吸附
- 与 吸附 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The adsorption of Lutetium on the peat is studied under static conditions. The adsorption ratio and adsorption rate for Lutetium onto peat are so high that the surface complex reaction reaches equilibrium. The adsorption of Lutetium is not pH and ion strength dependent. The kinetic process of adsorption can be described by the Elovich equation excellently among five kinds of classical kinetic models, and the adsorption isotherm fits both the Langmuir equation and Freundlich equation very well by means of regression analyses.
静态条件下泥煤对溶液中Lu(上标 3+)的吸附率较高,而且吸附速度较快,镥与泥煤能迅速发生表面络合反应达到平衡。pH值和离子强度对低浓度镥吸附动力学影响不大。5个经典动力学方程中Elovich方程能较优地描述泥煤吸附Lu(上标 3+)的过程。
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Based on theoretical calculation of electronegativity of groups offlotation-reagent and method of infra-red adsorption spectroscopy, the collection andadsorption of α-nitroso-β-naphthol in hematite flotation have been studied. The chemicaladsorption seems to be predominant owing to formation of pentacyclic nitrosyl chelate com-pound by atoms of nitrosyl bond in α-nitroso-β-naphthol together with Fe~(3+) on hematitesurface.
研究了α-亚硝基β-萘酚对赤铁矿的捕收性能及吸附规律,导出了吸附方程和吸附速率方程用药剂基团电负性理论计算以及红外吸收光谱法论述了其作用机理α-亚硝基β—萘酚主要是以N O键合原子与赤铁矿表面的Fe形成N O五元环螯合物而化学吸附。
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The conclusions were as follows: theνO-H andνC=O IR absorption maxima shifted towards higher wave numbers after imprinting 17β-estradiol on TFMAA-co-TRIM copolymer with the red shift of theνO-H groups being apparent after precipitation polymerization for 16h while that forνC=O groups being observed after polymerization for 24h. A strong interaction between TFMAA and 17β-estradiol was confirmed by the high selectivity for 17β-estradiol, as indicted by the values of the separation factor of isomers of 17β-estradiol/17α-estradiol (2.28) and the imprinted factor (3.01). Particle diameter of TFMAA-co-TRIM polymer was between 300 nm and 1.5μm, which suited well for solid phase sorbent throughout at low column pressure. The recognition of imprinting TFMAA-co-TRIM polymer for sterol molecules was driven by enthalpy eluted with acetronitile, and low temperature was in favor of the separation of sterol structure analogues on imprinting column. TFMAA-co-TRIM polymer possessed of determinate anti-heat stability, with melting point beginning at 255.84℃, Tp=257.40℃, control TFMAA-co-TRIM polymer and imprinting TFMAA-co-TRIM polymer were respectively decompounded at 267.79℃and 343.11℃, and solid micro-extraction noddle prepared by the special polymerization also showed definite recognition for 17β-estradiol by GC/MS detecting at 270℃. By selection of various washing and elution solvents, elution reagents of close polymerization system were of more advantage in template molecules retention and recognition on molecularly imprinted solid phase extraction column. At a certain extent, progesterone, 17α-estradiol, 17β-estradiol and 4-androstene-3, 17-dione could be intercepted on the MISPE column. Especially, MISPE had high selectivity for progesterone, and imprinting TFMAA-co-TRIM polymer could achieve adsorption balance within 50 min by absorption kinetics test for 17β-estradiol. However, MISPE column showed better selectivity and enrichment property for 17β-estradiol than C18 and CSPE columns according to the data from HPLC and GC/MS analyses. Recovery of 17β-estradiol on MISPE column was up to 85.5% while when prime extracting solution of milk powder was sampled, the recovery of CSPE and C18 columns were 43.7% and 30.7%, respectively.
通过研究阐明:紫外聚合产物TFMAA-co-TRIM中的νO-H振动吸收峰在聚合16h后红移,νC=O振动吸收峰在聚合24h后红移;TFMAA-co-TRIM对雌二醇异构体的印迹因子达到了3.01,α为2.28,优于其它功能单体参与得到的聚合物识别特性;TFMAA-co-TRIM聚合物粒径介于300 nm至1.5μm之间,作为色谱固定相具有良好的通量和低的柱压;在乙腈流动相中,TFMAA-co-TRIM分子印迹固定相的分离过程主要被焓驱动,低温有利于分子印迹固定相分离甾醇结构类似物;TFMAA-co-TRIM分子印迹聚合物在255.84℃时开始熔融,Tp=257.40℃,聚合物CP的降解温度在267.79℃,MIP降解温度在343.11℃,制备的固相微萃取头初步经GC/MS 270℃的耐热性测定;不同的洗提溶剂筛选证明了选择接近聚合溶剂的洗脱体系更有利于MISPE发挥识别效应;分子印迹固相萃取柱对孕酮、17α-雌二醇、17β-雌二醇和雄烯二酮都具有不同程度的保留特性,可作为此类化合物的吸附材料,特别对孕酮强保留的富集特性,可作为孕酮的选择性识别吸附剂,其分子印迹聚合物对17β-雌二醇的吸附动力学测定显示在50 min内基本达到吸附平衡,具有作为传感器核心敏感材料的潜力;对比萃取奶粉中17β-雌二醇性能,MISPE柱比非分子印迹固相萃取柱和C18柱具有更高的保留,回收率依次为85.5%,43.7%和30.7%。
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According to the analysis of density of state and charges density, we found that ozone molecular was chemically adsorbed on the bridge site of S1 as ozonide, and ozone molecule decomposed into one adsorbed surface oxygen atom and one free oxygen molecule.
