I am trying to make an 8-10M urea stock in ~200 mg/ml of PEG 20000 crowding agent while attempting to do so I am unable to dissolve the urea in premade PEG stock or vice versa. Can someone please help me with this?
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...
09 August 2024 9,621 0 View
Pig slurry is rich in major and minor nutrients. Is there any way to improve / Enrich its manure quality to be used in agriculture organically ? please share your knowledge.
09 August 2024 5,605 2 View
Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...
07 August 2024 269 3 View
I am not able to get good literature and the physics behind how first these grains and grain boundaries arises out of no where when we make a pellet to study its dielectric properties and then how...
07 August 2024 5,177 3 View
Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...
07 August 2024 3,218 4 View
Hi How can this equation Ln(LA) = 1.038 + 0.89 ln(X) be applied to calculate the leaf area of a tomato? Can you explain with an example and what is the substitution of Ln and ln?
06 August 2024 2,508 2 View
I aim to be as skeptical as possible regarding whether a pair of orthologous genes results in the same phenotype in their different but related bacterial organisms under similar environmental...
05 August 2024 6,787 4 View
I ran a SDS-page of a bacterial lysate and I want to quantify protein concentration in a specific band. I was thinking of using a standards ladder or make some standards are different...
05 August 2024 9,805 3 View
XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds
04 August 2024 3,019 3 View
I want to remove Urea from my protein (6kDa) sample. I did use : 1. Step down the Urea gradient (dialysis) in order to remove urea and refold my protein, but my protein still contains urea in the...
06 August 2024 1,350 4 View
For example, if low-density polyethylene (LDPE) is equilibrated with PCB contaminated marine and freshwater sediments, can LDPE-lipid partition coefficients be used to obtain equilibrium...
28 July 2024 263 1 View
Accredited laboratory of JV "Uz-Kor Gas Chemical" LLC (Uzbekistan) is looking for providers to conduct interlaboratory comparison tests on gas chromatographic analysis of hydrocarbons (component...
25 July 2024 8,108 0 View
Hi everyone, Can someone explain for me a method to inject VOC collected with Tedlar bag from pyrolysis process and transfer or inject into GCMS. Thanks
22 July 2024 6,398 1 View
I have a mixture of glycol, water, MDEA, and piperazine. I want to analyze it with GC-FID.
15 July 2024 9,652 3 View
I have a mixture of glycol, water, MDEA, and piperazine which I want to analyze with GC.
15 July 2024 2,181 10 View
I have a 0.25mM thick gel and I am having trouble cleaning out the wells to ensure constant sample application. I usually use a thin syringe to get into the wells and rinse them out with running...
01 July 2024 2,124 2 View
Some scientists use nano nitrogen and some use nano urea, even though the process used the same for preparation. So, which is true nano nitrogen or nano urea?
28 June 2024 2,885 6 View
When polyethylene, whether high-density or low-density, is mixed with percentages of waste tire rubber, it becomes a new material. Where can it be used?
26 June 2024 3,349 2 View
Fertilizers play a crucial role in enhancing the productivity of plants. However, low nutrient use efficiencies of conventional fertilizers (CFs) associated with several losses have led to...
21 June 2024 8,843 3 View