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18-Crown-6 tetracarboxylic acid (18C6H4) has been successfully used as a chiral selector for capillary electrophoretic (CE), high-performance liquid chromatographic (HPLC), and gas chromatographic (GC) separation of the enantiomers of DL-amino compounds. We have previously used X-ray crystallographic analysis and HPLC with an immobilized 18C6H4 chiral stationary phase to study chiral recognition by...
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