ANSWER ALL PLEASE: (a) Draw an outline schematic diagram of a typical instrument for High Performance Liquid Chromatography (HPLC) and label the individual components. (b) Discuss the materials used in the construction of the columns used in HPLC, giving the approximate dimensions of the column and the particle size of the typical column packing material. (c) Giving examples, discuss the chemical nature of the common stationary phases used in HPLC making sure to distinguish between normal and reversed phase HPLC.

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