Biochemical technique was used to separate three kinds of proteins (albumin, globulin and gliadin) in corn samples froin high selenium areas and normal areas in Erxi autonomous region of Hubei Province, China. The con...Biochemical technique was used to separate three kinds of proteins (albumin, globulin and gliadin) in corn samples froin high selenium areas and normal areas in Erxi autonomous region of Hubei Province, China. The contents of Se and other elements in these proteins were determined by neutron activation analysis (NAA). The results show that Se is enriched in corn proteins at high selenium area, while Cu, Al, Mn, V and Cl are also enriched in varying degrees.展开更多
The paper describes a method of selenium determination by neutron activation analysis using gamma-gamma coincidence spectrometer with Compton suppression. The analysis results of some standard reference material from ...The paper describes a method of selenium determination by neutron activation analysis using gamma-gamma coincidence spectrometer with Compton suppression. The analysis results of some standard reference material from NBS or IAEA are reported. The differences between our data and reported values are discussed.展开更多
One factor of influencing crop growth is the effective elemental contents, especially trace elements, under the circumstances of the same concentrations of N, P and K in soil. In order to obtain the data of effective ...One factor of influencing crop growth is the effective elemental contents, especially trace elements, under the circumstances of the same concentrations of N, P and K in soil. In order to obtain the data of effective elemental contents in soil, a novel method was introduced. In this method, soil solution was extracted by a squeezer. The concentrations of elements in soil solution were determined by INAA. Study on the compositions and the contents of elements in soil solution will provide information on making a suitable soil environment for plant growth and for rational and economical manure.展开更多
Selenium is one of the trace elements essential to human beings. In addition to being a component of glutathione peroxidase, a number of proteins containing Se have been newly found. Although the correlation of Se-def...Selenium is one of the trace elements essential to human beings. In addition to being a component of glutathione peroxidase, a number of proteins containing Se have been newly found. Although the correlation of Se-deficiency with the Keshan disease has been展开更多
文摘Biochemical technique was used to separate three kinds of proteins (albumin, globulin and gliadin) in corn samples froin high selenium areas and normal areas in Erxi autonomous region of Hubei Province, China. The contents of Se and other elements in these proteins were determined by neutron activation analysis (NAA). The results show that Se is enriched in corn proteins at high selenium area, while Cu, Al, Mn, V and Cl are also enriched in varying degrees.
文摘The paper describes a method of selenium determination by neutron activation analysis using gamma-gamma coincidence spectrometer with Compton suppression. The analysis results of some standard reference material from NBS or IAEA are reported. The differences between our data and reported values are discussed.
文摘One factor of influencing crop growth is the effective elemental contents, especially trace elements, under the circumstances of the same concentrations of N, P and K in soil. In order to obtain the data of effective elemental contents in soil, a novel method was introduced. In this method, soil solution was extracted by a squeezer. The concentrations of elements in soil solution were determined by INAA. Study on the compositions and the contents of elements in soil solution will provide information on making a suitable soil environment for plant growth and for rational and economical manure.
文摘Selenium is one of the trace elements essential to human beings. In addition to being a component of glutathione peroxidase, a number of proteins containing Se have been newly found. Although the correlation of Se-deficiency with the Keshan disease has been
