Please tell me the procedure for cadmium detection by UV-spectrophotometry using 5-7 dibromo 8-hydroxyquinoline because hydrophobic chelates are forming? what should i do with these chelates as they interfere in uv spectrophtometer
Better to use EDAX.
i have determined maximum wavelength of my dye wastewater. How to determine initial concentration of dye wastewater and name of dye in it?
05 June 2018 6,972 6 View
Kindly suggest few models which are best and simple for fixed bed column study?
08 September 2017 943 1 View
How to calculate external mass transfer coefficient for fixed bed column fiiled with the adsorbent pellets?
07 August 2017 9,319 3 View
How to contact googlescholar for wrong citation?
05 June 2017 3,126 7 View
How to calculate mass transfer coefficient and axial dispersion coefficient. when only following parameters are known 1.Bed height 2.Flow rate 3. Inlet adsorbate conecntration 4. External mass...
05 June 2017 6,828 1 View
Does anyone have any experience with "Environmental Engineering and Management Journal" with ISSN 1582-9596 and IF - 1.008. On their website they instruct to mail your research paper directly on...
05 June 2017 8,645 0 View
If i am working on a column filled with adsorbent, in my batch study max adsorption capacity was achieved in 1 hr. In continous column how can i achieve that max adsorption capacity that was...
05 June 2017 4,398 7 View
In my model of matlab for fixed bed adsorption column, i have obtained very large time in X-axis of breakthrough curve..i.e nearly 5*10^(5) second. Is it possible? why it is higher. please suggest?
04 May 2017 1,547 4 View
I have used BET to determine surface area of my adsorbent (cellulosic material) but nitrogen does not adsorb on its surface. Only one point is available. Please suggest how can i measure its...
04 May 2017 6,423 3 View
How to make pellets of acid treated wheat bran ? It is similar to activated carbon..we made pellets using pelletizer using clay as a binder..pellet is perfectly made but after dipping in water it...
03 April 2017 340 0 View
A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...
11 August 2024 9,801 2 View
Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!
11 August 2024 3,770 4 View
Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?
06 August 2024 980 5 View
Hi, i would like to simulate an absorption process in Aspen Plus. I want to use the NRTL model und would like to add some individual Henry coefficients. Is that possible and how?
05 August 2024 2,333 2 View
Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...
05 August 2024 3,783 2 View
Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?
03 August 2024 7,035 3 View
I'm researching light sources and their UV emissions. I'm curious if a 50W, 7500K conventional LED lamp emits any UV light. I found that a 200W tungsten lamp can emit up to 1.5 mW/cm² at 350 nm....
31 July 2024 3,843 7 View
Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.
31 July 2024 9,140 2 View
Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...
30 July 2024 8,339 2 View
Hello everyone, I am new to this characterization but watching videos on youtube I have already plotted a Nyquist plot (Z' and -Z'') and already fitted models on my material using Zsim. But now I...
29 July 2024 1,376 0 View