共查询到20条相似文献,搜索用时 15 毫秒
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Kenneth Heber 《BMJ (Clinical research ed.)》1965,2(5467):943-944
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A. S. Parkes 《BMJ (Clinical research ed.)》1938,1(4024):371-373
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At salt concentrations of 0.1 mM as well as of 5.0 mM, the 22Na+ absorption capacity of bean (Phaseolus vulgaris L. cv. ‘Brittle Wax’) leaf tissue increased during the period of leaf expansion and decreased rapidly after leaf maturation. The absorption capacity for 86Rb+ and 42K+ was highest in very young leaves and decreased continuously in expanding and in mature leaves. The 86Rb+ absorption capacity of mature leaves was not increased by detopping the plants; this senescence-retarding treatment more than doubled 2Na+ absorption. The absorption of 22Na+ by bean-leaf slices was not enhanced by light, whereas 86Rb+ and 42K+ absorption was much affected. Previously absorbed 86Rb+ and 42K+ were more available for exchange than 22Na+. 相似文献
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Absorption microphotometry of irregular-shaped objects 总被引:30,自引:0,他引:30
PATAU K 《Chromosoma》1952,5(4):341-362
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Absorption ratios are supplied for most of the dyes used as biological stains.
The use of these ratios will enable the analyst to identify the stains conveniently, and will also frequently afford information of considerable value respecting their purity. 相似文献
The use of these ratios will enable the analyst to identify the stains conveniently, and will also frequently afford information of considerable value respecting their purity. 相似文献
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H Bo?dys 《Polski tygodnik lekarski (Warsaw, Poland : 1960)》1984,39(22):759-762
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Klaus Patau 《Chromosoma》1953,5(1):341-362
Summary A new microphotometric method (mainly for the evaluation of microchemical color reactions) which uses measurements at two wave lengths (developed byOrnstein and, independently, by the author) is presented in a form which greatly reduces the computational labor (for an illustration, see Table 3).Contribution from the Program in Cytology, Department of Botany, University of Wisconsin, Madison, supported in part by grants to Dr.C. Leonard huskins from the Research Committee of the Graduate School with funds supplied by the Wisconsin Alumni Research Foundation. 相似文献
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W. D. Halliburton 《BMJ (Clinical research ed.)》1904,1(2258):823-825