A1 Journal article (refereed)
Determination of mercury at picogram level in natural waters with inductively coupled plasma mass spectrometry by using 3D printed metal scavengers (2019)
Kulomäki, S., Lahtinen, E., Perämäki, S., & Väisänen, A. (2019). Determination of mercury at picogram level in natural waters with inductively coupled plasma mass spectrometry by using 3D printed metal scavengers. Analytica Chimica Acta, 1092, 24-31. https://doi.org/10.1016/j.aca.2019.09.075
JYU authors or editors
Publication details
All authors or editors: Kulomäki, Suvi; Lahtinen, Elmeri; Perämäki, Siiri; Väisänen, Ari
Journal or series: Analytica Chimica Acta
ISSN: 0003-2670
eISSN: 1873-4324
Publication year: 2019
Volume: 1092
Pages range: 24-31
Publisher: Elsevier
Publication country: Netherlands
Publication language: English
DOI: https://doi.org/10.1016/j.aca.2019.09.075
Publication open access: Not open
Publication channel open access:
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/66270
Abstract
The determination of ultra-trace concentrations of Hg in natural water samples via preconcentration using 3D printed metal scavenger technique followed by inductively coupled plasma mass spectrometry (ICP-MS) was developed. The determination of Hg in certified reference material ERM-CA615 (groundwater) was performed with high accuracy and precision resulting in recovery of 100 ± 3% and RSD <2.5%, respectively. Selective laser sintering (SLS) 3D printing was used to fabricate the scavengers using a mixture of polyamide-12 powder with thiol-functionalized silica. The preconcentration procedure is based on the adsorption of Hg on the scavenger and followed by elution of the preconcentrated Hg from the filter with 0.3% thiourea in 8% HCl prior to its determination by ICP-MS. A preconcentration factor of 92.8 can be achieved by filtering 495 mL of water followed with the elution step. Very low instrumental detection limit and method detection limit were obtained resulting in 0.013 and 0.037 ng L−1, respectively. The method was applied successfully for the determination of Hg in different lake and river water samples. The developed method is the first preconcentration method enabling simple and accurate determination of Hg in pg L−1 concentrations in natural waters with ICP-MS.
Keywords: mercury; spectrometry; harmful substances; water; water systems; 3D printing
Free keywords: mercury; inductively coupled plasma mass spectrometry; ultra-trace concentration; preconcentration; 3D printing; natural water
Contributing organizations
Related projects
- New ways to solve the mercury problem in inland waterways – Development of determination and sampling methods for methylmercury
- Kulomäki, Suvi
- Jenny and Antti Wihuri Foundation
Ministry reporting: Yes
VIRTA submission year: 2019
JUFO rating: 2