英語高手給翻譯一下啊 不要用在線翻譯器 那個不正確 急哦
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本實驗采用共沉淀法制備Fe3O4納米顆粒,以硅烷偶聯(lián)劑巰基丙基三甲氧基硅烷作為添加劑,硼酸化鉀作為還原劑,在銀氨溶液中制備出具有核殼結(jié)構(gòu)的Fe3O4/Ag 納米復(fù)合粒子。以堿性品紅為探針分子,測量制備出的Fe3O4/Ag納米復(fù)合粒子的表面增強拉曼光譜。 表面增強... 本實驗采用共沉淀法制備Fe3O4納米顆粒,以硅烷偶聯(lián)劑巰基丙基三甲氧基硅烷作為添加劑,硼酸化鉀作為還原劑,在銀氨溶液中制備出具有核殼結(jié)構(gòu)的Fe3O4/Ag 納米復(fù)合粒子。以堿性品紅為探針分子,測量制備出的Fe3O4/Ag納米復(fù)合粒子的表面增強拉曼光譜。 表面增強拉曼光譜是一種非常有效的探測界面特性和分子間相互作用、表征表面分子吸附行為和分子結(jié)構(gòu)的工具,而活性基底的制備是獲得SERS信號的前提。 實驗結(jié)果表明:Fe3O4@Ag納米復(fù)合粒子是很好的活性基底,這對核殼結(jié)構(gòu)的納米復(fù)合粒子在生物醫(yī)學(xué)方面的應(yīng)用有了進一步的認(rèn)識。 展開
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- moonniao 2011-06-14 00:00:00
- This experiment uses Fe3O4 nanoparticles prepared by coprecipitation, to Mercapto propyl silane coupling agent three dimethoxy silane as additive, potassium Borate as a reducing agent, in the preparation of silver in the ammonia solution of Fe3O4/Ag Nano-composite particles with core-shell structure. With rosaniline as the probe molecule, preparation of measurement of the surface-enhanced Raman spectrum of Fe3O4/Ag Nano-composite particles. Detection of surface-enhanced Raman spectroscopy is a very efficient interface features and interactions between molecules, and molecular structure characterization of surface molecular adsorption behavior of tools, and preparation of active substrate is a prerequisite for access to SERS signals. Experimental results indicate that the active substrate of Fe3O4@Ag nanocomposite particles is very good, the core-shell structure composite nano-particles in bio-medical applications has been further understanding.
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- 英語高手給翻譯一下啊 不要用在線翻譯器 那個不正確 急哦
- 本實驗采用共沉淀法制備Fe3O4納米顆粒,以硅烷偶聯(lián)劑巰基丙基三甲氧基硅烷作為添加劑,硼酸化鉀作為還原劑,在銀氨溶液中制備出具有核殼結(jié)構(gòu)的Fe3O4/Ag 納米復(fù)合粒子。以堿性品紅為探針分子,測量制備出的Fe3O4/Ag納米復(fù)合粒子的表面增強拉曼光譜。 表面增強... 本實驗采用共沉淀法制備Fe3O4納米顆粒,以硅烷偶聯(lián)劑巰基丙基三甲氧基硅烷作為添加劑,硼酸化鉀作為還原劑,在銀氨溶液中制備出具有核殼結(jié)構(gòu)的Fe3O4/Ag 納米復(fù)合粒子。以堿性品紅為探針分子,測量制備出的Fe3O4/Ag納米復(fù)合粒子的表面增強拉曼光譜。 表面增強拉曼光譜是一種非常有效的探測界面特性和分子間相互作用、表征表面分子吸附行為和分子結(jié)構(gòu)的工具,而活性基底的制備是獲得SERS信號的前提。 實驗結(jié)果表明:Fe3O4@Ag納米復(fù)合粒子是很好的活性基底,這對核殼結(jié)構(gòu)的納米復(fù)合粒子在生物醫(yī)學(xué)方面的應(yīng)用有了進一步的認(rèn)識。 展開
2011-06-13 12:25:21
468
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- 英語高手幫忙翻譯一下
- ThequalitysystemofthecompanyisinconformitywithISO9002.Makingcomprehensiveuseofbiotechnology,thecompanyspecializesinmanufacturingandsellingC-4seriesorganicacidsandchiralpr... The quality system of the company is in conformity with ISO 9002 . Making comprehensive use ofbiotechnology, the company specializes in manufacturing and selling C-4series organic acids and chiral products. These products are widely used in many fields such as food, phamaceutical and chemical industries, and are well accepted by the overseas markets. The man products are L-Malic acid , DL-Malic acid, L(+)-Tartaric acid , Fumaric acid, Maleic acid and other organic acids. Annual productivity amounts to 20,000 tones. The company has become an important manufacturer of C-4 series organic acids in the world . All the products of the company have respectively met the different international aadvanced standards such as Food chemicals Codex, U.S. Pharmacopoeia ,British Pharmacopoeia and the products have obtained Star-K Kosher certificate. Above 70% of the Companys products are exported to Japan, Europe, Australias, the United states and middle East , and they are renown and well recognized in the international markets. The company will devote itself to research and development of enzyme technology and organic electrochemistry. It will continuously introduce new food additives, chiral pharmaceutical intermediates, chiral auxiliaries and chiral drugs. Depending on superior quality, good service and high reputation, the company is willing to establish a long-term mutually beneficial business partnership with overseas customers and continue contribute to the happy life of humans. 展開
2009-09-17 10:19:02
583
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- 急急急?。。。∮⒄Z好的能幫忙翻譯一下嗎 別用任何翻譯器??!
