石油产品 中间燃份油中的铝和硅的测定 感应耦合等离子发射和原子吸收光谱法

[中文适用范围]： 该方法的原理是在干净的铂盆中加热称量的均质样品，通过燃烧除去可燃物质，最后通过加热除去碳，用四硼酸二锂/氟化锂熔剂熔化残余物，消解熔化的混合物溶于酒石酸和盐酸溶液中，用水稀释至刻度，用ICPES或AAS测定溶液。 该方法适用于铝浓度在 5 mg/kg 至 150 mg/kg 之间，硅浓度在 10 mg/kg 至 250 mg/kg 之间。 [外文原描述]： The principle of the method specified is heating a weighed quantity of homogenized sample in a clean platinum basin, removing the combustible material by burning, finally removing the carbon by heating, fusing the residue with a dilithium tetraborate/lithium fluoride flux, digesting the fused mixture in a solution of tartaric acid and hydrochloric acid, dilution to volume with water, measuring the solution by ICPES or AAS. The method is applicable for concentrations between 5 mg/kg and 150 mg/kg for aluminium and 10 mg/kg and 250 mg/kg for silicon.