character: Dr. Alan Brown
topic: Chromatography Fundamentals
grade: 12
subject: Chemistry
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character: Ms. Sarah Johnson
topic: Applications of Chromatography in Forensics
grade: 12
subject: Chemistry
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character: Mr. James Smith
topic: Techniques in Liquid Chromatography
grade: 12
subject: Chemistry
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character: Dr. Emily Davis
topic: Separation Methods and Their Principles
grade: 12
subject: Chemistry
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