2024-03-29T05:26:11Z
https://repository.dl.itc.u-tokyo.ac.jp/oai
oai:repository.dl.itc.u-tokyo.ac.jp:00000134
2022-12-19T03:41:05Z
40:41:42
9:10:11
Graphite-Furnace atomic absorption spectrometry of organomercury and organoselenium in extracts of biological samples with an organopalladium matrix modifier
Li, Hui
690
Nagasawa, Hiromichi
691
Matsumoto, Kazuko
692
433
Organomercury
organoselenium
matrix modifier
palladium
organic solvent
application/pdf
The sensitivity of organomercury in organic solutions has been found to be enhanced by applying 15 µl of an ethanol solution of Pd(acac)2 (500 µgPdml-1, acac is acetylacetonate) to a graphite-furnace, which is then heated to make a Pd coating on the furnace. After this treatment, an ethanol solution of the sample is injected to the furnace and measured. With this method, the detection limit of organomercury was found to be 0.25 ng. In a slightly different way, in which 2 ml of an ethanol solution of PdCl2(PhCN)2 (1000 µgPd ml-1) was added as a matrix modifier to 3 ml of an ethanol solution of organoselenium, selenium was determined with a detection limit of 0.12 ng. These methods can be successfully applied to the determinations of organomercury and organoselenium in an extract solution of a dolphin liver.
journal article
Japan Society for Analytical Chemistry
1996
application/pdf
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry
2
12
215
218
AA10500785
09106340
https://repository.dl.itc.u-tokyo.ac.jp/record/134/files/analsci12.pdf
eng