5 15084

what is the difference between BDS and ODS Columens and both are same or not

Intas, IPQA, Micro Labs, Vasava Engineering Private Limited,

2 71820

difference between HPLC & LC-MS

Lambda,

9 43836


Un-Answered Questions { Chemistry }

what is mean by nitrosamine impurities?

542


What is the main difference between ODS1 and ODS2 Hplc column.

4475


what you do when compound having dwel wavelength?

282


How are atoms of the isotopes different from one another? Two isotopes of carbon are carbon-12 and carbon-14.

550


Which are the diffrent grades of api in pharma?

313






What is the unit of ph?

612


what is NIR wave length

941


Explain the process of protactinium-uranium fractionation and its implications for understanding geological and geochemical processes.

170


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?

3493


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3107


can you pls provide chemistry previous papers for the post of trainee chemist in ap genco

2156


Why is glass electrode called an ion selective electrode?

553


what is the purpose of using cyclhexane in synthesis?

3516


How to convert 673 kelvin into degrees centigrade?

566


[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

351