Silicic acid has been shown to cause flocculation in a concentrated malt extract. Is there any similiar experience in this topic?
actually not.
The starting material is a finely ground powder. Some particles contain more graphene than others.
30 July 2024 3,978 2 View
I complexed my sample with DNA and obtained an image. However, the image shows some migration above the actual gel height (shown by arrow). Does anyone have an of what could be the reason for this...
02 November 2023 6,251 3 View
I did a reaction, basically it is the thiol-Michael Addition where I tried to conjugate a -SH group to the double bound of an acrylate group. The reaction was aided with TCEP/TEA as catalyst....
31 August 2023 7,709 4 View
I am doing panel ARDL on STATA and want to run a Hausman Test (command xtpmg) to determine which estimator is most appropriate (MG, PMG or DFE). I first tried PMG vs MG and the result shows...
09 May 2023 8,902 0 View
I have tested IPS unit root for my regression variables. However, one of my variables are still non-stationary after first difference, but stationary at second difference. May I know what are...
04 May 2023 977 2 View
Hello, I want to do a panel data analysis. However, I figured that my dependent variables across entities each have different trend (constant, increasing, decreasing). I would like to first do...
01 May 2023 3,280 2 View
Hello to the community, We are planning to purchase a Maldi-ToF system to expand our MS capabilities. I have noticed the Spiral-ToF from JEOL. However, the device is probably a niche product at...
16 March 2023 5,936 2 View
We are working with ants as biological control agents against cabbage butterflies. In connection with this, we would like to start a culture of both large and small whites (Pieris rapae and Pieris...
14 November 2022 2,079 0 View
WE use ZO-1 - but see weak signal with hbec51 cells
07 February 2022 2,454 2 View
P1: Ontology + Data = Knowledge Graph (KG) P2: If a KG is the sum of these two summands, it follows: C: An ontology is a framework for a KG As a framework, an Ontology consists of person data,...
12 December 2021 941 3 View
I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...
08 August 2024 8,329 0 View
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 View
Palmitic acid presence in aqueous fraction
05 August 2024 8,624 4 View
I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?
02 August 2024 7,186 6 View
I am currently working on a project involving liposomes and need to determine the maximum volume of siRNA that can be added to a 2.5 mL liposome solution with a total lipid concentration of 10...
30 July 2024 6,420 1 View
Dear Siesta Users, I installed Siesta 5.0.1 and I want to use Grimme's D3 correction. According to the 5.0.1 manual, I could use a few parameters to include the D3 correction in the...
27 July 2024 5,748 0 View
It has been long known that EDC carbodiimide and NHS easter's half life agains hydrolysis are highly related to pH. However, very surprisingly, not yet found a paper giving a table/chart of their...
25 July 2024 8,738 0 View
I run mechanochemical reactions that involves the use of a large amount of catalyst (1:1 molar ratio to the reactant). When I try to understand the effect of amount of catalyst on the reaction, I...
23 July 2024 9,938 1 View
I would like to know the role of the TFA (trifluoroacetic acid) used on reverse phase chromatography c-18 column. It's is often used with a concentration of 0.1% on the mobile phase.
23 July 2024 8,075 3 View
Hi, I am a PhD student working at Jagiellonian University, Faculty of Chemistry. My work is related to the development of new analytical methods for the quantification of short-chain fatty acids...
22 July 2024 5,492 6 View