Results 61 to 70 of about 1,501,506 (193)
The Journal of the Society of Chemical Industry, Japan, 1963 原子吸光分光光度法による鉄鋼中のニッケルの定量を研究した。原子吸光分光光度法で,ニッケルの定量をおこなう場合,鉄は10mg/ml以下ならばニッケルの吸収に影響を与えなかった。また,その他の元素もモリブデン酸,リン酸塩,硫酸塩以外は,ニッケルの測定に障害をあたえなかった。モリブデン酸,リン酸塩,硫酸塩が共存するとニッケルの吸収が増大した。しかし,その程度はわずかであり,しかも鉄,クロムなどがかなりの量共存すると,これらの影響は消失した。鉄鋼中のニッケルは試料を酸で分解し,そのまま炎中に噴霧して吸収を測定することにより定量することができる。微量のニッケルを定量する場合には,ニッケルをジエチルジチオカルバミン酸錯化合物として,メチルイソブチルケトンで抽出し,噴霧する方法が適当であった。多量の試料を用い ...
Tsugio Takeuchi +2 more
openaire +2 more sources
Çukurova Üniversitesi Tıp Fakültesi Dergisi, 2013 Context: Iron is an essential element for most life on Earth, including human beings and its accurate determination is extremely important. A simple and sensitive spectrophotometric method has been used for the determination of iron concentration in ...
Usama Abu Mohsen +2 more
doaj
Blood Lead Level among Children between 8-18 years of Age by Atomic Absorption Spectrophotometry: A Descriptive Cross-sectional Study. [PDF]
JNMA J Nepal Med Assoc, 2021 Shrestha YK +4 more
europepmc +1 more source
Extração líquido-líquido dos íons cádmio(II), cobre(II), manganês(II), níquel(II) e zinco(II) com o ligante N, N',N,N' -BIS[(2-hidroxi-3,5-DI-terc-butilbenzil)(2-piridilmetil)]-etilenodiamina [PDF]
, 2007 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaO presente trabalho propôs avaliar o potencial do ligante N,N',N,N'-bis[(2-hidroxi-3,5-di-terc-butilbenzil)(2 ...
Laus, Rogério
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, 1967 Rubidium at a concentration of between ∼0.5 and ∼3 ppm has been determined in rocks and minerals by atomic absorption spectrophotometry. By comparison with external standards a precision of better than 3% has been attained without recourse to chemical ...
Vosters, Marcel, Deutsch, Marie Sarah
core +1 more source
PENENTUAN NILAI KETIDAKPASTIAN ANALISIS MERKURI (HG) PADA DAUN SINGKONG MENGGUNAKAN METODE SOLID SAMPLING ATOMIC ABSORPTION SPECTROPHOTOMETRY [PDF]
, 2018 Merkuri (Hg) merupakan logam berat yang berbahaya bagi tubuh apabila keberadaannya melebihi ambang batas. Penentuan Hg telah banyak dilakukan salah satunya dengan menggunakan instrumen AAS (Atomic Absorption Spectrophotometry).
Alfarisa, Suhufa, Sumarlan, Iwan
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Química Nova, 2002 Copper, aluminum and iron concentrations were determined in four geochemical fractions of three different basaltic soils from the northwest region of the Parana State, Brazil. The fractions examined were the reducible manganese dioxide and amorphous iron
Costa Antonio Carlos Saraiva da +3 more
doaj
Desenvolvimento de procedimentos analíticos para a determinação de enxofre em carvão usando espectrometria de absorção molecular de alta resolução com fonte contínua em forno de grafite [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013.Análise direta de amostras sólidas é uma boa alternativa para a determinação de enxofre ...
Mior, Renata
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Atomic Energy Commission Report AECD-3792
, 1955 Report discussing the progress of various projects at the Knolls Atomic Power Laboratory during the period from March to May ...
Knolls Atomic Power Laboratory
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E3S Web of Conferences, 2014 It has long been believed that some metals possess many adverse health effects. Recently, certain elements have been identified as essential trace elements that play an important role in the genesis and progression of several diseases.
Tadayon F. +3 more
doaj +1 more source