Irum Asif

4 Questions 7 Answers 0 Followers

Questions related from Irum Asif

What are the possible reasons for appearance of shoulder peak and slight shift in peak in HPLC for the catalytic reduction study of p-nitrophenols?

During catalytic reduction study of p-nitrophenol by newly synthesized hybrids, the characteristic sharp peak of PNP (in reference) is split into two peaks after reduction. Is it an indication of...

27 December 2022 3,682 6 View

Is there any method to analyze low concentration solutions on HPLC, by standard addition method?

I have studied the removal of azo dyes by the polymer based hybrids, using UV Visible spectroscopy. I want to analyze the same samples (1 ppm) on HPLC. But the concentration must be high (10 - 50...

13 April 2021 6,670 5 View

For the purification of Acrylic Acid (Stabilized with hydroquinone monomethyl ether), what are other methods used than vaccuum distillation?

I have searched for many methods, and it seems a common practice to remove the stabilizer from monomer before further use in polymerization in common polymer labs. Kindly suggest some other...

14 October 2020 7,919 4 View

How can we determine the nature of ionic liquid (2-Ethyl-1-methylimidazolium methyl sulfate) by using simple titration method?

What is the method to determine the nature (acidic / basic) of ionic liquids (2-Ethyl-1-methylimidazolium methyl sulfate) by using simple classical method of titration? It is required to study...

23 January 2020 3,654 2 View