ICP Quality Issues

Purity

Purity becomes an issue when using starting materials of single element blends to prepare multi-element blends. The degree of importance increases as the relative order of magnitude of the components increases. Known purity and hopefully very clean materials are critical in the execution of ICP-OES spectral interference studies. These studies typically involve the aspiration of a 1000 µg/mL solution of a single element while collecting the spectral regions of analytes that may be interfered with.

Inorganic Ventures' laboratory has purchased many materials claiming a purity of 5 to 6-9's. However, it's never a bad idea to confirm a manufacturer's claims. For more information regarding purity considerations, please consult the following online articles:

• Environmental Contamination
• Contamination From Reagents
• Contamination From the Analyst and Apparatus

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