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Posts Tagged ‘ICP-MS’

Cadmium Exposure and Testing

Monday, May 3rd, 2010

By Elisabeth Lutanie, Ph.D.Cadmium Exposure and Testing

Cadmium is a transitional metal that can have harmful cumulative effects on the human body. This article explains what cadmium is, where it comes from, how people get exposed to it, and how laboratories can test for it.

What is Cadmium?

Cadmium (Cd, atomic number 48) is a silver- or bluish-white metal in the group 12 of the periodic table. It is usually found with an oxidation state of +2 and combined with other elements such as oxygen (cadmium oxide), chlorine (cadmium chloride), or sulfur (cadmium sulfate, cadmium sulfide). It is also a cumulative poison associated with an array of syndromes such as renal dysfunction, reproductive toxicity, and bone defects. It is classified as a human carcinogen (Group 1) by the International Agency for Research on Cancer [1], and as a probable human carcinogen (Group B1) by the Environmental Protection Agency (EPA).  


Ultra-trace Metals Determinations using Reductive Precipitation and ICP-MS

Saturday, July 26th, 2003

Ultra-trace-Metals-Determinations-using-Reductive-Precipitation-and-ICP-MSColumbia Analytical Services’ Kelso laboratory has continued the development of analytical techniques for pre-concentration and chemical separation of trace metals in saline aqueous samples using reductive precipitation followed by inductively coupled plasma-mass spectroscopy (ICP-MS). This technique replaces conventional techniques for the analysis of trace metals in complex aqueous matrices such as sea water where matrix problems prevent the ability to achieve desired low levels of detection. Detection limits for various metals of interest using these techniques are displayed in the table to the right. Details of this procedure were presented at the recent National Environmental Monitoring Conference (NEMC) held July 21-24 in Arlington, Virginia. The full abstract follows.