Title

Marine biological reference materials for methylmercury: analytical methodologies used in certification

Document Type

Article

Publication Date

1989

Publication Title

Fresenius' Zeitschrift für Analytische Chemie

Volume

333

Issue

6

First Page

641

Last Page

644

Abstract

The methylmercury concentrations in three existing marine biological certified reference materials - TORT-1, DORM-1 and DOLT-1 - are determined by gas chromatography with electron capture detection, cold vapour atomic absorption spectrometry and inductively coupled plasma mass spectrometry after selective isolation of methylmercury. Two such procedures were used. These and the three analytical techniques are evaluated and compared. The certified methylmercury concentrations are: TORT-1, 0.128 ± 0.014; DORM-1, 0.731±0.060; and DOLT-1, 0.080 ± 0.011 Μg Hg/g dry weight. © 1989 Springer-Verlag.