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
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...
27 December 2020 6,865 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,...
25 December 2020 4,844 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...
24 December 2020 8,458 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...
22 December 2020 6,732 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...
16 December 2020 1,386 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...
08 December 2020 9,325 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,...
07 December 2020 1,339 2 View
Hi everyone, I am doing a quality control for NGS libraries using bioanalzyer 2100 from Agilent. The machine worked for me for almost two years without any problem, with regular cleaning and...
30 November 2020 1,276 0 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...
23 November 2020 7,468 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...
17 November 2020 7,128 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
16 November 2020 1,185 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...
12 November 2020 7,077 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,...
10 November 2020 2,691 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 ?
04 November 2020 2,143 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...
14 October 2020 7,386 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,...
08 October 2020 10,158 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...
07 October 2020 7,699 2 View
Do you know how to interpret the data from LC - MS/MS analysis? I have peaks with me and need to know how to identify unknown compounds.
06 October 2020 3,358 7 View
Hi there, after obtaining LiFePO4 by different routes, I always get the same DRX peaks. They match with the ones of reported Pnma LiFePO4, but the only difference observed is a peak over 30º,...
06 October 2020 9,442 3 View
Hello, Recently I used the Positive Up Negative Down technique to calculate the polarization of PZT. After the experiment, I observed two unwanted current response peak which appears right before...
05 October 2020 7,106 3 View
We have a Quininone reference standard and with RP chromatography the standard gives two peaks, why it gives two peaks?
05 October 2020 2,880 1 View
Most of my microsatellite markers are dinucleotides, therefore they show stuttering. In regular stuttering is easy to identify the allele, which is the highest peak on the right, after the shorter...
27 September 2020 1,904 5 View
Hi, I want to know how to find the %crystallinity from PXRD peaks. I have a highly amorphous compound where I get a broad peak. For your reference my PXRD looks same as in the following picture.
27 September 2020 6,754 5 View
for 1% Mn doped BaTiO3, c/a =0.9955 for 2%, c/a=0.9845 for 3%, c/a=0.9913 Major peaks of all XRD shifts to right with increasing doping concentration.
24 September 2020 7,462 3 View