6533b85ffe1ef96bd12c241b

RESEARCH PRODUCT

Trace element determination in sediments: a comparative study between neutron activation analysis (NAA) and inductively coupled plasma-mass spectrometry (ICP-MS)

ÁNgel Morales-rubioAmparo SalvadorM. J. MarquésM. De La Guardia

subject

chemistry.chemical_compoundAshingChemistryAnalytical chemistryTrace elementSample preparationNeutron activation analysisMass spectrometryInductively coupled plasma mass spectrometrySpectroscopyAnalytical ChemistryNeutron activationLithium metaborate

description

An inductively coupled plasma-mass spectrometry (ICP-MS) method has been employed for trace element determination in five real sediment samples and a standard reference material. These samples were mineralized by dry ashing at 550°C and fused at 1100°C for 30 min with lithium metaborate. Dissolved samples were measured by a semiquantitative methodology with external calibration and with Rh as an internal standard. More than 50 elements have been measured. As a reference technique, a direct analysis of the solid samples was carried out by neutron activation analysis. Results obtained by ICP-MS have been compared with those obtained by neutron activation analysis (NAA) by applying the paired t-test to compare results of some elements such as: Ti, V, Mn, Fe, Zn, As, Co, Rb, Ba and Cs.

https://doi.org/10.1016/s0026-265x(00)00051-5