More on Inheritance Hierarchies with Exceptions: Default Theories and Inferential Distance
Abstract
The extraction behaviour of selenium(IV) and selenium(VI) with sodium diethyldithiocarbamate, ammonium pyrrolidinedithiocarbamate and dithizone in organic solvents has been investigated by means of flameless atomic-absorption spectrophotometry with a carbon-tube atomizer. The selective extraction of selenium(IV) and differential determination of selenium(IV) and selenium(VI) have been developed. With sodium diethyldithiocarbamate and carbon tetrachloride, when the aqueous phase/organic solvent volume ratio is 5 and the injection volume in the carbon tube is 20 microl, the sensitivity for selenium is 0.4 ng/ml for 1% absorption. The relative standard deviations are ca. 3%. Interference by many metal ions can he prevented by masking with EDTA. The proposed methods have been applied satisfactorily to determination of Se(IV) and Se(VI) in various types of water.
Cite
Text
Etherington. "More on Inheritance Hierarchies with Exceptions: Default Theories and Inferential Distance." AAAI Conference on Artificial Intelligence, 1987. doi:10.1016/0039-9140(78)80070-8Markdown
[Etherington. "More on Inheritance Hierarchies with Exceptions: Default Theories and Inferential Distance." AAAI Conference on Artificial Intelligence, 1987.](https://mlanthology.org/aaai/1987/etherington1987aaai-more/) doi:10.1016/0039-9140(78)80070-8BibTeX
@inproceedings{etherington1987aaai-more,
title = {{More on Inheritance Hierarchies with Exceptions: Default Theories and Inferential Distance}},
author = {Etherington, David W.},
booktitle = {AAAI Conference on Artificial Intelligence},
year = {1987},
pages = {352-357},
doi = {10.1016/0039-9140(78)80070-8},
url = {https://mlanthology.org/aaai/1987/etherington1987aaai-more/}
}