1 Обзор метода
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. Область применения
This method is applicable to the determination of lead in graphite powder.
3 Reference Basis
GB/T 24533-2009
4. Приборы и реагенты
4.1 Инструменты и оборудование
4.1.1 Testing Instruments
| Нет, нет. | Имя | Количество | Технические требования | Аксессуары |
|---|---|---|---|---|
| 1 | Спектрофотометр атомной абсорбции графитной печи | 1 набор | — | Lead Hollow-Cathode Lamp |
| 2 | Argon | 1 цилиндр | Purity ≥99.99% | — |
| 3 | Система циркулирующей охлаждающей воды | 1 набор | Rated pump flow rate: 3.5 L/min | — |
