Thin layer and paper chromatography cones

Details Thin layer and paper chromatography cones Thin layer and paper chromatography cones

1979-04-27

1981-04-14

Adee, John

Liquid purification or separation

Processes

Chromatography

2101982, B01D 1508

Patent

active

042618355

ABSTRACT:
This is an invention of paper chromatography and thin layer chromatography "baw-rar" (where "baw-rar" is Hebrew for separate) cones, hereon called PC and TLC cones, and other geometric shapes whose horizontal cross sections generally decrease in area as they are taken further from the base, with the adsorbent or absorbent layer decreasing in thickness from the base to the apex, to be used in PC and TLC work to reduce the horizontal and vertical spreading and diffusing of the developed spots. These will, for example, provide more easily and definitively determinable R.sub.f values, eliminate scraping of relatively large areas when scraping is necessary and increase the sensitivity of PC and TLC. The methods of use of the new PC and TLC cones are also disclosed herein.

REFERENCES:
patent: 3501009 (1970-03-01), Jaworek
patent: 3839205 (1974-10-01), Okumura
patent: 3856681 (1974-12-01), Huber
patent: 3864250 (1975-02-01), Perry
patent: 3919082 (1975-11-01), Falk
patent: 4139458 (1979-02-01), Harrison

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