character: Prof. Andrew Brown
topic: Applications of Chromatography in Soil and Water Testing
grade: 11
subject: Chemistry
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character: Dr. Lisa Ray
topic: Environmental Chemistry: Analyzing Soil Contaminants
grade: 11
subject: Chemistry
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character: Ms. Sarah Lee
topic: Techniques in Water Quality Testing
grade: 11
subject: Chemistry
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character: Mr. Tom Hu
topic: Innovations in Chromatography for Environmental Analysis
grade: 11
subject: Chemistry
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