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2. 发明授权

US4044116A Method for the complete dissolution of mineral samples 失效
标题翻译：矿物样品完全溶解的方法
公开(公告)号：US4044116A
公开(公告)日：1977-08-23
申请号：US692720
申请日：1976-06-04
申请人： Kent J. Eisentraut , Shib C. Chattoraj
发明人： Kent J. Eisentraut , Shib C. Chattoraj
IPC分类号： B01F1/00 , C22B3/06 , C22B34/32 , C22B35/00
CPC分类号： C22B3/06 , B01F1/0005 , C22B34/32 , C22B35/00 , Y02P10/234 , Y10T436/25125
摘要： A method for the complete dissolution of "hard to dissolve" mineral samples, such as lunar and geological samples, wherein milligram amounts of a sample in particulate form is successively mixed while heating with small amounts of hydrofluoric acid and a mixture of sulfuric acid and distilled, demineralized water. Heating of the resulting solution is continued until its volume is reduced to about 2 milliliters after which the solution is rapidly cooled to room temperature. After adding a small amount of distilled, demineralized water, it is heated while swirling to provide a crystal clear solution. When dissolving lunar or other samples containing beryllium and chromium, an amount of a solution of sodium hydroxide is added to the crystal clear solution that is sufficient to bring the pH of the solution to about 2.5. The method makes it possible to completely dissolve mineral samples rapidly and efficiently for subsequent accurate chemical analysis.
摘要翻译：一种完全溶解“难溶解”的矿物样品（如月球和地质样品）的方法，其中将毫克数的颗粒状样品连续混合，同时用少量氢氟酸和硫酸和蒸馏的混合物加热，软化水。继续加热所得溶液直到其体积减少至约2毫升，然后将溶液快速冷却至室温。加入少量蒸馏水后，加热，同时旋转，提供清澈透明的溶液。当溶解含有铍和铬的月球或其他样品时，将一定量的氢氧化钠溶液加入到足以使溶液的pH达到约2.5的透明溶液中。该方法可以快速有效地完全溶解矿物样品，以便后续的精确化学分析。

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