How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

How to make Fast Green FCF from powder?

Hi everyone We need Fast Green to electroporate plasmid into mice embryos, therefore we simply need it to see some color in the liquid we are electroporating so that electroporation is more...

07 February 2021 1,671 2 View

LINCS warning only with -pme gpu?

Dear all, I recently bought a RTX3080 and was unable to start the NPT and production steps due to lincs warning (my old gtx 1080ti card ran normally, using the same .mpd), I tried several...

18 December 2020 3,333 2 View

What is the relationship between induction machine stator reactance variation and slip?

It is possible to notice, at some three phase induction machine datasheets, that exists a relationship between stator leakeage reactance and slip, that is, the stator leakage reactance increases...

23 November 2020 2,949 3 View

How to characterize the pore size of membrane filtration with bubble point method?

Hello everyone, I am having troubles with the bubble point measurement to find the pore size of my self-fabricated microfiltration membrane, and I couldn't find a proper answer anywhere else. It...

16 November 2020 7,574 1 View

Is there same kind of limit when annealing two DNA products?

Hi there I'm planning on annealing two PCR products to perform some mutagenesis in a plasmid. I was recommended to try and keep it to 600pb each, for example, but for one of the plasmids there...

15 November 2020 8,656 3 View

Is there any way to learn a neural network based on a cost function that makes use of a root finding algorithm?

I need to integrate a root finding algorithm in a neural network. For that, and in order to be able to perform backpropgation I need the algortihm to be differentiable. Is there any method/...

05 November 2020 1,361 3 View

LiFePO4 DRX peaks?

05 October 2020 8,919 3 View

What software (preferably free) is most recommended for solving Mixed Integer Linear Programming (MILP)?

I need to model a construction and demolition waste management network in order to maximize waste recycling. I read some works that use MILP. Among the software used are GAMS, JULIA, MATLAB and R....

27 September 2020 9,230 9 View

What is dilution factor, how can we calculate it for our sample in drug release studies?

I want to check the drug release percentage. 2mg initial drug, 25mL buffer solution, 2 mL solution was taken out to check absorbance by UV and replaced with 2mL fresh buffer solution, What will be...

15 September 2020 5,099 1 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

How can we theoretically calculate Elemental analysis(percentage) of atoms in covalent organic framework?

For example in one research article the Elemental analysis values of COF-TpPa-1 ( Triformylphloroglucinol (Tp) (63 mg, 0.3 mmol), Paraphenylenediamine (Pa-1) (48 mg, 0.45 mmol) are as follows...

24 February 2021 1,265 6 View

How to Control Whiteflies in coconut leaves?

24 February 2021 1,005 1 View