GB/T 8208-2007 in English

本标准规定了煤中镓的碱熔融—萃取分离—罗丹明Ｂ分光光度法和酸熔融—萃取分离—罗丹明B分光光度法的方法提要、试剂材料、仪器设备、试验步骤、结果表述和方法精密度等。
本标准适用于褐煤、烟煤和无烟煤，测量范围为(1~100)μg/g。

Scope

This standard specifies the method summary, reagent materials, instruments and equipment, test procedures, result expression and methods of alkali fusion-extraction separation-rhodamine B spectrophotometry and acid fusion-extraction separation-rhodamine B spectrophotometry of gallium in coal precision etc. This standard is applicable to lignite, bituminous coal and anthracite, and the measurement range is (1-100) μg/g. For arbitration analysis, alkali fusion-extraction separation-rhodamine B spectrophotometry should be used.