Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Keizo Hiraki"'
Publikováno v:
Journal of Environmental Quality. 31:718-723
Air pollution in the areas affected by the Great Hanshin Earthquake (Hyogo, Japan) of 17 Jan. 1995 was quite serious. We performed three investigations of dust. In the first investigation, we measured the total suspended particulate (TSP) concentrati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4263e94f3aa9f10d72e04c38e4394dd
https://doi.org/10.2134/jeq2002.7180
https://doi.org/10.2134/jeq2002.7180
Publikováno v:
GEOCHEMICAL JOURNAL. 35:355-364
Dissolved organic carbon (DOC) in the Sea of Japan was determined by the high temperature catalytic oxidation (HTCO) method. The chemical parameters related to DOC, i.e., the three-dimensional excitation-emission matrix spectrum, nutrients, chlorophy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c26b6df8ef60ccc1e35ab80c04f98f9
https://doi.org/10.2343/geochemj.35.355
https://doi.org/10.2343/geochemj.35.355
Publikováno v:
BUNSEKI KAGAKU. 49:175-179
同位体希釈/マイクロ波誘導プラズマ質量分析法(MIP-MS)による水試料中のモリブデンの定量方法について検討した。98Mo/97Mo比を測定し,MIP-MS装置のスキャン条件,試料中のモリブデンの濃度,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1f9ceedf0a3650c3617d68257c76f90
https://doi.org/10.2116/bunsekikagaku.49.175
https://doi.org/10.2116/bunsekikagaku.49.175
Publikováno v:
Analytical Sciences. 14:785-789
The use of a combined mixed magnesium(Mg)-rhodium(Rh) chemical modifier allows a compromise higher pyrolysis temperature to be used for the simultaneous detection of chromium (Cr), copper (Cu), iron (Fe), manganese (Mn) and lead (Pb) in various human
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbc11054587c25a62841078788476f96
https://doi.org/10.2116/analsci.14.785
https://doi.org/10.2116/analsci.14.785
Publikováno v:
Analytical Sciences. 13:195-198
Optimized procedures were established for the determination of total Se, organic Se, Se(IV), and Se(VI) in human hair by means of hydride-generation atomic absorption spectrometry (HGAAS), respectively. Using this method, the total Se content in a ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52ce8051a22c6fbc6e34b5a4c3557567
https://doi.org/10.2116/analsci.13.195
https://doi.org/10.2116/analsci.13.195
Publikováno v:
BUNSEKI KAGAKU. 46:785-790
黒鉛炉原子吸光法により頭髪試料中の微量セレンを定量するため, 硝酸ロジウム-硝酸マグネシウム混合修飾剤を添加する方法を検討した.マトリックス修飾剤の添加によりセレンの原子化
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8da417181ad5cdd631269f26bf9356fd
https://doi.org/10.2116/bunsekikagaku.46.785
https://doi.org/10.2116/bunsekikagaku.46.785
Publikováno v:
BUNSEKI KAGAKU. 46:335-342
天然水の腐植物質は微量元素及び疎水性有害有機物のキャリヤー又はトリハロメタンの前駆物質と考えられている.天然水をグラスファイバーフィルターで濾過後,三次元分光蛍光光度計
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cfd135ffdc316cfb15e8e409e178ba0
https://doi.org/10.2116/bunsekikagaku.46.335
https://doi.org/10.2116/bunsekikagaku.46.335
Autor:
Toshihiro Shirasaki, Keizo Hiraki
Publikováno v:
BUNSEKI KAGAKU. 44:543-547
マイクロ波誘導プラズマ質量分析法(MIP-MS法)を用いた生体試料中のヒ素及びセレンの分析条件について検討を行った.又,試料中に多量に共存するナトリウム,カリウム,カルシウム,硫黄,リ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3ccec642a2b846ec231d3d793c973a7
https://doi.org/10.2116/bunsekikagaku.44.543
https://doi.org/10.2116/bunsekikagaku.44.543
Autor:
Toshihiro Shirasaki, Keizo Hiraki
Publikováno v:
BUNSEKI KAGAKU. 43:25-29
ホトレジスト溶液中に不純物として存在するクロム,マンガン,鉄,ニッケル,銅,鉛を,マイクロ波プラズマ質量分析計(MIP-MS)にて直接分析する手法を検討した.分析に用いるイオン源として,窒
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b40e3f7de716df2c0bbf22fd8b2019c0
https://doi.org/10.2116/bunsekikagaku.43.25
https://doi.org/10.2116/bunsekikagaku.43.25
Publikováno v:
BUNSEKI KAGAKU. 43:1127-1132
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83c7224c40aa6895fcdf9e9271ab7f7b
https://doi.org/10.2116/bunsekikagaku.43.1127
https://doi.org/10.2116/bunsekikagaku.43.1127