Determination of the Median Effective Concentration of Nano-Zero Valent Iron to the Marine Phytoplankton Species Isochrysis galbana

Authors

  • Ahmad Razi Othman Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.

DOI:

https://doi.org/10.54987/jobimb.v6i2.426

Keywords:

four-parameter logistics, Toxicity, EC50, Isochrysis galbana, nano zero valent iron

Abstract

Nano zero valent iron (nZVI) is often used in the remediation of organic and inorganic contaminant and has been hailed as an emerging remediation tool. Unfortunately, were few studies has been done on the toxicity of nZVI on organisms especially aquatic organisms. In this study, the toxicity of commercial forms (uncoated, organic coating, and iron oxide coating) of nano zero-valent iron (nZVI) to the marine phytoplankton Isochrysis galbana is revisited in terms of the determination of the EC50 or median effective concentration using nonlinear regression. Based on the four-parameter logistics equation, the median effective concentration for Nanofer 25S, Fe2+ and Fe3+ were 5.46 mg/L (95% confidence interval of 4.84 to 6.16), 70.89 mg/L (95% confidence interval of 37.26 to 134.9), 64.29 mg/L (95% confidence interval of 44.92 to 92.02). The results indicate that Nanofer 25S was the most toxic.

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Published

31.12.2018

How to Cite

Othman, A. R. (2018). Determination of the Median Effective Concentration of Nano-Zero Valent Iron to the Marine Phytoplankton Species Isochrysis galbana. Journal of Biochemistry, Microbiology and Biotechnology, 6(2), 7–9. https://doi.org/10.54987/jobimb.v6i2.426

Issue

Vol. 6 No. 2 (2018)

Section

Articles

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