It's difficult to avoid contamination, since everything (samples, containers, equipements, etc) will have been in contact with glove at least once, and good decontamination is very hard.
It's difficult to avoid contamination, since everything (samples, containers, equipements, etc) will have been in contact with glove at least once, and good decontamination is very hard.
Yes, exactly, that's why you use control samples to get the baseline.
You see how it's a bit of a self-starting problem?
Let's say you want to determine the amount of microplastics in ocean water samples.
You'd create a control by creating saline solution with distilled water and sodium chloride. Then you treat both the control and your sample(s) the same way in the analysis.
Surely something should tick you off when the microplastic levels aren't much lower in your control compared to your actual sample?
Freshly cleaved mica has an extremely clean and flat surface.