搜索结果: 1-13 共查到“化学 phosphate”相关记录13条 . 查询时间(0.062 秒)
Phosphate Vibrations Probe Local Electric Fields and Hydration in Biomolecules
Phosphates Water Phospholipids Spectrophotometry, Infrared Electricity Models, Molecular
2016/5/25
The role of electric fields in important biological processes such as binding and catalysis has been studied almost exclusively by computational methods. Experimental measurements of the local electri...
An efficient one-pot synthesis of dihydropyrimidinones catalyzed by zirconium hydrogen phosphate under solvent-free conditions
Biginelli reaction solvent-free zirconium hydrogen phosphate
2010/10/18
A simple, efficient, and practical procedure for the Biginelli reaction using zirconium hydrogen phosphate [Zr(H2PO4)2] as a novel solid acid catalyst is described under solvent-free conditions in hig...
Improved Solid-phase Spectrometry for the Microdetermination of Total and Dissolved Phosphate
Improved Solid-phase Spectrometry Microdetermination Phosphate
2010/9/17
Solid-phase spectrophotometry has been improved for the determination of the total and dissolved phosphate in water. The target phosphate-P at sub-μg dm−3 to μg dm−3 levels in a 20-cm3 wat...
Spectrophotometric Determination of Trace Phosphate Ions by Amplitude-Modulated Flow Analysis Coupled with Malachite Green Method
Spectrophotometric Determination Trace Phosphate Ions
2010/9/14
An amplitude-modulated flow analysis coupled with lock-in detection is proposed for the determination of trace phosphate. The flow rate FS of sample solution is varied in response to a periodic signal...
Synthesis of Mesoporous Lanthanum Phosphate and Its Use as a Novel Sorbent
mesoporous surfactant lanthanum phosphate metal cation sorption
2007/12/20
Mesoporous lanthanum phosphate was synthesized by supramolecular self-assembly of cetyltrimethylammonium bromide and lanthanum nitrate following digestion in phosphoric acid. TGA-DTA, XRD and SEM were...
Catalytic Kinetic Spectrophotometric Method for Determination of Phosphate Ion
kinetic spectrophotometric method sodium pyrogallol-5-sulphonate phosphate oxygen oxidation determination water soil
2007/12/19
摘要 The kinetic method for the determination of phosphate microamounts was described. The developed method is based on catalytic effect of phosphate on sodium pyrogallol-5-sulphonate (PS) by dissolved ...
磷酸铵与多聚磷酸铵插层可膨胀石墨的制备（Preparation of Expandable Graphite Intercalated by Ammonium Phosphate and Ammonium Polyphosphate）
石墨 可膨胀石墨 磷酸铵 多聚磷酸铵
2010/8/18
Expandable graphite intercalated by ammonium phosphate (AP) or ammonium polyphosphate (APP) was prepared by direct intercalation and two-step method, respectively. The products from two-step method sh...
Association of Fertilizer and Phosphate Chemists
Association of Fertilizer and Phosphate Chemists 磷酸盐 化学
2007/12/29
The Association of Fertilizer and Phosphate Chemists (AFPC) is formerly known as Association of Florida Phosphate Chemists.
The in Vitro Effects of Dexamethasone on Sheep Lens Glucose-6-Phosphate Dehydrogenase
Sheep eye lens dexamethasone glucose-6-phosphate dehydrogenase
2010/4/21
Glucose-6-phosphate dehydrogenase (G6PD) enzyme was purified from sheep lenses, and the in vitro effects of dexamethasone on the enzyme's activity were investigated. Sheep lens glucose-6-phosphate deh...
Purification and Characterization of Glucose 6-Phosphate Dehydrogenase from Sheep Liver
Glucose 6-phosphate dehydrogenase purification sheep liver
2010/4/21
Glucose 6-phosphate dehydrogenase (D-glucose 6-phosphate: NADP+ oxidoreductase, EC 1.1.1.49; G6PD) was purified from sheep liver by a simple and rapid method. The purification process consisted of two...
Hydrothermal and Microwave Synthesis of Boron Phosphate, BPO4
Boron Phosphate BPO4 Microwave Synthesis Hydrothermal synthesis
2010/4/22
BPO4 was previously synthesized by the solid state reactions of (NH4)2HPO4 and B2O3 at 1000 oC and was characterized by X-ray powder diffraction and IR methods. We have now succeeded in preparing BPO4...
The Effect of phosphate Ions (PO3-4) on the Corrosion of Iron in Sulphat Solutions
phosphate Ions (PO3-4) Corrosion Iron Sulphat Solutions
2010/6/29
The effect of phosphate ions on the corrosion of iron in sulphate solutions at different temperatures (293 K, 313 K, 333 K and 353 K) and at different pH (pH=2.1, 7.2 and 12.3) values was investigated...
Synthesis and Characterisation of Anhydrous Magnesium Phosphate Mg3(PO4)2
Synthesis Characterisation Anhydrous Magnesium Phosphate Mg3(PO4)2
2010/8/19
The synthesis and characterization of anhydorus Mg3(PO4)2 was investigated. Mg3(PO4)2 is reported to have similar structural arrangements with Co3(PO4)2 and g-Zn3(PO4)2 compounds. The sample was prepa...