A bias in the "mass-normalized" DTT response - an effect of non-linear concentration-response curves for copper and manganese.

@article{Charrier2016ABI,
  title={A bias in the "mass-normalized" DTT response - an effect of non-linear concentration-response curves for copper and manganese.},
  author={Jessica G. Charrier and Alexander S. McFall and Kennedy K-T Vu and James Baroi and Catalina Olea and Alam S. Hasson and Cort Anastasio},
  journal={Atmospheric environment},
  year={2016},
  volume={144},
  pages={325-334}
}
The dithiothreitol (DTT) assay is widely used to measure the oxidative potential of particulate matter. Results are typically presented in mass-normalized units (e.g., pmols DTT lost per minute per microgram PM) to allow for comparison among samples. Use of this unit assumes that the mass-normalized DTT response is constant and independent of the mass concentration of PM added to the DTT assay. However, based on previous work that identified non-linear DTT responses for copper and manganese… CONTINUE READING