- 將一粒種子放入裝滿泥土的塑料杯子里將圓筒里的ph5倒十毫升倒入燒杯里將燒杯中的十毫升倒入塑料杯子里... 將一粒種子放入裝滿泥土的塑料杯子里 將圓筒里的ph5 倒十毫升倒入燒杯里 將燒杯中的十毫升倒入塑料杯子里 展開
2013-10-16 03:58:54
581
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- 求日文翻譯,不要翻譯器,迅速給分C1
2012-09-16 02:22:56
619
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- 高分求高手翻譯,不要機械翻譯
- Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials,because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review fo... Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials,because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review focuses on the recent research advances in bimetallic DENs with respect to their synthesis,characterization,and applications as catalysts.Bimetallic DENs can be made mainly via three routes:co-complexation,sequential loading,and partial displacement.The research in bimetallic DENs has been significantly promoted by the advancement of characterization instruments.The performances of bimetallic DENs as homogeneous and heterogeneous catalysts in organic synthesis have been compared with both monometallic DENs and their physical mixtures.It is concluded that the synergistic electronic effect in bimetallic nanoparticles enhances their catalytic activities. 能翻譯多少都可以的 展開
2009-03-24 13:04:22
368
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- 請高手幫忙翻譯翻譯啊,通順即可,完全用翻譯器的請繞道~謝謝~~
- Interim Report on Pressure Effect on Waxy-Crude Pipeline-Restart Conditions Investigated by a Model System Yield Phenomenon and Pipeline Restart. Yield stress is the threshold stress required to initiate ?ow of a viscoplastic ?... Interim Report on Pressure Effect on Waxy-Crude Pipeline-Restart Conditions Investigated by a Model System Yield Phenomenon and Pipeline Restart. Yield stress is the threshold stress required to initiate ?ow of a viscoplastic ? uid. Waxy crude-oil gels are viscoplastic in nature and exhibit time-dependent Bingham plastic ?ow behavior during restart under imposed constant pumping pressure. The yielding process of a gel is a complicated process, and different models have been proposed to explain this phenomenon. Wardhaugh and Boger (1991) defined yield stress as the “shear stress at which the gelled oil ceases to behave as a Hookean solid.” Chang et al. (1998) adopted a three-yield stress concept: elastic limit (which defines the onset of viscoelastic creep), static (where fracture occurs), and dynamic yield stress (which describes the broken down structure after yielding). Among these three, only the static yield stress is used to design the restart pump for initiation of flow after shut-in. Several types of apparatus and different techniques (direct and indirect) have been used for determining the yield stress. The results obtained and conclusions regarding their validity and usefulness differ widely. Setups used are capillary U-tubes, large pilot pipeline facilities, lab-scale model pipelines, controlled-stress or -shear rotational rheometry experiments (CSR). The capillary tube and pilot-scale pipeline measurement tech-niques have been criticized as being unsuitable for understanding the yielding behavior of statically cooled waxy crude oils because of nonlinear pressure distribution, pipe compressibility effects, porosity of wax structure, and contraction effects (Wardhaugh and Boger 1991). However, the authors added that an exception to their conclusion was the work by Ronningsen (1992), where reasonable estimates of the yield stress as compared to model pipeline results were obtained with a constant stress rheometer. Recently, Lee et al. (2007) also reported the consistency between the concentric rheometer and a model pipeline system. In fact, model pipeline test is the most common laboratory method resorted to in gel strength measurement because of its geometrical resemblance to the real pipeline. In such tests, gel is formed under controlled conditions (cooling rate, aging temperature, etc.) and pressure is then slowly applied on one end of the gel until flow is observed. The gel strength (τ) is then calculated by: 公式1 展開
2012-05-03 00:39:39
459
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- 英語翻譯,很專業(yè)的生物英語,翻譯器的不要,謝謝
