GC, GC-MS, GC-MS-MS course?

Hello everybody I would like to know if there is a really good online course about GC, GC-MS, GC-MS-MS, or one of the best books about instrumental chemistry. I would like to improve my knowledge...

31 December 2016 7,614 2 View

Which is the difference between potentiometric and electrometric method?

Hello everyone: I need some help, I got confused about those kind of methods: potentiometric and electrometric method, is it a different property measure? Please, send me some link (PDF or really...

05 June 2016 177 3 View

How may I quantify or determinate magnesium carbonate in soil?

03 April 2016 6,954 6 View

How can I eliminate interferences of some ions from carbonate and bicarbonate analysis?

Hello everyone I will do a validation of carbonates and bicarbonates analysis in soils (through titration analysis) but I have found that would be some interferences of some ions present in the...

03 April 2016 1,838 4 View

Is there some interference with synthesis of polymeric nanoparticles?

Hello everyone I've been working with PLA nanoparticles forma drug delivery, but I had had some troubles with the synthesis: I have no changed anything in my procedure, and I got differents...

01 February 2015 8,374 6 View

How can I improve the synthesis of polymeric nanoparticles?

I'm preparing polymeric nanoparticles using emulsification solvent evaporation method, but I haven't got the characteristic emulsion that indicates the nanoparticles formation.

10 November 2014 9,181 8 View

How can I eliminate baseline noise in HPLC?

09 October 2014 7,324 11 View

How may I do an optimization of experimental design?

Hello everybody I'm doing an experimental design (23 factorial experiment), but I need to optimize that experimental design, I haven't found the exact information to do that, maybe using...

06 July 2014 3,059 6 View

Emulsification diffusion method?

When I add water to make the diffusion step, I see two phases. Is that normal ?

09 October 2013 2,225 5 View

Which is the best organic solvent to avoid precipitate proteins?

I'm using a biopolymer and I need to dissolve it in a organic solvent, but also, I'm using a protein. Which solvent do you advise to use? Maybe DMSO?

09 October 2013 2,635 2 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 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

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How can I calculate the rdf of water molecules around 'Na' ions that are closest(adsorbed) to the nanoparticle(solute)?

Hi, I want to calculate the radial distribution function for water molecules around the Na+ ions adsorbed on the surface of a spherical nanoparticle using the gromacs trajectory dynamically? For...

28 February 2021 5,650 1 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View