| 摘要 |
<p>A scanning device is disclosed for use with a spectrophotometer or similar apparatus to provide quantitative measurement of chromatographic bands directly on a chromatographic column. The device comprises generally a support surface having a rotatable element, preferably a roller, having a drive means to rotate said element. A retaining means is also provided to retain the column in contact with the element, with the retaining means preferably comprising a free wheeling or idler roller spaced in parallel relation to the driven rotatable element. Rotation of the column during scanning provides a representative sampling of band intensity on the column thereby providing an accurate, quantitative measurement of a substance as represented by the chromatographic band.</p> |
