Patent ID: 9267896
Filing Date: 2016-02-23
CPC Classification: G01N

Claim Text:
1. A method of determining a concentration of uranium comprising: a) a primary measuring step of adding an oxidant composition to a detection target sample to thereby prepare an oxidant added sample, and then measuring luminescence intensity or luminescence attenuation of uranium (VI) of the oxidant added sample, wherein the oxidant composition includes monopersulfate or ozone; b) a secondary measuring step of adding different volumes of standard solution containing uranium (VI) having a predetermined concentration to a plurality of oxidant added samples, respectively, to thereby prepare each standard solution added sample containing the standard solution added thereto, and then measuring luminescence intensity or luminescence attenuation of uranium (VI) contained in each standard solution added sample; and c) a calculating step of calculating a concentration of uranium (VI) contained in the detection target sample by a standard addition method based on the primary and secondary measurements.