Meysam Shahrashoub

7 Questions 6 Answers 0 Followers

Questions related from Meysam Shahrashoub

What is the reason for the "No air pressure" error in the atomic absorption spectroscopy?

Our laboratory has a PerkinElmer (model: AAnalyst 800) atomic absorption spectroscopy. Recently, the performance of the device has encountered a problem. When the circuit breaker of the device...

23 June 2023 4,199 4 View

What is EPA/WHO permissible concentration for Copper (Cu) and Chromium (Cr) in the industrial effluent?

I have searched many papers for allowable concentration of Copper and Chromium in industrial wastewater but I didn't find anything useful. I would be so grateful if you help me with this matter.

03 April 2019 6,875 17 View

Is there any way to evaluate antioxidant activity without spectrophotometric methods?

I want to determine some extracts' antioxidant activity but I am looking for methods which do not need to spectrometery. Please let me know if you have any idea. Thanks.

09 January 2019 7,879 9 View

At what pH Fe (II) and Fe (III) will precipitate?

Assume a solution with acidic pH, which consists of 2 and 3 valent iron ions. With increasing the pH, iron content will precipitate. Do ferric and ferrous precipitate in an equal pH? If no, at...

01 January 1970 4,737 9 View

Is it possible to run regression model while there is only one variable input?

I have evaluated the adsorption and desorption of two pollutants from aqueous solutions in singular and binary conditions with three different adsorbents. In my adsorption dataset, there are four...

01 January 1970 2,488 4 View

Recycling and utilization of Iron Ore Tailing and Direct Reduction Iron (DRI) Sludge

Do you have any suggestions for using these materials?

01 January 1970 7,361 5 View

Conversion of a crystalline structure to an amorphous one

I am looking to use the pozzolanic properties of slag, but it is impossible due to its crystalline structure. Therefore, the slag structure must be transformed to amorphous. What is your solution...

01 January 1970 8,588 3 View