Concentration and transfer methods for a chromatogram and an LC/

Details Concentration and transfer methods for a chromatogram and an LC/ Concentration and transfer methods for a chromatogram and an LC/

1991-01-30

1994-04-26

Housel, James C.

Chemistry: analytical and immunological testing

Including chromatography

Utilizing paper or thin layer plate

73 6155, 2101983, 210658, 436161, G01N 3094, G01N

Patent

active

053066456

ABSTRACT:
Methods of conducting Thin Layer Chromatography (TLC) involving using a TLC plate having sample spots and including no support material, placing the TLC plate on a porous substrate, and allowing solvent to move upwardly from the porous substrate toward the TLC plate by capillary action to be vaporized from the surface of the TLC plate, thereby concentrating the sample spots developed in the thin layer on the surface of the TLC plate.

REFERENCES:
patent: 3843053 (1974-10-01), Thoden
patent: 4508624 (1985-04-01), Nagata
Nature; "Quantitative Spot Test on Filter paper and Examples of its Application"; Aug. 6, 1952, vol. 170, pp. 422 Tatsuo Kari Yone.
Beauchemin et al., Quantitative Analysis Of Diazonaphthoquinones By Thin-Layer Chromatographic/Diffuse Reflectance Infrared Fourier Transform Spectrometry, Anal. Chem., 61, 615-618.
Shafer et al., Sample Transfer Accessory For Thin-Layer Chromatography/Fourier Transform Infrared Spectrometry, Anal. Chem., 1986, 58, 2708-2714.
Chalmers et al., Characterization Of Thin-Layer Chromatographically Separated Fractions By Fourier Transform Infrared Diffuse Reflectance Spectrometry, Anal. Chem., 1987, 59, 415-418.

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