colloidal [kə'lɔidl]
- colloidal的基本解释
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adj.
胶质的, 胶状的, 胶态的
- 相似词
- 拼写相近单词
- colloidality
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This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.
本论文研究胶粒的非平衡不可逆聚集动态学,分为两个部分,第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中,聚集标度性质的普适性,即使用透射电子显微技术观测聚集粒子簇的分形结构,使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学,胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态,当加入电解质NaCl溶液时,碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短,从而降低静电排斥能垒,引起胶粒发生不可逆聚集,加入电解质NaCl的浓度为1.00mol/l时,碱式碳酸钇胶粒进行快速聚集,经历扩散控制聚集机理,形成结构疏松、更为开放的分形聚集粒子簇,其分形维数为1.82,碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律,与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致,表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的,首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数,并且其值与Smoluchowski聚集速率理论预期相符。
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Single component and multi\|component of iron system colloidal catalyst \Ali\|Bu\-3CH\-2CHCH\-2Cl\ were mixed by different ratios in hydrogenated gasoline medium at 25℃.This paper studied the relationship between the nonaqueous systematic electroconductivity and the concentration of catalyst components.In combination with Tyndall effect,polymerization experimental results,Ali\|Bu\-3 existed in associated state and dissociated into ionpair.The reaction between Ali\|Bu\-3 and Fenaph\-2 was the main reaction which formed colloidal core.Ali\|Bu\-3 reacted on CH\-2CHCH\-2Cl and Ali\|Bu\-2Cl was yielded which joined the formation of active center on the surface of colloidal core.The excessive Ali\|Bu\-3 was dissociated into ionpair which formed double electrode layer,and the double electrode layer kept the colloidal particles relatively stable.
研究了在25℃加氢汽油介质中,铁系胶体催化剂[Fenaph2Ali-Bu3―CH2==CHCH2Cl]单组分、多组分按不同配比混合,非水体系电导率与浓度的关系,结合Tyndall效应,聚合实验结果,得出Ali-Bu3以缔合状态存在并解离成离子对它同环烷酸亚铁的作用是形成胶核的主要反应,与氯丙烯反应生成的氯化异丁基铝,在胶核表面参与形成活性中心由过量Ali-Bu3解离的离子对形成的双电层结构,使胶粒保持相对稳定。
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We optimized reaction system for labelling-antibody in which the optimal amount of the purified anti-Stx2B IgG conjugated with colloidal gold beads was 60μg/mL, the purified antibody for E.coli O157 was 57μg/mL, the optimal pH was 8.2, the size of colloidal gold partical was 20nm, the optimization of stabilizing agent was BSA, the optimization buffer was boracic acid buffer with pH 8.2, the optimization of preserving fluid and eluant was boracic acid buffer with pH 8.2 including 5mM NaCl-1%BSA, confining liquid for NC membrane was 0.01% PBST with 3%BSA, the amount of polyclonal antibody against E.coli O157 and Stx2 conjugated with colloidal gold beads for conjugate pad was 3μg respectively, the amount of anti-Stx monoclonal antibody for test line was 0.1μg and 1μg for E.coli O157, the amount of goat anti rabbit IgG for control line of both GICA were 1μg.
测定了胶体金颗粒的最优化反应体系:胶体金颗粒的大小为20nm;抗体与胶体金溶液结合的最佳pH约为8.2;最佳蛋白结合量分别为抗大肠杆菌O157 IgG为57μg/mL,抗重组Stx2B IgG为60μg/mL;最佳稳定剂为BSA;最佳缓冲液为pH8.2硼酸溶液;最佳金标保存液和洗涤液为5mM NaCl-1%BSA的pH 8.2的硼酸缓冲液;NC膜的封闭液为3%BSA的0.01mol/L PBST;Stx2试纸条和大肠杆菌O157试纸条的质控线上的羊抗兔IgG的多克隆抗体最佳点样量均为1μg,其检测线的抗Stx2的单克隆抗体的点样量为0.1μg、抗大肠杆菌O157的单克隆抗体的点样量为1μg,结合垫上的金标抗大肠杆菌O157和重组Stx2B多克隆抗体点样量均为3μg。
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colloidal sol:溶胶
在1961年,Murphy及Michelson报告说一种氢氧化铝的胶体溶胶(colloidal sol)(胶体系统相似於液体)存在於氧化膜孔洞之底层,如图2.所示. 当氧化膜极化时因氧离子之还原而使溶胶层之pH值变大,变成中性或碱性然后溶胶层变成凝胶(gal)层当施加固定电流密度时,
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colloidal:胶体
要除去这些微细颗粒(通常为胶体(colloidal)物质)须用凝集剂. 凝集沉淀剂使微细和胶体颗粒充电及中和而成为能快速沉降的团块,然后过虑. 这是由于胶体物质带负电荷而相互排斥,直到凝集剂中和电荷并使它们凝结在一起.
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colloidal:胶质的
colloid 胶体 | colloidal 胶质的 | colloidal grout mixer 胶态水泥浆搅拌机
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colloidal:胶体的
胶粒尺寸 colloid size | 胶体的 colloidal | 胶态碳 colloidal carbon
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colloidal:胶状的
colloid 胶体 | colloidal 胶状的 | collop 小肉片
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