- 2 November 2006 -

Whatman filters suitable for heavy metal

Whatman's GD/XP filters have been independently verified by Katahdin Analytical Services, Inc, a US-based environmental laboratory, as effective filtration devices for environmental and industrial testing.

The analysis performed by Katahdin found that Whatman GD/XP filters have a very low inorganic ion background, which ensures the integrity of samples during the filtration process. To conduct the study, Katahdin passed 100 mL of dilute nitric acid through a GD/XP syringe filter and measured the levels of 23 target analyses using ICP-MS and Environmental Protection Agency-approved protocols. The resulting data showed minimal presence and retention of metals on the filter.

"With these results, scientists performing inorganic ion analysis can be sure that their samples will not be compromised during the filtration process," said Martin Tricarico, vice president of business development, Whatman. "The Katahdin study confirms that GD/XP filters are reliable and effective for testing environmental and industrial samples."

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