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Questions related to PEAKS
Ideally peaks should be separated and having a somewhat symmetric pattern but could any one give me a help with reading H NMR with multiple peaks totally mixed up which could not be attributed any...
23 September 2020 3,964 3 View
My sample was the copper paste contained PEG, and there were no endothermic peaks or exothermal peaks, so I was wondering why did the heat flow in the 2nd and the 3rd cycle decrease? Thanks!
01 September 2020 7,492 3 View
Hi, i am working on solution combustion synthesis of Y3Al5O12 powders with different oxidizer to fuel ratio. I would like to know if higher weight loss signifies lower combustion temperature? And...
26 August 2020 1,167 3 View
I run full scan for Dimethomorph (a fungicide) in GC-MS/MS, and it gives two peaks with different retention times 11.1 and 11.3. I increased temperature from 280 to 320°C and peaks little bit come...
20 August 2020 4,057 3 View
In visible reflectance spectroscopy performed on a bovine tendon, peaks were observed corresponding to tendon amides. But I do not know these peaks are related to what kind of amides.
17 August 2020 4,718 3 View
Does the Raman peaks of carbon nanotubes under strong ultrasonic waves with a duration of more than an hour shift to higher or lower wavelengths and why? Can very low amounts of these sonicated...
13 August 2020 8,576 5 View
A casting plant with three identical aging furnaces is operating 24/7 using certain energy consumption and peak demand with data logging logging on 10 minute interval. I am trying to study whether...
04 August 2020 8,351 3 View
2D Mos2 shows three distinct absorption peaks which are related to A, B, C excitons and are almost fixed for different flakes of different sizes of small variations. According to theory, when the...
03 August 2020 3,580 7 View
Trapping parameters of the different deconvoluted peaks of the γ rays irradiated glow curves.
29 July 2020 2,697 2 View
Hello. I synthesized nickel iron selenide and measured XPS for analysis. I found something strange while I was analyzing the data. We don't know the cause, but compared to the previously reported...
27 July 2020 6,905 5 View
Dear scientific society, In my XPS results of Ru-zeolite catalyst, there's no carbon however in the spent catalyst there is a chance of carbon deposition. I spent catalyst XPS, Ru 3d3/2 at 284.6...
25 July 2020 4,765 4 View
I am trying to obtain Ru 3d XPS spectra of samples with RuO2 content of 0.1 ~ 0.3%. But due to the overlapping of the C 1s region and maybe the low content as well, the Ru 3d5/2 peak was almost...
23 July 2020 8,066 4 View
Hello, We have synthesized the cyclic peptide (D-Glu(OtBu)-L-Lys(Alloc)-D-Glu(OtBu)-L-Ala)2. LC-MS shows a mixture of linear and cyclic peptides. There is only one peak by HPLC (reverse phase,...
22 July 2020 2,562 1 View
The fluid in liquid phase is injected through inlet, due to given boundary condition the liquid phase fluid vaporizes in the ventilation( has both liquid and vapours) and the fluid exits through...
21 July 2020 7,411 0 View
I have done solid-state proton NMR. General solid-state proton NMR shows broad peaks. But, I find a negative value peak. In the case of solid-state, there should not use any reference (as...
14 July 2020 6,390 1 View
FTIR peaks are related to bond vibrations. In that context, what does the variation in the peak width after doping signify? Is it because of the variation in bond length or any kind of microstrain...
14 July 2020 6,389 1 View
I have simulated a circularly polarized truncated corner patch antenna in HFSS, but the gain does not peak at theta=0 as it should. It peaks around theta=10deg. How can I fix this?
10 July 2020 3,736 8 View
D and G band in CARBON DOTS observed at 1304 and 1441 cm-1 unlike 1348 and 1581cm-1. Can someone help me in knowing the reason behind this shift. I am attaching recorded raman spectra of carbon...
06 July 2020 8,433 0 View
Hello, I recently stumbled upon a voltammogram of HQ/Q in 0.1M NaCl on glassy carbon electrode. I was surprised to see two pairs of peaks present on the graph. As far as I know it is a two...
30 June 2020 2,127 2 View
We are currently running ASTM D7419 on 2 x Agilent ZORBAX SIL 9.4 x 250 mm, 5 μm, Part number: 880952-201 1 x Agilent ZORBAX CN 9.4 x 250 mm, 5 μm, B12246 and with every run we are seeing the...
30 June 2020 6,704 0 View
COVID-19 took its devastating form in Europe and USA since the last week March. Then after the April, EU countries could manage the spread but USA could not and already exposed with several peaks....
24 June 2020 7,553 15 View
I am working with Fluorescence spectrophotometer (Model:F-2700 FL) to determine concentration of chlorophyll a and carotenoids in cyanobacteria. I set up the excitation and emission wavelength...
20 June 2020 5,848 0 View
I am working with Fluorescence spectrophotometer (Model:F-2700 FL) to determine concentration of chlorophyll a and carotenoids in cyanobacteria. I set up the excitation and emission wavelength of...
19 June 2020 2,395 0 View
Dear all, I am preparing for a simulation that involves a shell of oblique geometry (they are almost like a twisted wing shape with a shell and core). I'm wondering what would be the best way to...
10 June 2020 1,548 0 View