Please tell me the procedure for cadmium detection by UV-spectrophotometry?

02 February 2016 1 6K Report

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

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Science method

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I have determined maximum wavelength of my dye wastewater. How to determine intial cocentration of dye wastewater and name of dye in it?

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 6,849 6 View

Kindly suggest few models which are best and simple for fixed bed column study?

08 September 2017 827 1 View

How to calculate external mass transfer coefficient for fixed bed column filled with the adsorbent pellets?

How to calculate external mass transfer coefficient for fixed bed column fiiled with the adsorbent pellets?

07 August 2017 9,207 3 View

How to contact googlescholar for wrong citation?

05 June 2017 2,985 7 View

How to calculate mass transfer coefficient and axial dispersion coefficient?

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 6,679 1 View

Continous column adsorption capacity

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 4,279 7 View

Does anyone have any experience with "Environmental Engineering and Management Journal" with ISSN 1582-9596 and IF - 1.008.

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 8,527 0 View

In my model of matlab for fixed bed adsorption column, i have obtained very large time in X-axis of breakthrough curve?

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 1,314 4 View

How to measure adsorbent surface area?

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 6,204 3 View

How to make pellets of acid treated wheat bran . It is similar to activated carbon?

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 218 0 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

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 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

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Can a semi-conductor material have different absorption coefficient?

Does the absorption coefficient of the semiconductor changes with the change in the structure of the semiconductor? If you have a thin film and nanowire of the same semiconductor, will the...

23 February 2021 9,799 4 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View

In methylene blue test Why is UV absorbance reading very low as soon adsorbent is added and then increasing before reaching equilibrium?

Hello, I'm working on removal of methylene blue. 01. in the dark test very first reading is taken 15 minutes after adding adsorbent to the dye solution and that UV absorbance reading is very...

19 February 2021 472 5 View

absorption= 1-mag(S(FP1:1,FP1:1)S(FP1:1,FP1:1))-mag(S(FP2:1,FP1:1)S(FP2:1,FP1:1)) is it correct for absorption ?

hi everyone I am simulating a unit cell structure in HFSS using Flouquet port having two modes for absorption I have used this formula:- absorption=...

17 February 2021 9,178 2 View

Unusually Busy Raman Background?

Hello, I am observing a nearly periodic background spectrum for a wide variety of SERS substrates. I see this response (attached below) for bare Au films, Cu films, and Au nanoparticles on...

15 February 2021 9,922 5 View