Alkaline solubilization of biological materials for trace element analysis by electrothermal atomic absorption spectrometry

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DOIResolve DOI: http://doi.org/10.1039/a906942i
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TypeArticle
Journal titleAnalyst
ISSN0003-2654
Volume124
IssueDecember 12
Pages18431846; # of pages: 4
AbstractAn alternative method to acid digestion is presented for the preparation of marine biological tissues and botanical samples for trace metal determination by ETAAS. Samples were solubilized using a methanolic solution of tetramethylammonium hydroxide (TMAH), either overnight at room temperature or by the application of heat and/or ultrasonic agitiation. Following dilution with water, aliquots were sampled into a graphite furnace using a conventional autosampler. External calibration was used for all analyte determinations. Limits of detection, characteristic mass and precision are reported for copper, cadmium, nickel, lead, manganese and chromium. Measured concentrations are in satisfactory agreement with certified values for the biological reference materials DORM-2, DOLT-2, TORT-2 and BCR 060. Samples prepared with TMAH can be stored for up to 3 years at room temperature without any change in analyte concentrations.
Publication date
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedNo
Identifier10306407
NRC number190
NPARC number8899445
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Record identifier559a462b-1015-4157-b6f6-e3d0c6df0089
Record created2009-04-22
Record modified2016-05-09
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