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Chemistry Interview Questions
Questions Answers Views Company eMail

What is electrode potential? : Electrochemistry Corrosion

1089

What are the applications of electrochemical cell? : Electrochemistry Corrosion

1116

How to do spike of aflatoxin in peanut to get maximum recovery

1077

What is stepping ripple and step accuracy

1130

How to fix the sample conc. in Related substances test by HPLC?

1050

What is the limit for single maximum impurity limit as per USP??

1 1948

Why we use potassium dichromate in uv calibration Exact reason behind it??

1213

UV and PDA detector, which have less signal to noise ratio?

1103

Difference between the quantitative analysis and qualitative analysis?

1127

HPLC in sequences analysis was taken wrong method and one blank & Standard is running so what to do

1208

What is related substance by HPLC impurity limits as per USP?

1060

What is a difference between potency and purity?

1177

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

882

In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

885

in hplc chromatogram started from left to right and in uv spectrum started from left to right

908


Un-Answered Questions { Chemistry }

Explain the process of obtaining Protactinium from its primary sources and its purification methods.

620


Define hydra?

1037


FDA MHRA

2571


write short note on steroids,terpenes,prostagladins,and phospholipids.

6332


What is the prime constituents of cement?

1205


in which situation require to use paddle and basket?

698


Do all explosions produce carbon dioxide or carbon monoxide?

1071


what is the structure of DOWEX-50

5478


Why are olefins (alkenes) good monomers for polymerization reactions? : Polymer Chemistry

1358


What can be the supporter of combustion except oxygen.

2777


What is rs test why we are performing rs test?

1823


we can use expired sample for validation and analyst qualification?

774


How to caluclate %w/v& %w/w ple give examples solids&liquids 10%NAOH W/W 10%W/V- 20%HCL W/W &W/V

2467


what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4449


[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

725