character: Professor John Smith
topic: Applications of Chromatography in Industry
grade: 11
subject: Chemistry
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character: Dr. Emily Watson
topic: Liquid Chromatography Techniques in Pharmaceutical Industries
grade: 11
subject: Chemistry
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character: Mr. Richard Lee
topic: Gas Chromatography in Environmental Testing
grade: 11
subject: Chemistry
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character: Ms. Laura Chen
topic: Role of Chromatography in Food Safety and Quality Control
grade: 11
subject: Chemistry
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