| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2008-03-11 |
| タイトル |
|
|
タイトル |
Loss of Polychlorinated Dibenzo-p-dioxins, Polychlorinated Dibenzofurans and Coplanar Polychlorinated Biphenyls during Vacuum Concentration for Ultra-trace Analysis |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/DFS) |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Coplanar polychlorinated biphenyls (Co-PCBs) |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Analyie loss |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Vacuum concentration |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 作成者 |
KIGUCHI, Osamu
KOBAYASHI, Takashi
SAITOH, Katsumi
OGAWA, Nobuaki
|
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
We investigated the effectof kinds of organic solvent on the losses of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/DFs), coplanar polychlorinated biphenyls (Co-PCBs), and their 13C12-labeled compounds during vacuum concentration. n-Hexane and toluene solutions containing the standards of those compounds were tested for the purpose. The kind of organic solvent has remarkable effect on the loss of 13C12-Co-PCBs from the standard solutions, while it has littleor no effect on the losses of Co-PCBs, PCDD/DFs, and 13C12-PCDD/DFs from the standard solutions. The losses of lower chlorinated "Co12-C0-PCBs with w-hexane solution were greater than theloss of the compounds with toluene solution. The relative PCBs with w-hexane solution were greater than theloss of the compounds with toluene solution.The relative amounts of 13C１2-Co-PCBs in the condensate solvent produced during the vacuum concentration show that those of the compounds with toluene solution were less than that of n-hexane solution. These results demonstrate that the minimization of loss of the compounds with n-hexane solution may be achieved by adding toluene before the vacuum concentration. We also examined the relationship between the relative amounts of Co-PCBs and 13C12-Co-PCBs in the condensate solvents and vapor pressures of those compounds. amounts of Co-PCBs and 13C12-Co-PCBs in the condensate solvents and vapor pressures of those compounds. amounts of Co-PCBs and 13C12-Co-PCBs in the condensate solvents and vapor pressures of those compounds. There was the difference in the regression line slopes of the relativeamounts vs. in the vapor pressures between the n-hexane solution and toluene solution. This fact could be useful for the optimization of the vacuum concentration conditions in the convenient analytical methods. |
|
言語 |
en |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 書誌情報 |
en : International Journal of the Society of Materials Engineering for Resources
巻 13,
号 1,
p. 22-27,
発行日 2005-08-01
|
| 収録物識別子 |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
1347-9725 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA1095475X |
| 出版者 |
|
|
出版者 |
The Society of Materilas Engineering for resources of Japan |
|
言語 |
en |
| 関連情報 |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.5188/ijsmer.13.22 |
ijsmer13(13) (1.3 MB)
