Spex Certiprep | Date: 2013-09-12
Systems and methods for disseminating information pertaining to a reference material or certified reference material are disclosed. In one embodiment, the system includes the certified reference material and a package containing same, the package comprising a storage medium that stores an information product in a machine-readable format, the information product comprising either a pointer to certified analysis data or the certified analysis data itself. In one embodiment, the method comprises adding a quantity of a certified reference material to a package, incorporating, on the package, a storage medium for storing the information product, and encoding the information product in the storage medium.
Atkins P.,SPEX CertiPrep |
Ernyei L.,SPEX CertiPrep |
Driscoll W.,SPEX CertiPrep |
Obenauf R.,SPEX CertiPrep |
Thomas R.,Scientific Writing Solutions
Spectroscopy (Santa Monica) | Year: 2011
A study was conducted to demonstrate the analysis of toxic trace metals in pet foods using cryogenic grinding and quantitation by inductively couples plasma-mass spectrometry (ICP-MS). Results were compared to Environmental Protection Agency Reference Dose (RFD) values and World Health Organization Tolerable Daily Intake (TDI) values, which were considered the daily oral exposure limits for the human population. The investigations revealed that the highest concentrations of toxic elemental contamination were found in the dry dog foods. Lower concentrations of toxic metals were found in the wet dog food in comparison with the dry dog food. The arsenic level in all the samples exceeded the EPA RfD, but were below the WHO TDI similar to the dry dog foods. It was also revealed that concentrations of beryllium, cadmium, lead, antimony, mercury, and uranium were within the EPA and WHO limits.