title: Autoclave decomposition method for metals in soils and sediments.
abstract: Leaching of partially leached metals (Fe, Mn, Cd, Co, Cu, Ni, Pb, and Zn) was done using autoclave technique which was modified based on EPA 3051A digestion technique. The autoclave method was developed as an alternative to the regular digestion procedure passed the safety norms for partial extraction of metals in polytetrafluoroethylene (PFA vessel) with a low constant temperature (119.5° ± 1.5°C) and the recovery of elements were also precise. The autoclave method was also validated using two Standard Reference Materials (SRMs: Loam Soil B and Loam Soil D) and the recoveries were equally superior to the traditionally established digestion methods. Application of the autoclave was samples from different natural environments (beach, mangrove, river, and city soil) to reproduce the recovery of elements during subsequent analysis.
authors.affiliation: Escuela Nacional de Ciencias Biológicas, Laboratorio Central de Instrumentación, Instituto Politécnico Nacional (IPN), Prol. de Manuel M Carpio y Plan de Ayala, Col. Sto. Tomas, Del. Miguel Hidalgo, C.P.11340, Mexico, DF, México. mnavarretel@hotmail.com
authors.forename: M
authors.initials: M
authors.lastname: Navarrete-López
authors.forename: M P
authors.initials: MP
authors.lastname: Jonathan
authors.forename: P F
authors.initials: PF
authors.lastname: Rodríguez-Espinosa
authors.forename: J A
authors.initials: JA
authors.lastname: Salgado-Galeana
mesh_terms: D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D019216:Metals, Heavy / Q000032:analysis / Q000302:isolation & purification*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis / Q000302:isolation & purification*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical