F7560060 Silica 5NH 10E 硅胶基质色谱柱,Shodex液相色谱分析相关产品有着近50年的历史目前被广泛的应用于环保、石化、生命科学、食品及农业等不同的科学领域。Shodex色谱柱分类:正反相色谱柱、配位体交换色谱柱、尺寸排阻色谱柱、离子交换\离子色谱柱、亲和色谱柱、手性
F7560061 Silica 5NH 20E 硅胶基质色谱柱,Shodex液相色谱分析相关产品有着近50年的历史目前被广泛的应用于环保、石化、生命科学、食品及农业等不同的科学领域。Shodex色谱柱分类:正反相色谱柱、配位体交换色谱柱、尺寸排阻色谱柱、离子交换\离子色谱柱、亲和色谱柱、手性
Infrared spectra were recorded of NH 3 sorbed on germania-impregnated silica which had been reduced with H 2 (A), samples prepared by reacting silica with Ge(OCH 3) 4 and pyrolizing the methoxy layer in vacuo (B), and degassed GeO 2/SiO 2 (C). Exposing samples A and B to NH 3 ...
Functionalized Silica-Encapsulated Magnetite Nanoparticles doi:10.1166/jnn.2016.10660The immobilization efficiency, antimicrobial activity and recovery of lysosomal enzymes on NH2 functionalized magnetite nanoparticles have been studied under various conditions. The immobilization efficiency depends upon the ratio of...
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Objects of the present invention is a glass composition of the silica-soda-lime type which is used to manufacture the substrate, wherein the glass comprises a component having the following mole ratio,; SiO <Sub>2</Sub> 60 - 80%; Al <Sub>2</Sub> O <Sub>3</Sub> 0 - 4%; ZrO ...
Soda-lime-silica glass compositions and uses there 优质文献 相似文献 参考文献Soda lime-silicatglassammenstninger and uses thereof S Koch,D Jousse,R Gy,... 被引量: 0发表: 1995年 METHOD AND APPARATUS FOR MICROFILTRATION Generally, either lime or soda ash, or both, is added to the water to...
Silica supportedAerobic conditionZinc bromideAn efficient one-pot cross-coupling/1,3-dipolar cycloaddition sequence was developed for a convenient synthesis of 4,5-disubstituted-1,2,3-(NH)-triazoles, starting from various acid chlorides, terminal alkynes and sodium azide in the presence of silica ...
Silica supported ammonium dihydrogen phosphate(NH_4H_2PO_4/SiO_2) is found to be a recyclable heterogeneous catalyst for a rapid and efficient synthesis of various aryl-14-H-dibenzo[a,j]xanthenes with excellent yields under solvent-free conditions.The present methodology offers several advantages ...
SilicaAmmonia vaporsFluorescenceColorimetric analysisIn this study curcumin was immobilized in a silica matrix to overcome its poor aqueous solubility and rapid degradation profile. Two kinds of sol-gel powders based on colloidal silica were synthesized and characterized, one prepared with an ethanolic ...