Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Syn-ichi Itoh"'
Publikováno v:
Mikrochimica Acta. 131:205-210
The determination of cobalt by electrothermal atomic absorption spectrometry with a tungsten tube atomizer has been investigated. The absolute characteristic mass (the mass of element giving 0.0044 abs.) of cobalt by the atomizer was 5.8 pg and the d
Publikováno v:
Environmental Engineering Science. 16:131-137
The electrochemical reduction of CO2 in a KOH/methanol-based electrolyte was investigated with an indium (In) wire electrode at ambient temperature and pressure. Formic acid, carbon monoxide, and methane were the main products from the CO2. The forma
Publikováno v:
Talanta. 46:139-143
A new concentration method of rhodium using Mg–W cell-electrodeposition has been developed. The method was combined with electrothermal atomic absorption spectrometry (ETAAS) with a tungsten tube atomizer. The optimal immersing time was 120 s. The
Publikováno v:
International Journal of Environmental Analytical Chemistry. 69:181-189
An electrodeposition method of trace elements using a Mg-W cell is reported. This method does not need a power supply (electric source) like a potentiostat or a battery. Some elements electrodeposited on a W sheet were detected by electrothermal atom
Publikováno v:
Microchemical Journal. 56:343-351
Atomization characteristics of chromium have been studied by electrothermal atomic absorption spectrometry with a molybdenum tube atomizer. The appearance temperature ( T app ) of chromium nitrate was 1300°C. The T app was independent of the heating
Publikováno v:
Mikrochimica Acta. 127:51-54
Determination of cadmium and lead in river water by sequential metal vapor elution analysis (SMVEA, column temperature; >1210 K) with argon carrier gas and an atomic absorption detector (AA) is reported. The column was a molybdenum tube inserted a tu
Publikováno v:
Analytica Chimica Acta. 291:115-120
Electrothermal atomic absorption spectrometry (ETA-AAS) of aluminum with a tungsten tube atomizer was investigated. By the addition of hydrogen to the argon purge, a sensitive ETA-AAS method was developed. The optimum gas flow-rates were argon 300 ml
Publikováno v:
Analytica Chimica Acta. 267:131-136
Electrothermal atomic absorption spectrometry (ETAAS) of silver with a molybdenum tube atomizer was investigated. Hydrogen was added to the argon purge gas to protect the metal atomizer from oxidation by trace oxygen in the atomizer chamber. The opti
Publikováno v:
Analytical Sciences. 8:423-426
A method is described for the direct determination of manganese in biological samples utilizing electrothermal atomization atomic absorption spectrometry with a molybdenum tube atomizer and a matrix modifier. The atomization characteristics of mangan
Publikováno v:
Analytical Letters. 25:745-752
An electrothermal atomization method of atomic absorption spectrometry using a platinum tube atomizer in air is described. The atomizer consists of 0.025 mm-walled platinum tube and two supports. The remarkable merit of the platinum atomizer is the s