Inductively coupled plasma mass spectrometry (ICP-MS) is a highly sophisticated multi-element analytical technique that is increasingly being used for trace analysis in various industries including analytical laboratories. The ICP-MS technique is capable of analysis down to sub parts-per-trillion (ppt) detection limits whereby the lowest detection limits can be achieved only in a cleanroom environment. Because water is used early in tests for trace elemental analysis with ICP-MS, it is obvious that any contamination from the water can compromise an entire analysis. Therefore, the water used must be of a high analytical grade quality (e.g., ASTM Type I water). The objective of the analytical test series described below is to ensure that the ultrapure water generated by the arium pro UV water system has a high purity level (in this case, free of all nondetectable metal elements) and can be used without any problems for trace analysis of elements performed with ICP-MS devices…