Smruthi Prabhu

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Questions related from Smruthi Prabhu

Has anyone experienced varied behaviour of ICP-OES instrument each time it is operated?

We face the following problem: 1) It's a general problem faced. During the standard calibration (irrespective of metal), the std. calibration was successful the previous time, but the next time...

25 January 2018 2,564 3 View

What is the flaky material present on the surface of the biomass (Untreated) as seen in the Scanning Electron Micrograph?

I have attached herewith, the paper by Pirbazari et al., (2014) where the Foumanat tea waste was alkaline treated. The SEM images thus presented have clear differences between the treated and the...

24 June 2017 4,029 1 View

Is the formation of Cadmium chromate and Nickel chromate as easy as lead chromate formation? Are they insoluble in water as lead chromate?

I am interested in preparing a bimetallic system to run an adsorption study. I want to combine an anion [Cr(VI)- salt used: Potassium dichromate] and a cation [Ni(II)- Ni(NO3)2.6H2O or Cd(II)-...

18 March 2017 8,994 4 View

What should be the unit of Ce (equilibrium concentration) while putting it in the formula of Polanyi potential in Dubinin-Radushkevich Isotherm?

This was a question asked earlier at RG. But unfortunately, the answer was not to the point. There are several papers available that have applied DR isotherm model for their data. Surprisingly,...

11 March 2017 4,815 5 View

Is it advisable to determine the Cr(VI) concentration present in NaOH (Desorbing agent) using 1,5 Diphenyl carbazide method?

I am interested to know the Cr species in NaOH post desorption. The DPC method works only in an acidic condition. The addition of HCl: water (1:1 ratio) of pH1 is thus included in the protocol....

07 February 2017 8,375 3 View

How much amount of Molecular sieves can be added as a desiccant in a desiccator of a particular volume?

I want to analyze the ash content in my plant biomass. ASTM protocol suggests the use of Calcium sulfate (anhydrous) as the desiccant. Upon reading up I found that molecular sieves can be used as...

26 December 2016 3,847 6 View

What is the best method to screen an efficient part- root, shoot and leaves (separately)of a plant biomass in metal uptake?

With the optimal pH found, can I screen the part (root, shoot or leaf) by just subjecting it to the metal solution (fixed conc.) at optimum pH for a particular time period? Or is time studies...

13 March 2016 9,877 3 View