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Quality control parameters and acceptance criteria have not been well established for trace metals speciation analyses which displaces the responsibility on the laboratory. At Applied Speciation we strive to identify as many method limitations as possible prior to application to client submitted samples. Our scientists also understand that not all method limitations can be ascertained due to the complex world we live in; therefore, proper quality control must be performed.

Quality control for trace metals speciation analyses is considerably different than standard trace metals analyses. The performance of all preparatory and analytical methods must be proven not only for the target molecules but also the non-target molecules. Variations in sample matrices may induce species coelution or species conversion. Matrix spikes, matrix duplicates, laboratory control samples, preparatory blanks, analytical spikes, analytical duplicates, and certified reference materials (pending availability) are some of the quality control parameters which accompany all of our trace metals speciation analyses to validate generated results. Inclusion of appropriate quality control measures can also elucidate the equilibrium of the sample matrix (which molecular form the matrix favors) to identify how the different species interact with the different components of the sample.

The importance of proper quality control for trace metals speciation analyses cannot be understated. Without the benefit of promulgated methods quality should be on the forefront of any clients mind when inquiring about trace metals speciation analyses. Feel free to contact us if you would like to discuss the importance of quality control fro trace metals speciation analyses.