硫脲介质-石墨炉原子吸收光谱法测定化探样品中微量银
Determinations of Micro-amount of Silver in Geochemical Exploration Samples by Graphite Furnace Atomic Absorption Spectrometry in Thiourea Medium
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摘要: 样品经王水分解,硫脲提取,石墨炉原子吸收光谱法测定化探样品中的微量银.方法检出限为0.058 w/mL;精密度(RSD,n=6)为0.8%~5.4%;回收率为94%~105%.方法经国家一级标准物质验证,测定结果与标准值相符.