论文部分内容阅读
测定岩石中全硫常用的方法是把样品与Na_2CO_3及NaNO_3的混合物一起进行氧化熔融,冷却之熔融物水提过滤,滤波酸化,而此时以硫酸盐形式存在之硫,在借酸之凝聚移去硅酸之后使成BaSO_4沉淀析出。该法费时,而空白值又较高;我们还发现它对有机物含量高的物质不适合,因为在熔融时侵蚀铂容器。故对湿氧化的快速决进行了探讨。 湿氧化法曾用于测定黄铁矿中的硫,例如,先用
Determination of total sulfur in rock is commonly used method is to sample with Na_2CO_3 and NaNO_3 mixture with the oxidative melting, cooling the molten water filtration, filtration acidification, while the presence of sulfur in the form of sulphate in acid condensation After the silicic acid is precipitated into BaSO 4. The method is time consuming and the blanks are higher; we also find it unsuitable for substances with a high organic content because of the aggressiveness of platinum containers during melting. Therefore, the rapid oxidation of wet oxidation were discussed. Wet oxidation has been used to determine sulfur in pyrite, for example, first use