Conductivity value not matching with other parameters?

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What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

Is Handheld XRF analyzer useable? and accurate in geochemical test?

What is the different between Lab XRF and Hanheld XRF, is it accurate and useable to analyze sedimentary rocks?

23 January 2021 9,941 6 View

Does oil interfere Total Dissolved Solid determination in water?

Dear friends, this is regarding Total Dissolved Solids test. when we have a oil mixed sample how do we analyze TDS? when sample is filtered through a glass micro fiber filter paper, oil in the...

04 November 2020 5,065 3 View

UV-Vis Spectroscopy of Carbon Nano Tube ?

Dear all, I just started the UV-Vis Spectroscopy of Carbon nanotube (CNT). I just got confused to interpret the results. Would you please help me with these questions: 1- Why I cannot find the...

30 June 2020 4,676 7 View

Why do I not see any bands on SDS-PAGE while the Bradford colorimetric assay gives blue color ?

I am purifying a recombinant protein (MW 37 kD) using IMAC. I used the Bradford colorimetric assay (by adding a drop of the solution from the column to Coomassie blue G-250) on the wash and...

07 April 2020 3,068 9 View

How can connected between microbiology with histology or pathology?

any idea a bout how bacterial infection due to tissues pathology this could be a link between them or not.

08 February 2020 6,840 4 View

In meta analysis, what do you have to do with a research in which the dependent variable is broken into two variables ( y1 and y2)?

If you want to use the meta-analysis as your research method to investigate the relationship between two variables (ie x as independent and y as dependent variable), what do you have to do with a...

05 December 2019 5,666 3 View

Is there a way to test arsenic content in LPG streams up to ppb??

I working on adsorption of Arsine and phosphine from hydrocarbon streams such as propane, propylene, etc. Is there a test method that can be detect Arsine in the range of 1 ppb from these feed...

24 May 2019 5,007 1 View

How can I calculate LOD and LOQ in HPLC-MS/MS?

Hi, Dear All, I got some results of my master thesis (atropine and scopolamine detection in contaminated millet with Datura seeds) with HPLC-MS/MS. Now, I want to calculate LOD and LOQ. I know it...

07 February 2017 4,458 3 View

Complications using Psychtoolbox WaitSecs function?

I wrote a Matlab Code with Psychtoolbox functions. When I use "WaitSecs" function with any time duration above 5secs, my code crashes. I replaced the WaitSecs with Matlab built-in function "Pause"...

12 January 2017 8,289 3 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 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

Does any one can help me choose a reasonable basis set for intermediate metal ions interactions with guanine (i.e Fe2+, Mn2+, Cu2+ and exc.)?

Hello every body Does any one has any idea to help me choose a reasonable basis set for intermediate metal ions (i.e Fe2+, Mn2+, Cu2+ and exc.) interactions with guanine or other DNA organic...

01 March 2021 6,187 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

What could be some reasons why unstimulated monocytes are getting activated?

Im doing PBMC isolation -> CD14+ enrichment using magnetic beads -> stimulation setup. My negative control is just cells in cRPMI but they seem to get activated over and over again.

28 February 2021 7,883 3 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View