What is the explanation of broad peak in cyclic voltammetric curve?

What is the difference between broad and sharp cyclic volatmmetric curves? and what are the reasons for broad curve? especially when analyzing carbon material?

01 February 2019 9,802 1 View

Is it important to add buffer in the cathode chamber of MFC?

Can I use distilled water as catholyte in MFC? or if I use Potassium ferrocyanide, can I dissolve it in distilled water instead of buffer solution?

11 December 2018 1,374 0 View

The llight produced from bioluminescent bacteria, is it able to stimulate photosynthesis in other nearby bacteria and other photosynthetic organisms?

Light produced by bioluminescent microorganisms is composed of photons, are they able to stimulate photosynthesis in other marine organisms? Thsnk you.

03 April 2018 3,318 0 View

What is more accurate to study the effect of pH on bacterial activities, preparing different buffers at different pHs, or adjusting the medium pH?

I am preparing to study the effect of pH on bacterial activities, what is the perfect way for that: 1. Using different buffers and adding the medium components? or 2. Adjusting the medium pH by...

02 March 2018 3,995 2 View

How can I write in my thesis that a Pseudomonas isolate is pyocyanin producer?

Is it enough and acceptable to mention that the observation of fluorescent color is a clue that my strain is pyocyanin producer? Thanks

11 December 2017 8,941 0 View

How can I get the heat of combustion in Energy Efficiency equation for MFC?

In the Energy efficiency equation, how can I get the heat of combustion? Thanks.

10 November 2017 5,310 1 View

What is the "Residual curve" regarding the polynomial fitting?

When I run the polynomial fitting on my data, a curve named "Residual curve"b appear after calculation, what is the meaning of that curve? and is it acceptable to use it instead of the fitting...

10 November 2017 1,342 0 View

How can I calculate number of electrons involved in electrochemical reduction of oxygen?

I am working in Microbial fuel Cell (MFC) and want to calculate number of electrons involved in reduction of oxygen. Thanks

10 November 2017 8,456 0 View

How can I obtain slope of any curve from Origin 6.0 or 8.0 software?

How can I use origin in getting the slope of any curve? Thanks.

10 November 2017 5,738 0 View

About polarization and power curves, is there a method to use potentiostat, without the need for changing different external resistances?

The common method of determination of polarization and power curves of Fuel cell is to change different external resistance and read the corresponding voltage and current. I would like to ask is...

10 November 2017 6,276 2 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 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

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

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

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View