Oscar Balladares

5 Questions 8 Answers 0 Followers

Questions related from Oscar Balladares

Why does He mode is not working at ICP-MS?

Hello, I am working on the installation of an Agilent ICP-MS 7700s equipment. I am only using He mode. I have tested No Gas mode and everything seems just fine. Also several CRM have been tested...

13 August 2019 8,298 2 View

What is the difference between E parameter in D-R model and enthalpy change for Van't Hoff equation in the determination of physi and chemisorption?

I have been reading several documents in the thermodynamic characterization of an adsorption process. However, I have found some differences about this way of characterize the physisorption or...

13 July 2016 913 7 View

Why after a time in an adsorption process a spontaneous desorption process can happen?

I am studying the adsorption of lincomycin on activated carbons and zeolites. I have carried out a preliminary stage for the determination of equilibrium time, For this purpose I take samples...

25 May 2016 580 4 View

How to determine an adequate initial concentration of adsorbate in an adsorption process?

I am studying the adsorption of lincomycin on activated carbons. I have determined the equilibrium time and now I would like to begin with the isotherms construction. Therefore, I need to specify...

24 May 2016 3,769 8 View

What is the role of NaCl in the determination of the point of zero charge?

Hello, I am working in the characterization of some activated carbons. In the determination of the point of zero charge by pH measurement. Some methods mentions the use of an electrolyte (0.1 M...

20 April 2016 1,487 1 View