While phosphorus is a limited resource that essential for agriculture, its release to the environment adversely impacts water quality. At same time, animal wastewaters contain significant quantities of and nitrogen can be recovered beneficial use. Phosphorus uptake experiments were performed with magnesium-treated corn-cob char magnesium silicate prepared using from rice straw at pH 8 9. The co...

Abstract Different structure types of vanadyl(V) orthophosphate [i.e. (V V ≡O) 3+ orthophosphate] have been subjects research due to their catalytic activity in the oxidation n -butane maleic anhydride. Electron paramagnetic resonance (EPR) spectroscopy can be exploited elucidate electronic such compounds. When tuning state vanadium 1-x W x )OPO 4 , X-band EPR spectra confirmed presence 4+ ions...

Lead acetate treatment of unfixed cells immobilizes the intracellular water-soluble, inorganic orthophosphate ions as microcrystalline lead hydroxyapatite precipitates (see reference 1). These precipitates have been analyzed with the electron microprobe. A much higher concentration of phosphorus has been found in the nucleoli of maize root tip cells fixed in lead acetate-glutaraldehyde (organic...

In previous studies’ with a dialyzed supernatant fraction from rat liver it was observed that the formation of heptulose phosphate from fructose g-phosphate was significantly inhibited by inorganic phosphate. It has since been shown (1, 2) that the activity of the dialyzed liver fraction can be related to its content of transketolase and transaldolase and it became of interest to determine whet...