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Questions related from Amen Ekhosuehi
I fitted experimental data to obtain the best suited isotherm using Rstudio and CAVS. Redlich-peterson model was the best fit. However, the softwares generated a beta value above 1(1.99 and 2.44...
19 April 2022 7,443 2 View
I am conducting a batch adsorption test in other to plot the isotherm I chose a concentration range from between 3ppm-100ppm of the initial analyte and I had to plot a calibration curve which...
07 February 2022 4,458 5 View
I want to employ the central composite design to optimize 4 parameters with 5 levels. I also would like to fit isotherm/Kinetic models for my batch adsorption experiments Is it possible to plot...
25 August 2021 9,556 1 View
I performed a batch test to evaluate the removal of a drug using a locally produced adsorbent at pH 3, pH4 , pH5 and pH6. I noticed a reduction in peak areas for pH 3 and 4 But at pH 5 and 6,...
20 March 2021 932 7 View
I conducted an assessment studies on wastewater for the presence of pharmaceuticals and all values after working back to original sample of 1L were below the limit of quantification of the method...
14 March 2021 9,546 5 View
Please I need the formular to calculate the concentration of analytes in 1L wastewater sample. I used SPE for extraction and reconstituted into 2ml. 100ul was injected from the 2ml into the HPLC...
23 December 2020 5,357 9 View
I am conducting a batch test with a locally produced adsorbent with a major constituent of Calcium oxide and adsorbate (carbarmazepine, sulfamethoxazole and diclofenac). I want to keep the pH...
19 November 2020 792 6 View
I used SPE columns to cleanup 1L sample volume and after eluting and drying , I reconstituted to 2ml using methanol before quantifying with HPLC-DAD? please how do I perform the recovery studies...
29 August 2020 8,356 3 View
I used SPE columns to cleanup 1L sample volume and after eluting and drying , I reconstitute to 2ml using methanol before quantifying with HPLC-DAD? I use SPE columns to cleanup 1L sample volume...
29 August 2020 1,352 3 View