- Results:Membranefractionsfromthree-dayand200mMsalt-treatedArabidopsissuspensionplantswereisolated,followedbyproteaseshavingandenrichmentusingZirconiumion-chargedmagneticb... Results: Membrane fractions from three-day and 200 mM salt-treated Arabidopsis suspension plants were isolated, followed by protease shaving and enrichment using Zirconium ion-charged magnetic beads, and tandem mass spectrometry analyses. From this isolation, 18 phosphorylation sites from 15 Arabidopsis proteins were identified. A unique phosphorylation site in 14-3-3- interacting protein AHA1 was predominately identified in 200 mM salt-treated plants. We also identified some phosphorylation sites in aquaporins. A doubly phosphorylated peptide of PIP2;1 as well as a phosphopeptide containing a single phosphorylation site (Ser-283) and a phosphopeptide containing another site (Ser-286) of aquaporin PIP2;4 were identified respectively. These two sites appeared to be novel of which were not reported before. In addition, quantitative analyses of protein phosphorylation with either label-free or stable-isotope labeling were also employed in this study. The results indicated that level of phosphopeptides on five membrane proteins such as AHA1, STP1, Patellin-2, probable inactive receptor kinase (At3g02880), and probable purine permease 18 showed at least two-fold increase in comparison to control in response to 200 mM salt-stress. 展開
2011-06-07 04:07:51
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- 請問各位英語高手,對開多葉調(diào)節(jié)閥英語怎么翻譯啊?
2010-08-12 09:01:12
472
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- 射頻電容液位計英語怎么翻譯?除了用翻譯器翻譯的Rf capacitor applications
2012-06-17 15:56:55
428
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- 50分!高手幫忙翻譯一下
- LabVIEWisapowerfulandcomplexprogrammingenvironment.LabVIEWisshortforLaboratoryVirtualInstrumentEngineeringWorkbench.Itisapowerfulandflexibleinstrumentationandanalysissoft... LabVIEW is a powerful and complex programming environment. LabVIEW is short for Laboratory Virtual Instrument Engineering Workbench. It is a powerful and flexible instrumentation and analysis software development application created by the folks at National Instruments—a company that creates hardware and software products that leverage computer technology to help engineers and scientists take measurements, control processes, and analyze and storem data. National Instruments was founded over twenty-five years ago in Austin, Texas by James Truchard (known as Dr. T), Jeffrey Kodosky, and William Nowlin. At the time, all three men were working on sonar applications for the U.S. Navy at the Applied Research Laboratories at The University of Texas at Austin. Searching for a way to connect test equipment to DEC PDP-11 computers, Dr. T decided to develop an interface bus. He recruited Jeff and Bill to join him in his endeavor, and together they successfully developed LabVIEW and the notion of a “virtual instrument.” In the process they managed to infuse their new company—National Instruments—with an entrepreneurial spirit that still pervades the company today. Engineers and scientists in research, development, production, test, and service industries as diverse as automotive, semiconductor, aerospace, electronics, chemical, telecommunications, and pharmaceutical have used and continue touse LabVIEW to support their work. LabVIEW is a major player in the area of testing and measurements, industrial automation, and data analysis. For example, scientists at NASA’s Jet Propulsion Laboratory used LabVIEW to analyze and display Mars Pathfinder Sojourner rover engineering data, including the position and temperature of the rover, how much power remained in the rover’s battery, and generally to monitor Sojourner’s overall health. LabVIEW provides an extensive library of virtual instruments and functions to help you in your programming. It includes conventional program debugging tools with which you can set breakpoints, single-step through the program, and animate the execution so you can observe the flow of data. 畢業(yè)設(shè)計急用,望高手幫忙翻譯一下 展開
2007-06-12 15:44:11
687
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- 翻譯翻譯,請高手幫我翻譯一下這個說明
