Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,... – Inorganic standards or controls
Patent
1993-03-22
1994-09-06
Housel, James C.
Chemistry: analytical and immunological testing
Composition for standardization, calibration, simulation,...
Inorganic standards or controls
436 8, 2524081, G01N 3320
Patent
active
053447794
ABSTRACT:
A method for the production of a standard oxide sample for X-ray fluorescence analysis of an impurity element contained in an inorganic compound. The standard oxide sample is produced by accurately weighing a high-purity compound of the type of the main-component element of the inorganic compound, dissolving the weighed compound in an acid, adding an element of the type of the impurity element to be subjected to determination in a prescribed amount to the acid solution, evaporating the resultant solution to dryness, and heating the dry residue of evaporation.
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Hirabayashi Masayuki
Ihara Hideo
Kaneko Hiroko
Kaneko Keiji
Agency of Industrial Science & Technology, Ministry of Internati
Freed Rachel Heather
Housel James C.
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