Dynamic processes within vanadium complexes?

Any input on whether or not spectrophotometry or HPLC could be used to investigate dynamic processes within vanadium complexes in aqueous solutions? Thanks

06 July 2018 5,825 39 View

Identifying Vanadium in soil samples using HPLC ?

Hello, I want to ask please about a soil sample preparation for HPLC. I have tried digestion, but running samples using HPLC did not give me some good chromatograms. I believe that I need to use...

04 May 2016 3,339 5 View

C18 HPLC column washing?

Hello, I am working on a project that uses HPLC to investigate the presence and speciation of vanadium in environmental samples. I have used vanadium standard and pre-treated my samples before...

31 December 2015 8,571 8 View

Any suggestions for a CRM of a beach sandy soil?

I wanted to ask please if some body here has used a CRM of a beach sandy soil sample?I am interested in vanadium contamination within a sandy beach in Dubai. I have tried to look in few CRM...

11 December 2015 4,133 13 View

Seawater reference material?

I wanted please to ask if somebody here has used seawater reference material for trace metal characterization and speciation purposes

11 December 2015 5,976 2 View

Any advice on HPLC retention times?

Hi, I am new in the field of practical usage of the HPLC technique, I am working on a project that deals with characterizing vanadium within seawater samples. I have started using the technique...

10 November 2015 389 6 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

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 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

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 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