- Followthesysteminstallationinstructionscarefullyandinthespecifiedorder.ThesoftwaremustbeinstalledonthecomputerbeforeconnectingtheUSBcable.2.1FacilitiesRequirementsFacilit... Follow the system installation instructions carefully and in the specified order. The software must be installed on the computer before connecting the USB cable. 2.1 Facilities Requirements Facilities requirements for the alpha-SE system are listed in Table 2-1 and the system dimensions are given in Fig. 2-1. As shown in Fig. 2-2, the alpha-SE tool requires a clear work area of 20 by 18 inches (500 by 460 mm), excluding the operator computer. 2.2 Unpacking the Hardware Opening the Shipping Container Move the alpha-SE shipping container to the area where the tool will be installed. Open the container and remove the top and side pieces of packing foam. Carefully remove all smaller components from the shipping container, verifying that you received all components, as shown in Fig. 2-3. Finally, remove the alpha-SE ellipsometer and position it on your clear 20” by 18” (510 by 460 mm) workspace. Caution: The alpha-SE ellipsometer without sample chuck weighs approximately 37 lbs. (16 kg.). Please find an assistant to lift the alpha-SE unit out of the shipping carton and on to clear work surface. 展開
2008-06-22 06:30:36
888
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- 哪位英語高手幫幫忙,翻譯英語文章!謝謝1
- 英語高手,謝謝了!ThecatalystsupportwasimpregnatedwithacetonesolutionofRuCl3.nH2Ouptorutheniumcontentof4w%,understirringfor6h.Afterconcentrationinarotaryevaporator,theobt... 英語高手,謝謝了! The catalyst support was impregnated with acetone solution of RuCl3.nH2O up to ruthenium content of 4 w%, under stirring for 6 h. After concentration in a rotary evaporator, the obtained material was dried in air at 383 K overnight and subjected to preliminary reduction with a 1N2/3H2 stream at 698 K, and then cooled in 1N2/3H2 atmosphere. The potassium promoter was introduced by incipient wet impregnation with KNO3 solution at room temperature with molar ratio of K+ /Ru = 5/1. After stirring for 6 h and infusing for 24 h, the samples were dried in a rotary evaporator at 343K and then dried in the air at 383K for 12 h. The ammonia synthesis activities of the catalysts with about 35-60 meshes were evaluated by 1N2/3H2 flow of 2100 mL/h at 0.2 MPa from 623 K to 773 K. The amount of effluent ammonia was determined by titration method. As we can see from the Table 1, under the same reaction conditions, the catalyst K-Ru/Mg(Al)O exhibited the highest activity, 38.42 mL NH3?h-1?g-1 at 673K, 3 times more active than K-Ru/MgO, 12.88 mL NH3?h-1?g-1 at 748K. This means that selection of supports takes great effects on the activity of catalysts. The ammonia synthesis activity of different supports are K-Ru/Mg(Al)O > K-Ru/Mg-Al-Ca(1) > K-Ru/Mg-Al-Ca(2) > K-Ru/Al2O3 > K-Ru/CaO > K-Ru/MgO. The combinatorial supports showed higher activity than single supports. However, the sequence of temperature corresponding to the highest activity is just opposite to that of the activity. The optimal temperature for K-Ru/Mg(Al)O, 673K, is the lowest of all, on the contrary, that of K-Ru/MgO is the highest, 748K. The Mg(Al)O has a larger surface area of 140.95 m2?g-1 , similar to γ-Al2O3, 110-180 m2?g-1 . The other two combinational supports have little surface areas but higher activities than Al2O3. It suggested that the activity of the catalyst is influenced not only by the dispersion of Ru crystals but also by the crystal structure of the supports. Table 1 Ammonia synthesis activities and BET surface areas Catalyst Optimal activity Highest activity Surface area of support temperature(K) (NH3/mL?h-1?g-1) (m2?g-1) K-Ru/MgO 748 12.88 K-Ru/Al2O3 698 23.79 K-Ru/CaO 723 23.22 K-Ru/Mg(Al)O 673 38.42 140.95 K-Ru/Mg-Al-Ca(1) 698 30.75 29.10 K-Ru/Mg-Al-Ca(2) 698 26.12 14.69 Acknowledgments This work was supported by the NNSF of China (20273053, 20023001 and 29933040), the 973 Programming (001CB108906) and the NSF of Fujian province (E0310001). References 1. C. J. H. Jacobsen, S. Dahl, P. L. Hansen et al., J. Mol. Catal. A, 2000, 163, 19. 2. F. Cavani, F. Trifiro, A. Vaccari, Catal. Today, 1991, 11, 173. 展開
2018-11-14 18:00:49
318
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- 英語高手幫忙翻譯段英文 謝謝!!
