@inproceedings{oai:repo.qst.go.jp:00077644,
 author = {Zheng, Jian and Wang, Hai and Huang, Zhaoya and Ni, Youyi and Aono, Tatsuo and Zheng, Jian and Aono, Tatsuo},
 book = {The Proceedings of the 20th KEK Symposium on Environmental Radioactivity.},
 month = {Nov},
 note = {In this study, a green and rapid analytical method was developed for determination of Pu isotopes in marine sediment samples. The methods consisted of low temperature NH4HF2 fusion incorporated with procedure for CaF2/LaF3 co-precipitation, extraction chromatography and ICP-MS/MS measurement. The fusion procedure was done at 250oC on a portable hot plate instead of in a cumbersome muffle furnace and took only 15 min. Chemical recoveries of Pu after completing the NH4HF2 fusion method and chromatographic separation for 0.5-1 g sample were approximately 90%. This fusion method was capable of releasing refractory Pu from samples. Additionally, because HF is not used in the NH4HF2 fusion method, a safer and greener alternative to HNO3-HF digestion is realized for rapid Pu determination in marine sediments collected in Japanese coast after the Fukushima nuclear accident.},
 pages = {235--241},
 title = {Low-temperature fusion using NH4HF2 for rapid determination of Pu isotopes by ICP-MS/MS: application for marine sediments collected in Japanese coast.},
 volume = {KEK Proceedings 2019-2},
 year = {2019}
}