Thien Tran

6 Questions 3 Answers 0 Followers

Questions related from Thien Tran

Calculate the sorbed amount of a molecule based on specific surface area?

Hi all, I want to predict the sorbed amount of 0.5 M sodium sulfate solution with my ferrihydrite powder. The measured specific surface area is 190 m2/g. I also found the topological polar...

12 October 2021 7,290 1 View

Suggestions to filter out Carbon nanotubes?

Hi all, I am looking for suggestions/ideas to filter out the multiwalled carbon nanotubes from my solution. I've tried a simple 0.22 um PTFE syringe filter, it didn't work. Does anyone know...

06 October 2021 7,755 3 View

Salt effects on PFOA signal by LC/MS/MS with internal standard addition?

Hi all, I am analyzing the concentration of PFOA (Perfluorooctanoic acid) using LC/MS/MS (negative ionization mode). In my method, I'm also using 13C8-PFOA as my internal standard (IS) to take...

13 July 2021 5,196 2 View

Injecting 0.5M Na2SO4 solution to analyze for PFOA using LC/MS/MS?

Hi all, I'm planning to analyze for PFOA using LC/MS/MS, however, my solution is containing 0.5M Na2SO4- someone told me it can interfere with the ionization process of the instrument. Though,...

08 May 2021 1,885 2 View

Electrochemistry- cyclic voltammetry (CV), galvanostatic charge discharge (GCD), Electrochemical Impedance Spectroscopy (EIS)?

I am currently running some electrochemistry experiments, including CV, GCD, and EIS. However, my background is not in electrochemistry, so I am running into issues about data interpretation. The...

13 August 2019 972 4 View

Internal standard for PFOA and PFOS?

I am developing an LC/MS/MS method for analyzing PFOA and PFOS. LC/MS/MS method are always required an internal standard addition; 13C4-PFOA and 13C4-PFOS are good internal standard for these...

09 August 2019 7,155 12 View