Is nitrogen necessary to prepare nanoscale zero-valent iron? Can I use nitrogen?

04 March 2024 0 2K Report

There is no nitrogen in the laboratory, only argon, so I always use argon.

Badges
Science topic

More Jun Jia Zeng's questions See All

How to understand Instantaneous SINR (ISINR) ?

I read two papers which uses Instantaneous SINR (ISINR) as criterion for performance evaluation. In the two papers below, it seems the desired signal (numerator) in ISINR does not involve...

16 July 2024 4,545 0 View

Does a Banach algebra version of "the sum of a closed subspace and a finite dimensional subspace is always closed" exist?

In the setting of Banach spaces, it is well know that if $M$ is a closed subspace of a Banach space $X$ and $F$ is a finite dimensional subspace of $X$, then $M+F$ is closed. Does a Banach...

16 July 2024 8,437 4 View

What should be consider when do CVD?

I'm trying to create a new substance. Are there any important considerations when fabricating with CVD? For example, lattice constant If you have any such considerations, please let me know.

15 July 2024 9,359 0 View

For 3d transition metal elements, is there a mathematical expression for the energy E in their hard X-ray absorption spectrum?

Only the absorption side is considered, and the fine structure of the extended side is not considered

05 July 2024 2,894 2 View

How to realize charge and discharge of in-situ batteries in PPMS? Is there any expert scholar who can give me some advice?

The difficulty lies in how to miniaturize the battery. The sample holder is only 6.5mm, which means that the width or height of the battery cannot exceed 6.5mm (the height is about 3cm). I hope...

05 July 2024 8,141 0 View

Anybody can assist me in Protein and magnetic beads seperation?

Hi, I hope you are doing well, I am working to remove DNA from protein sample by using silica hydroxode magnetic beads. I used different binding buffers but I din't get my protein band in initial...

02 July 2024 5,502 4 View

Is the polymer has low CTE if the polymer has the high chain packing and small free volume?

I wonder the tendency of coefficient of thermal expansion (CTE) of polymer which has different chain structure. In my opinion, CTE will be higher when the polymer materials has high interaction...

30 June 2024 570 5 View

How to calculate lattice mismatch before XRD measurement?

I know that I need to calculate lattice mismatch to determine which substrate a particular material can grow on. However, no matter how much I searched, I could not find a way to calculate the...

03 June 2024 6,730 2 View

How to combine different Effect sizes (OR, RR, HR, PR) & which one to use for Meta-analysis?

Hi all!...

29 May 2024 7,789 4 View

About lattice constant : How much difference should the mismatch be?

How small should the lattice constant mismatch be when epitaxy of a material? and in case of A+B -> C, is C the material whose lattice constant must match that of the substrate? Did I...

29 May 2024 8,155 4 View

How do I replace a file with a more recent version of a paper that was uploaded to ResearchGate?

The paper in question is "Interpolation of Nitrogen Fertilizer Use in Canada from Fertilizer Use Surveys". This paper was very recently published by Agronomy (MDPI). Agronomy has, in the last day...

07 August 2024 9,934 3 View

Project/Experimental assistance ？?

Do experiments on behalf of Our Business: Laboratory animal rearing Animal modeling Experimental animal behavior detection, image ultrasonic detection, electrophysiology platform Organoid...

05 August 2024 5,829 1 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

What is the best protocol for freezing the rat brain in preparation for protein detection by Elisa ?

What is the best way to freeze the rat brain - liquid nitrogen, Dry ice , isopentane - after isolation for later protein investigation by Elisa?

01 August 2024 1,722 1 View

How to select target material for X-Ray generation?

Generally, the target material is Mo, Co, Cu, Fe, Cr, etc, so on what basis should we choose this material?

31 July 2024 5,824 0 View

What is the solubility of Iron (+3) in Bismuth Oxide?

Dear all: I am modifying Bismuth Tungstate with Hematite (Fe2O3), so I would like to know about how much Iron(+3) can form a solid solution in a Bismuth Oxide matrix. Best wishes Marco

29 July 2024 2,163 1 View

Can you recommend provider Intermediate laboratory test for hydrocarbon, polyethylene & polypropylene?

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

Is it true that there is a physico-statistical meaning to the constant π other than circular geometry but the iron guardians of the SE deny it?

We assume that there is a physico-statistical meaning to the constant π other than circular geometry, but the iron guardians of the Schrödinger equation deny this. The iron guardians of the...

22 July 2024 4,285 9 View

How are clinical and environmental yeast/fungal strains stored usually in mycology laboratories?

I understand a glycerol stock for long-term preservation would be ideal, but how are working cultures generally stored? Mainly concerning Candida spp. isolates. A few references mention that they...

22 July 2024 6,592 3 View

What does an additional peak in FTIR between 3100 and 3300 nm affect the quality of the material, benzethonium chloride USP??

I do not know much about FTIR! The material Benzethonium Chloride USP was compared to a reference standard in regards to FTIR, as per the USP testing: Identification B. Infrared absorption (FTIR),...

16 July 2024 6,918 7 View