Description
PCI: Interlaboratory Comparison Program for Metals in Biological Matrices
Since 1979, this program has enabled participants to assess the accuracy of their analytical results for some substances, particularly heavy metals, with the use of biological samples that are not freeze-dried. Approximately, 70 laboratories participate in this program.
Participants receive five rounds every year, each containing three PTMs per analyte. Participants can use any analytical method. Some PTMs are shipped in duplicate in order to evaluate the analytical reproducibility.
Analytes available
Aluminum in Serum
Arsenic in Urine (Inorganic)
Arsenic in Urine (Total)
Bromide in urine
Cadmium in Blood
Cadmium in Urine
Chromium in Urine
Copper in Serum
Copper in Urine
Fluoride in Urine
Iodide in Urine
Lead in Blood
Lead in Urine
Manganese in Serum
Mercury in Blood
Mercury in Urine
Selenium in Serum
Selenium in Urine
Zinc in Serum
Zinc in Urine
Legend
Urine Arsenic is used for the determination of both total and non-diet Arsenic.
Urine copper and zinc are found in the same PTM obtained from a single healthy donor.
Serum copper, selenium, manganese and zinc are found in the same PTM, prepared using serum from a single healthy donor. The concentrations of these trace elements should therefore fall within the normal physiological range. We will on occasion modify the levels somewhat to provide additional analytical challenge.
Other analytes may be added if the need is expressed by participants.