@article{oai:nagoya.repo.nii.ac.jp:00019984, author = {中村, 俊夫 and 太田, 友子 and 西田, 真砂美 and Nakamura, Toshio and Ohta, Tomoko and Nishida, Masami}, journal = {名古屋大学加速器質量分析計業績報告書}, month = {Mar}, note = {We have measured 14C concentration of plastic bag samples to confirm that the plastic bags were produced from sustainable carbon, carbon contained in living plants, instead of fossil carbon. Three plastic bags used for normal shopping of food carrier had descriptions on the bag that they were produced from sustainable carbon in some amount. To check the amount of carbon from recent plant remains, we have measured 14C concentrations of the plastic bag samples. The 14C contents were consistent with the statements described on the bags. However, δ13C values of carbon from the bags were not consistent with the remarks. It was clearly indicated that C3 plants were used instead of C4 plants to produce bags, contradictory to the remarks on the bags that insists C4 plants were used., 名古屋大学年代測定総合研究センターシンポジウム報告}, pages = {144--149}, title = {ESDに向けての14C測定の利用}, volume = {26}, year = {2015} }