character: Ms. Thompson
topic: Introduction to Chromatography
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Separation Techniques in Chemistry
grade: 9
subject: Chemistry
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character: Dr. Lee
topic: Applications of Chromatography in Forensics
grade: 9
subject: Chemistry
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character: Ms. Patel
topic: Understanding the Basics of Chemical Mixtures
grade: 9
subject: Chemistry
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