character: Professor Sarah Lee
topic: Impact of Gas Chromatography in Environmental Testing
grade: 11
subject: Chemistry
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character: Dr. James Carter
topic: Gas Chromatography Applications in Air Quality Monitoring
grade: 11
subject: Chemistry
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character: Ms. Emily Chen
topic: The Role of Gas Chromatography in Soil Analysis
grade: 11
subject: Chemistry
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character: Mr. David Kim
topic: Gas Chromatography in Water Pollution Assessment
grade: 11
subject: Chemistry
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