แอปพลิเคชัน

1 ภาพรวมวิธี

The sample is heated and dissolved in a quartz beaker with mixed sulfuricphosphoric acid. Using an airacetylene flame, the absorbance of sodium oxide is measured at 589.0 nm on an atomic absorption spectrophotometer. Within a certain concentration range, the absorbance of sodium is proportional to its content, and quantification is carried out by comparison with the standard series.

2 ขอบเขตการใช้งาน

This method is applicable to the determination of sodium oxide content in alumina powder.

3 Reference Basis

GB/T 6609.5-2004, Methods for chemical analysis and physical property testing of alumina — Determination of sodium oxide content, Method 2

4. อุปกรณ์และสารเคมี

4.1 เครื่องมือและอุปกรณ์

4.1.1 Testing Instruments