- In this paper, the degradation of an azo dye Orange G (OG) on nitrogen-doped TiO2 photocatalysts has been investigated under visible light and sunlight irradiation. Under visible light irradiation, the doped TiO2 nanocatalysts demonstrated ... In this paper, the degradation of an azo dye Orange G (OG) on nitrogen-doped TiO2 photocatalysts has been investigated under visible light and sunlight irradiation. Under visible light irradiation, the doped TiO2 nanocatalysts demonstrated higher activity than the commercial Dugussa P25 TiO2, allowing more ef?cient utilization of solar light, while under sunlight, P25 showed higher photocatalytic activity. According to the X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV–vis spectra analyses, it was found that both the nanosized anatase structure and the appearance of new absorption band in the visible region caused by nitrogen doping were responsible for the signi?cant enhancement of OG degradation under visible light. In addition, the photosensitized oxidation mechanism originated from OG itself was also considered contributing to the higher visible-light-induced degradation ef?ciency. The effect of the initial pH of the solution and the dosage of hydrogen peroxide under different light sources was also investigated. Under visible light and sunlight, the optimal solution pH was both 2.0, while the optimal dosage of H2O2 was 5.0 and 15.0 mmol/l, respectively. Azodyes, which are characterized by the presence of one or more azo bonds ( N N ), are among the most notorious widespread environmental pollutants associated with textile,cosmetic, food colorants, printing, and pharmaceutical indus-tries. Because of their non-degradability, toxicity, potential mutagenicity and carcinogenicity, wastewaters originating from these dyes production or application industries pose a major threat to the surrounding ecosystems and human beings’ health.[1–3].Environmental concerns and the need of meeting the strin-gent international standards for rejecting wastewaters has made the development of novel and cost-effective processes for the puri?cation of azo dyes ef?uents an issue of major technological importance. 展開
2011-05-06 19:00:45
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- 哪位英語高手幫我翻譯幾個地名?
- 以下幾個地名和句子:(是可書面應(yīng)用的,不要口語,如是口語請注明) 1. 潘家園舊貨市場 2. 長安大戲院 3. 西單圖書大廈 4. 京廣ZX 5. 什剎海 6. 秀水 7. 建國門地鐵站 8. 百年奧運,夢想成真。
2005-08-23 00:00:40
342
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- 請高手幫我翻譯一下這一段。。。
- Carbonnanomaterialsarenovelmanufacturedmaterials,havingwidespreadpotentialapplications.Adsorptionofhydrophobicorganiccompounds(HOCs)bycarbonnanomaterialsmayenhancetheirto... Carbon nanomaterials are novel manufactured materials, having widespread potential applications. Adsorption of hydrophobic organic compounds (HOCs) by carbon nanomaterials may enhance their toxicity and affect the fate, transformation, and transport of HOCs in the environment. In this research, adsorption of naphthalene, phenanthrene, and pyrene onto six carbon nanomaterials, including fullerenes, single-walled carbon nanotubes , and multiwalled carbon nanotubes was investigated, which is the first systematic study on polycyclic aromatic hydrocarbons (PAHs) sorption by various carbon nanomaterials. All adsorption isotherms were nonlinear and were fitted well by the Polanyi-Manes model (PMM). Through both isotherm modeling and constructing “characteristic curve”, Polanyi theory was useful to describe the adsorption process of PAHs by the carbon nanomaterials. The three fitted parameters (Q0, a, and b) of PMM depended on both PAH properties and the nature of carbon nanomaterials. For different PAHs, adsorption seems to relate with their molecular size, i.e., the larger the molecular size, the lower the adsorbed volume capacity (Q0), but higher a and b values. For different carbon nanomaterials, adsorption seems to relate with their surface area, micropore volume, and the