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A problem in etching Pyrex glass capillary columns |
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| Authors: | J. F. Gates Clarke |
| Abstract: | Recent attempts to reproduce a literature method for etching of Pyrex glass capillary columns with ?etching ether”? resulted in reduction of the columns to dust through a violent explosion. Although modifications of the method produced etched columns, we found that less than satisfactory results were achieved. Introduction of etching ether by simply coating the column with a thin film of the ether produced an evenly etched column with well defined whiskers. Several observations made during the etching process will also be discussed. |
| Keywords: | Gas chromatography Capillary, glass Whisker production Violent explosion at the „ ether etching” ︁ step Modification of pyrex glass etching leads to more uniform whiskers in size and shaep, simple, safe |