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Determination of Antimony, Tin, and Arsenic in Antimonial Lead Alloys by X-Ray Fluorescence

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Savings in man-hours of approximately 50% were gained with even greater reduction in elapsed time when fluorescent x-ray emission replaced classical wet methods to determine Sb (2%–7%), Sn (0.15%–0.75%) and As (0.05%–0.60%). No statistically significant differences were found in results, and scatter was less with the x-ray method. The problem of segregation in the sample was eliminated, and a surface of the required quality was obtained by a special method of sample preparation in which 5–20 ml of molten lead was poured into 1 liter of water, and the resulting granules were pressed to 95% density briquettes at 50 000 psi. The working curves, linear in the ranges stated, were established from alloys calibrated by the classical methods. Standard deviations were calculated from repeated x-ray determinations on a reference alloy (Sb: 5.89%±0.043; Sn: 0.36%±0.012; As: 0.175%±0.008).

Keywords: Analysis for Sb, Sn, As in antimonial lead alloys; Analytical method; X-ray emission

Document Type: Research Article


Affiliations: 1: Corporate Technical Group, Globe-Union Inc., Milwaukee, Wisconsin 53201; present address: Gould-National Batteries, Inc., Research Division, Minneapolis, Minn. 55414 2: Corporate Technical Group, Globe-Union Inc., Milwaukee, Wisconsin 53201 3: Corporate Technical Group, Globe-Union Inc., Milwaukee, Wisconsin 53201; present address: Westinghouse Electric Corp., Bettis Atomic Power Labs., West Mifflin, Pa. 15122

Publication date: September 1, 1969

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