| 摘要 |
PROBLEM TO BE SOLVED: To provide an analysis method, instrument, and kit for vanadium, the user of which can easily analyze a sample for vanadium to a trace quantity level with high accuracy in a short time, without using any special expensive instrument at a location where the user desires to analyze the sample. SOLUTION: The user carries the analysis kit 1 to a location, where the user wants to analyze a sample for vanadium and obtains a reactor 6 by opening a column 2, by cutting off both end sections of the column 2 at the location. Then the user introduces sample water to the reactor 6 through a sample water inlet path 11 and makes the water to flow down through the reactor 6. When the sample water is brought into contact with a cation exchange resin 3 in this manner, the resin 3 reacts with the water and is discolored, to form a discolored layer 14. The user finds the length of the discolored layer 14, by reading the length from the discoloration starting point 16 to the discoloration ending point 17 on a scale and determines the quantity of the vanadium, by finding the vanadium concentration corresponding to the length of the discolored layer 14 from a standard curve plotted in advance.
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