6533b854fe1ef96bd12adeaf
RESEARCH PRODUCT
Atomic absorption spectrometric determination of molybdenum in lubricating oils with use of emulsions
M. De La Guardia CirugedaJ.b. Beferull BlascoA. Salvador Carreñosubject
Detection limitChemistryInorganic chemistrychemistry.chemical_elementBiochemistryAnalytical Chemistrylaw.inventionMatrix (chemical analysis)chemistry.chemical_compoundAcetylenePulmonary surfactantNitric acidMolybdenumlawEnvironmental ChemistryAqua regiaAtomic absorption spectroscopySpectroscopydescription
Abstract Samples (0.1 g) containing molybdenum disulphide are digested with aqua regia or with a (1 + 1) hydrofluoric/nitric acid mixture, without complete destruction of the matrix, and the molybdenum is determined in an air/acetylene flame, after emulsification with a non-ionic surfactant (Nemol K-39). The detection limit is ca. 30 μg Mo g−1, and the r.s.d. is 2.9% for 6 analyses of a sample containing 6.5 mg Mo g−1.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1985-01-01 | Analytica Chimica Acta |