title: Accuracy of radioanalytical procedures used to determine the biobased content of manufactured products.
abstract: Radiocarbon analyses were used to determine the "biobased content" of a variety of diverse samples. The theoretical biobased contents of those samples were compared to the biobased content values obtained by radiocarbon analyses. Results of this work indicated that the radiocarbon analyses provided accurate (within +/-3%, absolute) biobased content values for the samples tested. It is not practical to examine the accuracy of the radiocarbon analyses for every possible type of sample matrix. However, based on analyses performed on various types of samples, every indication is that the analyses provide accurate and reliable results on the biobased content of liquid and solid materials.
authors.affiliation: Center for Sustainable Environmental Technologies, Iowa State University, Ames, IA 50011, USA. norton@ameslab.gov
authors.forename: Glenn A
authors.initials: GA
authors.lastname: Norton
authors.forename: Darden G
authors.initials: DG
authors.lastname: Hood
authors.forename: Steven L
authors.initials: SL
authors.lastname: Devlin
mesh_terms: D002250:Carbon Radioisotopes / Q000032:analysis*; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D019411:Clinical Laboratory Techniques / Q000592:standards*; D000431:Ethanol / Q000032:analysis; D019344:Lactic Acid / Q000032:analysis; D008420:Manufactured Materials / Q000032:analysis*; D011091:Polyesters; D011108:Polymers / Q000032:analysis
chemical_list: D002250:Carbon Radioisotopes; D011091:Polyesters; D011108:Polymers; D019344:Lactic Acid; D000431:Ethanol; C033616:poly(lactide)