Optimization of an isothermal gas-chromatographic setup for the chemical exploration of dubnium (Db, Z = 105) oxychlorides

Nadine M. Chiera; Tetsuya K. Sato; Tomohiro Tomitsuka; Masato Asai; Yuta Ito; Kaori Shirai; Hayato Suzuki; Katsuyuki Tokoi; Atsushi Toyoshima; Kazuaki Tsukada; Yuichiro Nagame

doi:10.1007/s10967-019-06505-w

Optimization of an isothermal gas-chromatographic setup for the chemical exploration of dubnium (Db, Z = 105) oxychlorides

Nadine M. Chiera, Tetsuya K. Sato, Tomohiro Tomitsuka, Masato Asai, Yuta Ito, Kaori Shirai, Hayato Suzuki, Katsuyuki Tokoi, Atsushi Toyoshima, Kazuaki Tsukada, Yuichiro Nagame

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

An isothermal gas-chromatographic (IGC) device has been developed and tested for on-line gas phase studies of volatile oxychlorides of short-lived group-5 transition metals. Radioisotopes of niobium and tantalum, produced in nuclear fusion evaporation reactions, are directly flushed into the IGC setup by an inert gas-jet. Oxychloride compounds are formed by the addition of SOCl₂ and O₂. Parameters influencing the formation and transport of NbOCl₃ and TaOCl₃ are discussed. For nuclides with half-lives (t_1/2) of about 30 s, an overall efficiency of 7% is obtained, rendering the IGC setup suitable for the chemical exploration of ²⁶²Db (t_1/2 = 34 s).

Original language	English
Pages (from-to)	633-642
Number of pages	10
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	320
Issue number	3
DOIs	https://doi.org/10.1007/s10967-019-06505-w
State	Published - Jun 15 2019
Externally published	Yes

Funding

Acknowledgements The authors express their gratitude to the crew of the JAEA Tandem accelerator for their assistance in the course of these experiments. The present work was partly supported by JSPS Kakenhi Grant-in-Aid for Young Scientists (B) (Grant No. 20740152).

Keywords

Dubnium
Isothermal gas-chromatography
Niobium
Oxychlorides
Tantalum

Access to Document

10.1007/s10967-019-06505-w

Cite this

Chiera, N. M., Sato, T. K., Tomitsuka, T., Asai, M., Ito, Y., Shirai, K., Suzuki, H., Tokoi, K., Toyoshima, A., Tsukada, K., & Nagame, Y. (2019). Optimization of an isothermal gas-chromatographic setup for the chemical exploration of dubnium (Db, Z = 105) oxychlorides. Journal of Radioanalytical and Nuclear Chemistry, 320(3), 633-642. https://doi.org/10.1007/s10967-019-06505-w

@article{cde49760b90448c5ab13c192d2360913,

title = "Optimization of an isothermal gas-chromatographic setup for the chemical exploration of dubnium (Db, Z = 105) oxychlorides",

abstract = "An isothermal gas-chromatographic (IGC) device has been developed and tested for on-line gas phase studies of volatile oxychlorides of short-lived group-5 transition metals. Radioisotopes of niobium and tantalum, produced in nuclear fusion evaporation reactions, are directly flushed into the IGC setup by an inert gas-jet. Oxychloride compounds are formed by the addition of SOCl2 and O2. Parameters influencing the formation and transport of NbOCl3 and TaOCl3 are discussed. For nuclides with half-lives (t1/2) of about 30 s, an overall efficiency of 7\% is obtained, rendering the IGC setup suitable for the chemical exploration of 262Db (t1/2 = 34 s).",

keywords = "Dubnium, Isothermal gas-chromatography, Niobium, Oxychlorides, Tantalum",

author = "Chiera, \{Nadine M.\} and Sato, \{Tetsuya K.\} and Tomohiro Tomitsuka and Masato Asai and Yuta Ito and Kaori Shirai and Hayato Suzuki and Katsuyuki Tokoi and Atsushi Toyoshima and Kazuaki Tsukada and Yuichiro Nagame",

note = "Publisher Copyright: {\textcopyright} 2019, Akad{\'e}miai Kiad{\'o}, Budapest, Hungary.",

year = "2019",

month = jun,

day = "15",

doi = "10.1007/s10967-019-06505-w",

language = "English",

volume = "320",

pages = "633--642",

journal = "Journal of Radioanalytical and Nuclear Chemistry",

issn = "0236-5731",

publisher = "Akad{\'e}miai Kiad{\'o}",

number = "3",

}

Chiera, NM, Sato, TK, Tomitsuka, T, Asai, M, Ito, Y, Shirai, K, Suzuki, H, Tokoi, K, Toyoshima, A, Tsukada, K & Nagame, Y 2019, 'Optimization of an isothermal gas-chromatographic setup for the chemical exploration of dubnium (Db, Z = 105) oxychlorides', Journal of Radioanalytical and Nuclear Chemistry, vol. 320, no. 3, pp. 633-642. https://doi.org/10.1007/s10967-019-06505-w

TY - JOUR

T1 - Optimization of an isothermal gas-chromatographic setup for the chemical exploration of dubnium (Db, Z = 105) oxychlorides

AU - Chiera, Nadine M.

AU - Sato, Tetsuya K.

AU - Tomitsuka, Tomohiro

AU - Asai, Masato

AU - Ito, Yuta

AU - Shirai, Kaori

AU - Suzuki, Hayato

AU - Tokoi, Katsuyuki

AU - Toyoshima, Atsushi

AU - Tsukada, Kazuaki

AU - Nagame, Yuichiro

PY - 2019/6/15

Y1 - 2019/6/15

N2 - An isothermal gas-chromatographic (IGC) device has been developed and tested for on-line gas phase studies of volatile oxychlorides of short-lived group-5 transition metals. Radioisotopes of niobium and tantalum, produced in nuclear fusion evaporation reactions, are directly flushed into the IGC setup by an inert gas-jet. Oxychloride compounds are formed by the addition of SOCl2 and O2. Parameters influencing the formation and transport of NbOCl3 and TaOCl3 are discussed. For nuclides with half-lives (t1/2) of about 30 s, an overall efficiency of 7% is obtained, rendering the IGC setup suitable for the chemical exploration of 262Db (t1/2 = 34 s).

AB - An isothermal gas-chromatographic (IGC) device has been developed and tested for on-line gas phase studies of volatile oxychlorides of short-lived group-5 transition metals. Radioisotopes of niobium and tantalum, produced in nuclear fusion evaporation reactions, are directly flushed into the IGC setup by an inert gas-jet. Oxychloride compounds are formed by the addition of SOCl2 and O2. Parameters influencing the formation and transport of NbOCl3 and TaOCl3 are discussed. For nuclides with half-lives (t1/2) of about 30 s, an overall efficiency of 7% is obtained, rendering the IGC setup suitable for the chemical exploration of 262Db (t1/2 = 34 s).

KW - Dubnium

KW - Isothermal gas-chromatography

KW - Niobium

KW - Oxychlorides

KW - Tantalum

UR - https://www.scopus.com/pages/publications/85066266638

U2 - 10.1007/s10967-019-06505-w

DO - 10.1007/s10967-019-06505-w

M3 - Article

AN - SCOPUS:85066266638

SN - 0236-5731

VL - 320

SP - 633

EP - 642

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

IS - 3

ER -

Optimization of an isothermal gas-chromatographic setup for the chemical exploration of dubnium (Db, Z = 105) oxychlorides

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this