Improvements in or relating to apparatus for producing gradient layers for thin-layer chromatography

摘要

1,131,771. Coating chromatography plates. SMITH KLINE & FRENCH LABORATORIES Ltd. 15 Aug., 1966 [17 Aug., 1965], No. 35324/65. Heading B2L. Chromatography plate 34 is coated with a gradient layer adsorbent slurry mixtures, which have been previously mixed in trough 1 by fitting into the trough a dividing member 27 consisting of a plate 28 forming a closure and a plurality of perpendicular divider plates 29 and shaking by hand. by fitting a projection 18 of a removable base plate 17 of the trough under rails 31 of a leveller 33 and advancing the trough to the left (as viewed in Figure 5) between the rails. A slot 6, adjustable in height by means of a movable plate 7, is provided at the base of wall 3, and the slot is sealed, except during coating, by a rubber stamp 19 which remains behind on the base plate when the trough is advanced over the chromatography plates 34. During mixing the base plate is attached to the remaining open bottomed trough by pivotal clamps 15. 16. A removable diagonal partition (Fig. 1, not shown) is used to divide the trough into two sections during the feeding to the trough of the two adsorbent liquids prior to mixing.