1 方法概要
After microwave digestion, the sample solution is injected into the graphite furnace of the atomic absorption spectrophotometer. Following electrothermal atomization, it absorbs the resonance line at 283.3 nm. Within a certain concentration range, the absorbance is proportional to the lead content, and quantification is performed by comparison with the standard series.
2 適用範囲
This method is applicable to the determination of lead in graphite powder.
3 Reference Basis
GB/T 24533-2009
4．器具および試薬
4.1計器設備
4.1.1 Testing Instruments
| いや | 名前 | 量 | 技術要件 | アクセサリー |
|---|---|---|---|---|
| 1 | グラファイト炉の原子吸収分光度計 | 1セット | — | Lead Hollow-Cathode Lamp |
| 2 | Argon | 1つのシリンダー | Purity ≥99.99% | — |
| 3 | 循環冷却水システム | 1セット | Rated pump flow rate: 3.5 L/min | — |
