Analyte sample:

A typical determination of cadmium in blood involves de-proteination with nitric acid followed by direct determination by GFAAS using source with 228.8 nm output. The blood sample is collected in plastic collection tubes using vinyl gloves free of talc and is stored at a temperature of - 20^oC to 4^oC. All the laboratory ware is to be soaked in diluted nitric acid and biodistilled quality water is used for dilution work. The determination is preceded by the obtaining calibration curves using matrix adapted calibration solutions. In simple words it means that the calibration solution contains all the known components of the analyte sample. A multiple standard calibration is preferred. Similarly, Cd could also be denoted in hair, urine, and other body tissues.