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Sintered chromatographic plate and method for producing the same

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专利汇可以提供Sintered chromatographic plate and method for producing the same专利检索,专利查询,专利分析的服务。并且A plate or thin-layer chromatographic element made by coating a refractory and chemically-stable support with a dispersion of fine particles of chromagtographically-active inorganic adsorbent, fine particles of a refractory and acid-resistant fluorescent pigment of red luminescence and powdered fluorescent glasses of blue and green luminescences in a liquid dispersing medium, the mixing ratio of said fluorescent glasses and fluorescent pigment is so determined that the obtained mixture may have a blend of the luminescences of the three fundamental colors, that is, a pure-white luminescence upon excitation by means of an ultraviolet irradiation, removing the dispersing medium, and heating the coated layer to make it adherent and thereby to form a continuous, coherent and porous sintered-layer. Particles of the powdered glass contained in said sintered-layer hold a uniform distribution of the adsorbent particles and fluorescent pigment particles, and form firm bondings between each other and with the surface of the support without any detriment to the activity of the spots The element enables the discrimination between two contiguous spots of a chromatogram of colorless compounds to be discriminated, each of which has at least one absorption band in the ultraviolet region and the corresponding quenched emission on the thin-layer capable of emitting a pure-white luminescence in the absence of the chromatogram.,下面是Sintered chromatographic plate and method for producing the same专利的具体信息内容。

  • 2. A chromatographic element as claimed in claim 1, wherein said powdered glass contains uranium glass having green luminescent property.
  • 3. A chromatographic element as claimed in claim 2, wherein between about 45 and about 70 weight percent of said uranium glass is incorporated in the sintered-layer.
  • 4. A chromatographic element as claimed in claim 1, wherein said powdered glass contains lead-silicate glass having blue luminescent property.
  • 5. A chromatographic element as claimed in claim 4, wherein between about 9 and about 15 weight percent of said lead-silicate glass is incorporated in the sintered-layer.
  • 6. A chromatographic element as claimed in claim 1, wherein said refractory and acid-resistant fluorescent pigment of red luminescent property is selected from the group consisting of Yytrium vanadate, Gadolinium vanadate, Yytrium oxide and Gadolinium oxide.
  • 7. A chromatographic element as claimed in claim 6, wherein between about 1 and about 5 weight percent of said fluorescent glass of red luminescence is incorporated in the sintered-layer.
  • 8. A chromatographic element as claimed in claim 1, wherein said chromatographically-active inorganic adsorbent is selected from the group consisting of silica gel, alumina, diatomaceous earth, magnesium silicate, and porous high silicate glass powder.
  • 9. A chromatographic element as claimed in claim 1, wherein said support material is glass.
  • 10. A chromatographic element as claimed in claim 1, wherein said support material is metals.
  • 11. A chromatographic element as claimed in claim 1, wherein said support material is ceramic materials.
  • 12. A chromatographic element as claimed in claim 1, wherein the ratio of the sum of the powdered glasses and the fluorescent pigment to the adsorbent is between about 1:1 and about 30:1 by weight.
  • 13. A chroMatographic element as claimed in claim 1, wherein the ratio of the sum of the powdered glasses and the fluorescent pigment to the adsorbent is between about 2:1 and about 4:1 by weight.
  • 14. A chromatographic element as claimed in claim 1, wherein the sintered-layer has a thickness of from about 150 Mu to about 2 mm.
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