态密度和电荷密度分析结果进一步证实了O3分子在S1上吸附是桥位化学吸附,形成表面臭氧化物,在S2上吸附分解为1个被吸附的表面氧原子和1个自由氧分子。
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The performance of static adsorption of phenolic compounds onto this kind of resin was i...
研究了该树脂对水溶液中酚类化合物的吸附性能,并与NKA-II吸附树脂进行了比较,结果表明,固化单宁大孔吸附树脂对水溶液中苯酚的吸附能力高于NKA-II,这主要得益于树脂表面的酚羟基。
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The adsorption properties of the function fiber in solution for transition metal ion such as Zn2+,Cd2+,Hg2+etc., were studied and the effects of temperature, concentration, pHon adsorption were also determined. The results showed that the fiber exhibited fairly good adsorption properties, and the adsorption capacities for Zn2+.Cd2+,Hg2+ were up to 196.79mg/g, 275.40mg/g and 6,84.01mg/g respectively.
又研究了该纤维材料在水溶液中对Zn2+、Cd2+、Hg2+等过渡金属离子的吸附性能,测定了温度、起始浓度、PH对吸附性能的影响,结果表明该功能纤维对部分过渡金属二价离子有良好的吸附,对zn2+、Cd2+、Hg2+的吸附量分别为196.79mmg/g、275.40rmmg/g、684.01mmg/g。
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SO2 remove capacity of activated carbon modified by potassium iodide, copper sulphate and nitric acid increased by 116%, 25%-and 16.7% over that of activated carbon unmodified.
此外,烟气中的O_2能增强SO_2在活性炭上的吸附,烟气中的H_2O也显著增强SO_2在活性炭上的吸附,SO_2吸附量的增加来源于SO_2的化学吸附量。
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Improvement on selectivity and capacity of adsorbents and deep research on mechanism will be the most important research areas.
指出吸附剂吸附选择性及吸附容量的提高和吸附机理的深入研究是今后研究的重要方向。
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The results showed that the fiber had the function of absorbing toluene and trichloroethylene after introducing HEMA into macromolecules, and the absorptive process obeyed Hill equation of sigmoidal model.Toluene and trichloroethylene absorbency increased with the increase of mass fraction of HEMA,and their maximum absorbency was 10 g/g and 21 g/g,respectively.The ratio of remaining fiber also increased with the increase of mass fraction of HEMA to make organic liquid retention ratio strengthen.Furthermore,dynamic mechanical performance of the fiber was affected by mass fraction of HEMA obviously, and the segments movement was influenced more obviously.At the same time,mass fraction of HEMA had a great impact on the surface and cross section morphologies,especially,many cavities existed in surface, and cross section had a lot of holes with asymmetric size when mass fraction of HEMA was equal to 15 wt%.
结果表明,HEMA引入大分子后,所得纤维对有机液体甲苯、三氯乙烯具有吸附功能,且吸附过程符合sigmoidal模型中的Hill方程;随HEMA质量分数的增加,纤维对甲苯和三氯乙烯的饱和吸附量增大,对甲苯和三氯乙烯的最大吸附量分别可达10 g/g和21 g/g;随HEMA质量分数的增加,纤维剩余率增加的同时,使纤维对甲苯和三氯乙烯的握持能力增强;HEMA质量分数对纤维动态力学性能有突出影响,特别是链段运动受其影响更为明显;HEMA质量分数对纤维表面和断面形貌均有显著影响,特别是当HEMA质量分数为15 wt%时,所得纤维表面出现了许多空洞,其断面存在许多尺寸不均的空洞。
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The characterization of cassava absorbent was measured by SEM, the specific surface area of cassava absorbent was calculated based on BET two parameter theory and the absorption isotherm of cassava absorbent was analysed with Sircar model prediction model.
对木薯吸附剂进行了SEM表征,应用BET二参数理论计算木薯吸附剂的比表面积,对木薯吸附剂的吸附等温线进行Sircar模型预测和分析。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。