被吸附物
- 与 被吸附物 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Sorce water is continually passed through the bed in a downflow or upflow mode until the adsorbent is exhausted,as evidenced by the appearance of unwanted contaminant at an acceptable concentration in the bed effluent.
原水不断的从上面或者下面流过,直到吸附剂被污染了,或者明显的看到不需要的污染物在以一个不可以接受的浓缩浓度在床的流出物中。
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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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In addition, the relation between AVS in sediments and heavy metals in overlying water was poorly studied.
AVS的存在增加了沉积物的吸附容量,但AVS经过酸化被除去后,与沉积物结合的重金属元素就会释放出来。
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As the RE ions concentration in groundwater increases or the surface sites on Mn-Fe oxide become saturated, RE ions may sorb via surface precipitation, then surface precipitation become the dominant sorption mechanism.
当离子浓度低时,形成表面络合物是占统治地位的吸附机制;当氧化物/水体系中离子浓度大时,金属离子除在表面形成表面络合物外,也可能形成表面氢氧化物沉淀,直到氧化物表面吸附点位被全部占满,这时表面沉淀则变成主要的吸附机制。
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As the susceptive part of such sensor, micro-cantilever is coated on a thin film to adsorb the analytes in environment.
作为该传感器中的敏感元件,微悬臂的表面会涂镀一层敏感层以吸附环境中的被测物。
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The topology models of MFIand MOR were built and the method of Configurational-bias Monte Carlosimulation was used for investigating the adsorption and distributions of ethanethiolas adsorbate in MFI and MOR type zeolites. The diffusion of ethanethiol in MFI andMOR type zeolites was studied by molecular dynamics simulation.The results show, the concentration of Zn2+ is the most important factor of theloading quantity of zeolite 13X and alumina, and the temperature secondly. The pHvalue which range from 2 to 3 effects on the loading quantity faintly.
构建了MFI 和 MOR 两种拓扑结构沸石的数学模型,以乙硫醇分子作为被吸附的目标物,采用偏倚蒙特卡罗方法模拟乙硫醇在MFI和MOR沸石上的吸附行为及分子分布密度,并利用分子动力学模拟乙硫醇在这两种拓扑结构的扩散行为,为实现面向硫化物进行吸附剂的微观结构设计作初步探索。
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The recent advancement of the relevant study on hexavalent chromium pollution in electroplating waste water is reviewed.
Cr主要被吸附在固体物质上面而存在于沉积物中;Cr多溶于水中,而且是稳定的,只有在厌氧的情况下,才还原为Cr。
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Experiments with CrO(superscript 2- subscript 4) as target molecules, and triethyl 12-mercsptododecylammonium immobilized on a microcantilver as the detection probe, were conducted on an atomic force microscope.
以表面修饰了三乙基氢硫基十二基铵层的微悬臂梁为传感元件,以CrO(上标 2-下标 4)为被测物,在原子力显微镜上检测了敏感层吸附CrO(上标 2-下标 4)前后微悬臂梁的5次、6次、7次和8次谐振频率的变化。
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Methods:(1) Dissoluble PGN and CpG DNA were immobilized onto the surface of biotin cuvette for establishing target. Another effective tracking approach was established by immobilizing Escherichia lipid A F583 onto the surface of Non-derivatised cuvett. The biosensor technology was applied to screen anti-inflammatory TCM targeting on three key molecules.(2) The active compositions were isolated by AB-8 macroreticular resin from lycium bark. After the activities of compositions were evaluated, the most effective compositions was confirmed. In vitro, the affinities of different concentrations composition E binding with PGN, CpG DNA and lipid A were measured separately. The effect of composition E on vigor of RAW264.7 cells were tested by MTT and CCK-8, and its inhibition on TNF-α, which was released from RAW264.7 cells induced by PGN, CpG DNA and LPS, was also tested by ELISA. In vivo, murine sepsis models were made by intravenously heat-killed E.coli and heat-killed S.aureus, then protection of composition E on mice sepsis model were observed.
(1)将PGN及CpG DNA包被于生物素样品池,将lipid A包被于非衍生样品池,分别建立以PGN、CpG DNA及lipid A为靶点的技术平台,对114种抗炎中药水提物进行筛选、评价其活性物质含量,并评估出针对上述三种病原分子均具有较高结合活性的中药;(2)利用生物传感器跟踪检测技术、大孔吸附树脂分离技术,从地骨皮中定向分离与PGN、CpG DNA及lipid A均具有较高亲和力的活性组分;在体外实验中,测定不同浓度活性组分与PGN、CpG DNA及lipid A亲和力;MTT法及CCK-8法检测活性组分对RAW264.7细胞活力的影响;ELISA法检测活性组分对PGN(2μg/ml)、CpG DNA(10μg/ml)及LPS(100ng/ml)刺激小鼠RAW264.7细胞分泌TNF-α的抑制作用;在体内实验中,采用尾静脉注射致死剂量热灭活大肠杆菌和热灭活金黄色葡萄球菌,建立细菌脓毒症小鼠模型,观察活性组分对脓毒症模型小鼠的保护作用。
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According to the formation mechanism of sidestream smoke, a special cigarette paper was produced and used to control the release level of the sidestream smoke.
根据侧流烟气的产生机制,一方面研究制备了一种特殊的低侧流烟气卷烟纸,使侧流烟气在逸出烟支燃烧线之前被吸附和分解,控制侧流烟气的释放;另一方面,采用了一定量的膨胀烟丝和烟丝助燃剂,通过减少燃烧底物和使烟丝燃烧更完全来控制侧流烟气的产生。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力