Apoorva Mittal

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Questions related from Apoorva Mittal

In colorimetric analysis, can we compare absorbance measurement from spectrometer and optical density measurements from image analysis using scanner?

There are two most popular methods for colorimetric analysis i.e. spectrometer data and image analysis using a scanner. For example, in order to study the color intensity of films, I have measured...

02 June 2020 5,011 1 View

Can we expect a reduction in the population of particles in SEM images in the form of particles and after making their films?

I took scanning electron microscope images of my samples in powder form and after coating their films. In powder form, a large number of particles can be seen however, in the films only a few...

22 July 2019 8,553 3 View

Why is it difficult to perform acid amine coupling using EDC, DMAP and HOBt?

I had been trying acid amine coupling of a long carbon chain carboxylic acid with urea, I couldn't get the desired product by using EDC, DMAP and HOBt. TLC shows 2 spots, I had been isolating the...

24 November 2018 8,614 3 View

Which solvent is suitable for analysing the UV Vis spectra of a polydiacetylene compound?

I want to study UV Vis spectra of a polydiacetylene based compound. It is a polymer and is not soluble in most of the solvents. i tried dissolving it in ethanol, butanol, chloroform, DCM, THF, DMS...

26 October 2017 6,683 3 View

What makes some of the diacetylene compounds highly UV sensitive?

There are some diacetylenes which undergo polymerization reaction upon exposure to UV radiation. What property of the material is responsible for their UV sensitivity?

17 June 2017 9,817 3 View