character: Ms. Emily Zhang
topic: Chromatography Methods in Chemical Analysis
grade: 11
subject: Chemistry
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character: Dr. Michael Thompson
topic: Principles of Chromatography
grade: 11
subject: Chemistry
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character: Prof. Sarah Lee
topic: Applications of Chromatography in Forensics
grade: 11
subject: Chemistry
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character: Mr. James Kim
topic: Advanced Techniques in Chemical Analysis
grade: 11
subject: Chemistry
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