Validation of a Sulfuric Acid Digestion Method for Inductively Coupled Plasma Mass Spectrometry Quantification of TiO2 Nanoparticles

A consistent analytical method incorporating sulfuric acid (H 2 SO 4 ) digestion and ICP-MS quantification has been developed for TiO 2 quantification in biotic and abiotic environmentally relevant matrices. Sample digestion in H 2 SO 4 at 110°C provided consistent results without using hydrofluoric...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2018-06, Vol.100 (6), p.809-814
Main Authors: Watkins, Preston S., Castellon, Benjamin T., Tseng, Chiyen, Wright, Moncie V., Matson, Cole W., Cobb, George P.
Format: Article
Language:English
Subjects:
Acid digestion
Animal tissues
Aquatic Pollution
Digestion
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Hydrofluoric acid
Inductively coupled plasma mass spectrometry
Mass spectrometry
Mass spectroscopy
Nanoparticles
Periphyton
Pollution
Soil Science & Conservation
Sulfuric acid
Titanium dioxide
Waste Water Technology
Water analysis
Water Management
Water Pollution Control
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Summary:A consistent analytical method incorporating sulfuric acid (H 2 SO 4 ) digestion and ICP-MS quantification has been developed for TiO 2 quantification in biotic and abiotic environmentally relevant matrices. Sample digestion in H 2 SO 4 at 110°C provided consistent results without using hydrofluoric acid or microwave digestion. Analysis of seven replicate samples for four matrices on each of 3 days produced Ti recoveries of 97% ± 2.5%, 91 % ± 4.0%, 94% ± 1.8%, and 73 % ± 2.6% (mean ± standard deviation) from water, fish tissue, periphyton, and sediment, respectively. The method demonstrated consistent performance in analysis of water collected over a 1 month.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-018-2336-2