نتایج جستجو برای: phosphorus compounds

تعداد نتایج: 265774  

Journal: :Acta Crystallographica Section A Foundations of Crystallography 2006

Journal: :Plant physiology 1957
H Koontz O Biddulph

Phosphorus is known to be exported from leaves of apple (8, 9, 10), bean (4, 6, 11, 12, 13), chrysanthemum (1, 2), corn (11, 12), tomato (12) and squash (71). The present work with bean plants compares export following application by spray, leaf vein injection (4) and droplet (13) methods. Other factors investigated which affect absorption and subsequent translocation of the spray-applied phosp...

Journal: :Talanta 2005
Paul J Worsfold Laura J Gimbert Utra Mankasingh Omaka Ndukaku Omaka Grady Hanrahan Paulo C F C Gardolinski Philip M Haygarth Benjamin L Turner Miranda J Keith-Roach Ian D McKelvie

Phosphorus is an important macronutrient and the accurate determination of phosphorus species in environmental matrices such as natural waters and soils is essential for understanding the biogeochemical cycling of the element, studying its role in ecosystem health and monitoring compliance with legislation. This paper provides a critical review of sample collection, storage and treatment proced...

Journal: :Nihon Chikusan Gakkaiho 1964

2007
H. BOCK

The results of (low energy) photoelectron spectroscopy render possible a better appreciation of bonding in molecules. The application of the new experimental method is demonstrated utilizing representative phosphorus compounds, and the close symbiosis delineated with molecular orbital models. Among the topics discussed are: the element P4, phosphine PH3 and derivatives, phosphorus substituent e...

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