Review and cite PEAKS protocol, troubleshooting and other methodology information | Contact experts in PEAKS to get answers
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Questions related to PEAKS
The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...
03 March 2021 5,837 3 View
i have recorded raman spectra of strontium oxide thin film. the spectra were recorded in the range 400 to 4000 cm-1. i have reference to peaks upto 1000cm-1. but i couldn't find literature for...
26 February 2021 2,487 1 View
When I measured the cyclic voltammogram of palladium in the pbs solution, two reduction peaks appeared. This did not match the literature I saw. Why? And how can I find the possible reaction...
20 February 2021 2,477 3 View
I measure the wavelength of material in a spectrophotometer and it peaks at 275 and its absorbance is 100. I mix it with an adsorbent and it adsorbs the first material, but when I measure the...
16 February 2021 7,506 5 View
If the intensity of two peaks in the X-ray pattern is the same, which peak is used to calculate the crystalline size in the Scherer formula? and why?
26 January 2021 5,035 5 View
Is it possible to conclude that increasing the intensity of FT-IR peaks represents an increment of functional groups or interaction between functional groups? Any suggestion would be highly...
20 January 2021 7,674 3 View
I have a xrd pattern, in that i suspect that one of the peak may be due to SL, i want to understand how to confirm it or reject it
07 January 2021 5,527 3 View
I measured the size of nanobubbles using Malvern zetasizer ZS. Due to the unreliability of the average size (polydispersity index is high > 0.5 but < 0.1 is the acceptable value), I have to...
05 January 2021 1,733 3 View
When I use multimode fiber to guide the quantum dot ensemble photoluminescence signal to my Horiba FHR100 spectrometer. I always get a spectrum with periodic peaks as pic.jpg . It looks like the...
26 December 2020 6,486 1 View
Somewhere in papers, it is written as Mn 2p3/2 XPS spectra can be deconvoluted into four peaks at 640.83, 641.92, 642.97 and 644.56 eV assigned to Mn(II), Mn(III), Mn(IV), and the shakeup peak,...
24 December 2020 4,313 4 View
Dear All, I have prepared trimetallic PdAgNi nanoparticles supported on carbon in addition to their monometallic Pd/C and Ag/C counterparts. I am having some issues with the XRD pattern with the...
23 December 2020 7,976 3 View
if the percentage of doping Au into rGO is too small 1~10%, is it not enough to prevent restacking of r-GO in xrd results, rGO peak appeared at 22.2 and also the peaks of gold nanoparticles so...
21 December 2020 6,081 3 View
When characterized with XRD , my prepared sample show peaks which are broader(bottom) than crystalline peaks but unlike amorphous materials, have sharp top. Is there any limit of intensity or full...
15 December 2020 663 4 View
Hi, I'm working on cyclic voltammetry (CV) using a chemical. The result was hard to explain as the CV showed a broad oxidation peak and a sharp reduction peak. Additionally, those peaks were...
07 December 2020 8,806 2 View
I have some DMA curves of PC+ABS from different batches. The PC loss modulus peak is fairly consistent but one batch has a peak value 10degC lower than the rest. Another peaks at the normal value,...
06 December 2020 803 2 View
Hello, I am analyzing 37 component FAME mix using GC. I have got 37 peaks and 25 of them show expected order and height. However, others are not in the similar order with the reference for same...
22 November 2020 7,025 4 View
My high resolution rocking curve data of single crystal specimen gives multiple peaks in a single peak or multiple peaks spread over a few degrees contrary to the observation of single sharp peak...
16 November 2020 6,688 4 View
Want to know the method for the seperation of GC peak btw MMA and dioxane which are showing the same B.P. like 101oC
15 November 2020 685 3 View
I am working with a 7820A GC and 5977B MS. Recently, we changed the helium tank and since then we have been seeing baseline noise in the chromatogram which is high enough to interfere with my...
11 November 2020 6,514 2 View
Hi, I am using the Masshunter software to quantify my GC-MS data. So, did the integration using MassHunter. but the data (area) are weird. I have a lot of peaks in one chromatogram, therefore,...
09 November 2020 2,172 5 View
i am confused if sample should be prepared in mobile phase as used in HPLC Will the different solvent for sample and mobile phase being different affect peaks or any component of anlysis ?
03 November 2020 1,649 2 View
I get a mutation by CRISPR, but when I do the sequencing I always get the results with poly peaks. How can I know the type of my mutation? The poly peaks always present from my target, and shows 3...
13 October 2020 7,022 4 View
Hi, I would like to know if the "I%" parameter indicates any match percentage or something like that? This doubt arose because after an analysis, a magnetite sample showed a slight color change,...
07 October 2020 9,705 3 View
The authors use cyclic voltammetry and amperometry to determine H2O2. However, these electrochemical techniques are not suitable, as they were used for quantification. The amperometry in a static...
06 October 2020 7,282 2 View