High accuracy measurements of trace elements in drinking water by exact matching isotope dilution mass spectrometry (IDMS)

作者：Ng Sin Yee; Zou Aimei; Sim Lay Peng; Ding Yi; Yuen Kim Loong; Shin Richard Y C^*; Lee Tong Kooi

来源：International Journal of Mass Spectrometry, 2012, 321: 19-24.

DOI：10.1016/j.ijms.2012.05.008

• Exact matching isotope dilution mass spectrometry (IDMS), Sector field (SF)
• ICP-MS
• ICP-MS
• Water matrix
• Intercomparison

The accurate determination of trace elements in drinking water (nickel, cadmium and lead) has been achieved by adopting exact-matching isotope dilution mass spectrometry (IDMS) technique. The measurement uncertainty of the method was rigorously investigated and values with less than 2% combined uncertainty (k=2) were achieved for all 3 analytes. These results were submitted for an international intercomparison and were in excellent agreement with the Key Comparison Reference Value (KCRV).

• 出版日期2012-5-15