15.23—High-performance liquid chromatography, HPLC, and gas chromatography, GC, are types of column chromatography that separate

Know that high-performance liquid chromatography, HPLC, and gas chromatography, GC, are types of column chromatography that separate substances because of different retention times in the column and may be used in conjunction with mass spectrometry, in applications such as forensics or drug testing in sport.

Use —high-performance liquid chromatography, hplc, and gas chromatography, gc, are types of column chromatography that separate to connect the rule to the data and decision in the question.

This matters because —high-performance liquid chromatography, hplc, and gas chromatography, gc, are types of column chromatography that separate determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —high-performance liquid chromatography, hplc, and gas chromatography, gc, are types of column chromatography that separate to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —High-performance liquid chromatography, HPLC, and gas chromatography, GC, are types of column chromatography that separate is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.