6533b7d2fe1ef96bd125dfa2
RESEARCH PRODUCT
On-line microwave oven digestion flame atomic absorption analysis of solid samples
Amparo SalvadorMarcela BurgueraJosé Luis BurgueraM. De La GuardiaV. Carbonellsubject
Detection limitChemistryMicrowave ovenAnalytical chemistryBiochemistryAnalytical Chemistrylaw.inventionDigestion (alchemy)lawSlurryEnvironmental ChemistrySample preparationAtomic absorption spectroscopySpectroscopyFiltrationSludgedescription
Abstract A manifold has been developed for on-line microwave oven digestion and flame atomic absorption spectrometric (FAAS) determination of metallic elements in solid samples. The use of a closed flow system permits sample treatment before analysis by FAAS, the direct injection of slurries avoids a filtration step and the interconnection of two conventional rotary injection valves allows the rapid introduction of samples and standards. The determination of lead in sewage sludge was employed as a test system for the proposed on-line sample digestion manifold. The procedure has a limit of detection of 0.2 μg Pb g−1.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-01-01 | Analytica Chimica Acta |