How does the sampler work?
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The sampler is like a sponge. Certain chemicals prefer the sampling material over the surrounding environment (air). So when they are absorbed into the sampler, they stay stuck inside. |
Can the samplers detect low levels of chemicals?
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Yes. Our lab at Oregon State University can detect chemicals below the detection limits used by the Environmental Protection Agency, so these samplers are very sensitive. |
How do you detect the chemicals trapped in the samplers?
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We use a technique called Gas Chromatography-Mass Spectrometry, or GCMS. To learn more, visit this interactive display about GCMS. |
OREGON STATE UNIVERSITY
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