Drinking water is a relatively clean matrix. And so, typically, you don't have to do a lot of processing of the sample before you characterize it. So, I would compartmentalize detection techniques into three different stages.
One is the sample processing stage. That includes sample collection and how we process the sample. How do we load these samples that potentially contain these microplastics onto a platform? Typically, we would use a filter to load these microplastics or to separate them from the water and other constituents that are present in the environmental sample.
And then you have the analytical technique that actually detects and identifies these micro- and nanoplastics.
And then you have a post-processing techniques where you get these signals and these spectra, as you will, from these analytical techniques. And then you match it with an existing library of some sort. And then you say that, "Oh, this looks like polypropylene" or "this looks like polyethylene," and so on. So, all these different stages come with their own challenges.
- Dr. Balaji Rao
Assistant Professor of Civil, Environmental, and Construction Engineering at Texas Tech University
In conversation with Dr. John Ahn,
ALLATRA Global Research Center
Watch the full podcast: “The Scientific Challenge of Tracking Microplastics | Dr. Balaji Rao | ALLATRA GRC.”
#Microplastics #Nanoplastics #EnvironmentalScience #ScientificResearch #WaterQuality #ALLATRA #ALLATRAGRC
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