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Questions related from Apoorva Mittal
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 5,112 1 View
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 8,643 3 View
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 8,672 3 View
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 6,750 3 View
Is it true that the compounds which are UV sensitive should be sensitive to x-rays or gamma rays as well because the energy of x-rays or gamma rays is much higher than ultraviolet rays? If it is...
01 August 2017 5,017 12 View
The sample is not amorphous, it is crystalline. The literature reports distinct peaks. But in my sample, I am not getting a single peak. What can be the possible reason for this?
08 July 2017 3,376 14 View
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 9,896 3 View
I want to dry off the solvent from the sample by vacuum drying. Can I use tube furnace with no temperature setting only for vacuum drying?
13 April 2017 5,602 4 View
Some polydiacetylenes are extremely light sensitive and change color on exposure to light (room light, UV). What is the best possible way to handle them so that the rapid change in their color can...
17 March 2017 2,698 0 View
I want to analyse CT images in my personal computer. I have the images in CD.
04 October 2016 340 6 View
In the literature it is said that the grainless nature of radiochromic films is responsible for their high resolution. What exactly does this mean?
27 September 2016 4,482 4 View
Is there any mathematical relation between the absorbed dose in a RCF and its area, thickness and mass? Are there any other factors as well which affect the amount of dose absorbed?
27 September 2016 7,464 3 View