Paper Title:
High Throughput Speciation Analysis of Mercury in Water Environment by Short Column Capillary Electrophoresis On-Line Coupled with Inductively Coupled Plasma Mass Spectrometry
  Abstract

A method for mercury high throughput rapid speciation analysis was built by short column capillary electrophoresis (SC-CE) coupled with inductively coupled plasma mass spectrometry (ICP-MS). A micromist nebulizer was employed to increase the nebulization efficiency and a laboratory-made removable SC-CE-ICP-MS interface on the basis of cross design was applied to alleviate buffer contamination of ICP-MS. In less than 60 s methylmercury (MeHg(I)) and inorganic mercury (Hg(II)) were separated in a 16 × 75 μm i.d. short column fused-silica capillary at 21 kV, while a mixture of 30 mmol/L boric aicd + 5% (v/v) CH3OH (pH=8.60) acted as running electrolyte. The precisions (RSD, n=5) of migration time and peak area for MeHg(I) and Hg(II) were in the range of 1.4-2.6% and 3.3-3.4%, respectively. The limits of detection (3σ) mercury species were 9.7 and 12.0 μg/L, respectively. The recoveries for Hg(II) MeHg(I) were in the range of 96-107% and 99-105%.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 2: Powder Metallurgy and Ceramic Forming
Edited by
Wu Fan
Pages
790-795
DOI
10.4028/www.scientific.net/AMR.383-390.790
Citation
B. H. Li, B. J. Tian, "High Throughput Speciation Analysis of Mercury in Water Environment by Short Column Capillary Electrophoresis On-Line Coupled with Inductively Coupled Plasma Mass Spectrometry", Advanced Materials Research, Vols. 383-390, pp. 790-795, 2012
Online since
November 2011
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