Multi-elemental analysis of marine sediment reference material MESS-3: one-step microwave digestion and determination by high resolution inductively coupled plasma-mass spectrometry (HR-ICP-MS) |
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Authors: | Vibor Roje |
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Institution: | (1) Department of Chemistry, American University, Washington, DC 20016, USA |
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Abstract: | Single-step microwave digestion methods using four different acidic dissolving reagents were investigated with the main objective
to obtain a simple, rapid method for multi-elemental analysis of marine sediment samples by high resolution inductively coupled
plasma-mass spectrometry (HRICP-MS), especially for environmental studies. Closed-vessels microwave digestion procedures were
carried out using the reagents as follows: HNO3, mixture of HNO3-HCl (φ
r = 9: 1), aqua regia, and mixture of HNO3-HCl-HF (φ
r = 8: 1: 1). The elements analyzed were: Al, As, Ba, Be, Bi, Cd, Co, Cr, Cu, Fe, K, Li, Mn, Mo, Na, Ni, Pb, Sb, Sn, Sr, Ti,
Tl, V, and Zn. Good recoveries were established for many of the metals analyzed even when only nitric acid was employed. However,
for a good recovery of Sb and Tl, aqua regia should be employed. |
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Keywords: | |
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