Method for determining gallium content in bauxite by alkali fusion coprecipitation separation-inductively coupled plasma mass spectrometry

• Main Authors: ZHANG ANFENG, YANG BOWEI, JIN XIUQI, PANG WENPIN
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention belongs to the technical field of chemical analysis, and particularly relates to a method for determining the gallium content in bauxite through alkali fusion coprecipitation separation-inductively coupled plasma mass spectrometry. The determination method provided by the invention comprises the following steps: mixing bauxite and strong alkali, and carrying out alkali fusion to obtain a melt; mixing the melt, an ammonium hydroxide-ammonium salt buffer solution and aluminum hydroxide, and extracting to obtain an extracting solution; acidifying the extract liquid, adjusting the pH value to 9.8-10.0, precipitating, and performing solid-liquid separation to obtain a solid pure product; carrying out acid dissolution on the solid pure product to obtain a to-be-detected solution; and carrying out inductively coupled plasma mass spectrometry test on the to-be-tested liquid to obtain the content of the gallium element in the bauxite. According to the method, after the sample to be detected is subjected