Fluorescence standards and their use

Details Fluorescence standards and their use Fluorescence standards and their use

G - Physics

01

N

G01N 21/27 (2006.01) B01L 3/00 (2006.01) G01J 1/58 (2006.01) G01N 21/64 (2006.01) G01T 1/36 (2006.01) G07D 7/12 (2006.01) G01K 11/32 (2006.01) G01N 23/223 (2006.01)

Patent

CA 2720041

The invention concerns fluorescence standards, and in particular fluorescence standards for calibrating optical detectors. According to the invention, a fluorescent mineral or mixtures of minerals are employed for use as a fluorescence standard. The fluorescent mineral can be a naturally occurring mineral or a synthetically produced mineral. Preferred fluorescent minerals for use as fluorescence standards are corundum, fluorite, turquoise, amber, zircon, zoisite, iolite or cordierite, spinel, topaz, calcium fluorite, sphalerite or zincblende, calcite or calcspar, apatite, scheelite or calcium tungstate, willemite, feldspars, sodalite, a uranium mineral, a mineral containing AI 3+, and in particular ruby and sapphire.

L'invention concerne des étalons de fluorescence et en particulier des étalons de fluorescence destinés à étalonner des détecteurs optiques. Comme étalons de fluorescence, l'invention utilise un minéral fluorescent ou des mélanges de minéraux fluorescents. Le matériau fluorescent peut être un matériau d'origine naturelle ou un minéral préparé par synthèse. Des minéraux fluorescents que l'on préfère utiliser comme étalons de fluorescence sont le corindon, la fluorite, le rouge turc, l'ambre jaune, le zirconium, la zoïsite, l'iolithe ou la cordiérite, le spinelle, la topaze, le fluorure de calcium, la sphalérite ou pseudogalène, la calcite, l'apatite, la schélite ou tungstène, la willémite, le feldspath, la sodalithe, un minéral d'uranium, un minéral contenant Al3+ et en particulier le rubis et le saphir.

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