1 Descripción general del método
After microwave digestion, the sample solution is injected into the graphite furnace of the atomic absorption spectrophotometer. After electrothermal atomization, it absorbs the resonance line at 283.3 nm. Within a certain concentration range, the absorbance value is proportional to the lead content, and quantification is performed by comparison with the standard series.
2 Ámbito de aplicación
This method is applicable to the determination of lead in olive oil.
3 Reference Basis
GB 5009.12‑2017
4. Instrumentos y reactivos
4.1 Instrumentos y equipos
4.1.1 Testing Instruments
| ¡No! No! | Nombre | Cantidad | Requisito técnico | Accesorios |
|---|---|---|---|---|
| 1 | Espectrofotómetro de absorción atómica del horno de grafito | 1 conjunto | — | Lead Hollow‑Cathode Lamp |
| 2 | Argon | 1 cilindro | Purity ≥99.99% | — |
| 3 | Sistema de agua de enfriamiento circulante | 1 conjunto | — | — |
