Chemistry: analytical and immunological testing – Metal or metal containing – Li – na – k – rb – cs – fr – be – mg – ca – sr – ba – ra
Patent
1990-07-25
1991-12-31
Hill, Jr., Robert J.
Chemistry: analytical and immunological testing
Metal or metal containing
Li, na, k, rb, cs, fr, be, mg, ca, sr, ba, ra
210658, 436 73, 436162, G01N 3090, G01N 3320
Patent
active
050772210
ABSTRACT:
A chemical analysis method for indirect detection thin layer chromatography of cations that provides a rapid indication of the amount and type of cation present with minimal equipment requirements. The method includes four steps. The first step is to equilibrate a thin layer cation exchange chromatography plate with a color-forming cation, such as with copper II, to form a prepared plate. The second step is to deposit a sample on the prepared plate to form a spotted plate, the sample containing a cation of interest, such as sodium I. The third step is to develop the spotted plate with a liquid solution containing the color-forming cation, such as a solution of copper II ions, to chromatograph the cation of the sample to form a developed plate. The last step is to expose the developed plate to a chemical agent, such as ammonia, to visualize the color-forming cation by a chemical reaction between the chemical agent and the color-forming cation to form a colored species, such as the blue colored copper II/ammonia complex. When this is done, the chromatographed sample cation is apparent as region of less intense color in a field of color on the plate generated by the colored species.
REFERENCES:
patent: 4257776 (1981-03-01), Porter et al.
patent: 4414842 (1983-11-01), Small et al.
patent: 4744952 (1988-05-01), Ogita
Ma et al. Chemical Abstracts, vol. 108, Abstract No. 108:123532f, 1988.
Chromatography, J. of Chromatography Library, 22A, Edited by E. Heftmann, Elsevier Scientific Publ. Co., 1983.
Miller, Jr. Theodore E.
Poon Melanie C.
Hill Jr. Robert J.
Stevens Timothy S.
The Dow Chemical Company
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