PREPROCESSING METHOD AND SYSTEM FOR HIGH PRECISE ANALYSIS OF METAL IMPURITIES IN POWDER

摘要

The present invention relates to a preprocessing method and a system for the high precise analysis of metal impurities in powder. A plurality of magnets (11), having the N pole (11a) and the S pole (11b), are connected in parallel with each other. Parts of adjacent magnets (11), touching each other, comprise the same pole. A bipolar surface (10a), on which the N pole (11a) and the S pole (11b) are placed, are larger than an orthogonal surface (10b) placed in an orthogonal direction to the bipolar surface (10a). A yoke (14) is installed between the cent magnets (11). A heatproof coating layer (13) formed on the outer surface. A magnetic stick (10), including a floor separation member (12) installed at both ends, is mixed with powder to maximally attach metal impurities (21) and then dissolve the impurities in an acidic solution. Therefore, the present invention is capable of conducting high precision analysis by ppb unit by using an ICP analyzing device.;COPYRIGHT KIPO 2016