Conversion of ppm gor NH3 gas to micromole/g ?

I use ammonia of 0.3g in a TPD experiment. I get 21.02 ppm of NH3 which I intend to convert it to micromole/g of NH3. I have got some feedback from professors but it seems to be a little...

02 July 2019 4,828 5 View

Help with microdialysis for sampling oxytocin in rats?

I am using probes (50Kda cutoff) from Amuza Inc to sample oxytocin from the hypothalamus of rats. Before performing the experiment on rats, I did an invitro experiment to determine recovery rate...

26 August 2018 4,281 1 View

What does circulation (in fluid dynamics) mean in context of physical significance ?

I understand that circulation is an integral quantity (i.e. it gives a number over an control volume), and it represents how much does a flow rotate along a contour. But what is that number...

17 October 2016 5,907 8 View

What is the difference between a copper electrode and Nickel plated copper electrode for Tin (IV) Chloride in HCl bath?

Actual Tin reduction is nearly - 0.8 V. The peak of -0.1 V is the weather HCl reduction or any other reaction occurs. If I use Ni plated copper electrode -0.1 V peak is not appearing why? Fig:...

20 July 2014 6,908 3 View

What difference does it make if I use gas purging or not during electrodeposition?

What is the role of gas purging?

09 January 2014 2,309 1 View

No title

Procedure: Polishing electrode with 0.05 micron powder around 10 to 15 min. Sonicate with acetone & water then run the CV segments: 2, potential: (-0.2 to +0.6)

19 June 2012 5,999 27 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

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

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View