STUDIES ON THE ZEOLITE MEMBRANE PLOT COLUMN BY IN-SITU SYNTHESIS

The preparation of the zeolite membrane PLOT capillary column by in si tu synthesis was described, The advantages of this new kind of column were discussed, Some analytical application to the separation of vario us mixtures on zeolite membrane PLOT column compared with those on the coated zeolite PLOT column were reported, The reproducibility of the zeolite membrane PLOT column were evaluated, It has been found that th e zeolite membrane obtained is more homogeneous and thinner than coate d zeolite, The zeolite membrane PLOT column can shorten the analysis t ime, make the peak more symmetric, allow separation at lower temperatu re and broaden the range of utilization of zeolites in GC.