1 Gambaran Umum Metode
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. Ruang Lingkup Penerapan
This method is applicable to the determination of lead in graphite powder.
3 Reference Basis
GB/T 24533-2009
4 Instrumen dan Reagen
4.1 Instrumen dan Peralatan
4.1.1 Testing Instruments
| Tidak, tidak. | Nama | Kuantitas | Persyaratan Teknis | Aksesoris |
|---|---|---|---|---|
| 1 | Spektrofotometer Penyerapan Atom Tungku Grafit | 1 set | — | Lead Hollow-Cathode Lamp |
| 2 | Argon | 1 silinder | Purity ≥99.99% | — |
| 3 | Sistem Air Pendinginan Bersirkulasi | 1 set | Rated pump flow rate: 3.5 L/min | — |
