Abstract
Fluorescent X-ray spectrometry has been developed for the-rapid analysis of fishery preducts. Samples of fishery preducts were hemogenized with a Patter's homegenizer and dried under an infrared lamp in a draft-chamber. After pulverized by mixer-mill, a portion of sample was compressed at 15 t/cm2, and subjected to the determination of metal elements by fluorescent X-ray spectrometry, The intensity ratio of K. or L. line of the e!ements to be analyzed to scattered lines near the fluorescent line was used to compenzation of matrix effect of fluorescent X-ray. The standard deation of ana1ytical data for each: metals was within 5%. The recoveries of cadmium, lead, and chromium, obtained by adding 20 ptg/g of these nietals were 95.0-1O6.0%, 93.5-101.5%. and 96.0-1O5.0% respectively. Detection limit was O.2-O.5ptg/g (fresh sample, measurement time; 10-1OOsec). This value can be improved by the elongation of measurement time. The results obtained by the proposed method agreed almost with those obtained by atomic absorption analysis, while pretreatent procedureof this method was far more rapid and simple than any other conventional ones.
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