| 摘要 |
PURPOSE:To make stable analysis with an automatic analyzer by throwing a granular fertilizer to be inspected into an impact grinder. CONSTITUTION:The granular fertilizer 1 is first pulverized by using the impact grinder 2 in <=60% humidity. The pulverized powder sample 3 is transferred into a sample vessel 5 and the weight thereof is finely measured. The solvent of the amt. calculated by a predetermined equation in accordance with the finely weighed value is added to the vessel 5 and an agitator 10 is inserted therein to agitate and dissolve the fertilizer. The dissolved soln. is filtered by using a filter 11. The filtrate 13 obtd. by the filtration is introduced into the automatic analyzer 14 by which the automatic analysis is made. The respective stages are controlled by a control device 7 so as to be automatically progressed.
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