Cutting Filter Paper for Microscale Use At Bethany College we have found a new use for cork borers. One of the new microscale organic kits uses a Hirsch funnel with a nondisposable 20-pn polyethylene fiitted disk. I t is suggested that for gmd practice a piece of #1 filter paper be used to prevent dogging of the frit. You can pick exactly the diameter cork borer needed and cut a supply of filter paper by placing approximately six fdter papers on a piece of wood and simply boring away. Filter paper for the top of chromatography columns can be cut in the same way. Charles R. Englund Bethany College Lindsborg, KS 67456
A314
Journal of Chemical Education
