1 Methodenblick
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 Anwendungsbereich
This method is applicable to the determination of lead in olive oil.
3 Reference Basis
GB 5009.12‑2017
4 Instrumente und Reagenzien
4.1 Instrumente und Ausrüstung
4.1.1 Testing Instruments
| - Nein. - Nein. | Name | Menge | Technische Anforderung | Zubehör |
|---|---|---|---|---|
| 1 | Graphitofen Atomabsorption Spektrophotometer | 1 Satz | — | Lead Hollow‑Cathode Lamp |
| 2 | Argon | 1 Zylinder | Purity ≥99.99% | — |
| 3 | Zirkulierendes Kühlwassersystem | 1 Satz | — | — |