volume ratios of mesopore to micropore. Quantitative relationships between these sorbent properties and the estimated parameters of PMM were obtained. These relationships may represent a first fundamental step toward establishing empirical equations for quantitative prediction of PAH adsorption by carbon nanomaterials and possibly other forms of carbonaceous (geo-) sorbents, and for evaluating their environmental impact. In addition, high adsorption capacity of PAHs by carbon nanotubes may add to their high environmental risks once released to the environment, and result in potential alteration of PAHs fate and bioavailability in the environment. 展開
2010-01-13 13:35:43
370
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- 請高手幫忙翻譯一下 3
- 2.2.1. Physical and physicochemical characterization The particle size distribution of the Ch-zeolite was determined using a laser diffraction equipment (CILASk 1064) and standard wet sieving (Mesh Tylerk series). Scanning electron mic... 2.2.1. Physical and physicochemical characterization The particle size distribution of the Ch-zeolite was determined using a laser diffraction equipment (CILASk 1064) and standard wet sieving (Mesh Tylerk series). Scanning electron microscopy (SEM-PHILIPSk XL20) was used for photomicrographs as well as to analyse the Ch-zeolite composition (Energy Dispersion X-ray, EDX). The sample was initially placed in a vacuum chamber for coating with a thin layer (few nanometers) of gold (Au). The specific surface area of the material was measured by the methylene blue technique and by nitrogen gas adsorption methods, with the latter also providing information about particle porosity. In the methylene blue adsorption method, aqueous solutions (50 ml) of methylene blue (100 mg l 1) were agitated using an orbital shaker (Marconik) for an hour at room temperature in the presence of different quantities of the Ch-zeolite (0.05–0.3 g). The suspensions were then allowed to settle for 23 h and the resulting supernatants were centrifuged at 5000 rpm before the analysis of the residual methylene blue concentration. Results obtained correspond to averaged values of three different experiments. The specific surface area was evaluated by the Langmuir model, assuming the formation, at high concentrations, of a dye monolayer and 1.08 nm2 molecule 1, for the cross-sectional area (Van den Hul and Lyklema, 1968). The Ch-zeolite specific surface area was evaluated by the nitrogen gas adsorption method, using automated equipment (Autosorb 1-Quantachrome Instrumentsk), employing multipoint BET isotherm adsorption data fitting. Also from these data, the porosity of the material was evaluated through parameters such as volume of total pores (d < 206 nm), surface area and volume of micropores (d < 2 nm; Micropore Analysis Method). Zeta potential measurements for the natural and ammonia loaded zeolite, as a function of medium pH, were determined using a Zeta Plusk equipment (Brookhaven Instruments). Suspensions (0.01% v/v) of the Ch-zeolite, previously sieved below 37 Am (400 Mesh Tylerk), in a 10 3 mol l 1 solution of KNO3 were used and the medium pH was controlled with the addition of HNO3 (pH< 7) and KOH (pH>7), separately. For the Ch-zeolite saturated with ammonia, suspensions of the material were prepared by the same procedure, except that the sample was loaded with 100 mg NH3–N l 1 of ammonia. 展開
2018-11-22 17:49:22
328
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- 跪求(急求)幫忙翻譯一下
- 無機前處理室主要開展食品樣品中無機檢測進儀器前的預(yù)處理工作。通過向食品樣品中加入強氧化性酸,采用微波消解技術(shù)或電熱板加熱技術(shù)使被測無機組分從復(fù)雜的樣品中分離出來,除去對分... 無機前處理室主要開展食品樣品中無機檢測進儀器前的預(yù)處理工作。通過向食品樣品中加入強氧化性酸,采用微波消解技術(shù)或電熱板加熱技術(shù)使被測無機組分從復(fù)雜的樣品中分離出來,除去對分析測定有干擾的基本物質(zhì),制成便于測定的溶液形式。樣品的預(yù)處理過程都是在無機前處理室進行的。 主要儀器:ETHOS A微波消解儀、SD500電熱板、Mill-Q Advandage A10超純水儀等。 光譜室主要開展食品、飲用水等樣品中重金屬元素含量檢測工作,各類儀器針對不同的物質(zhì)進行檢測有其各自的優(yōu)勢。原子吸收光譜儀耶拿ZEEnie-700系列儀器主要用于鉛、鎘、銅、鉻、錳、鋅、鐵、鈣、鎂、鉀、鈉等項目檢測,雙道原子熒光光度計吉天AFS-820a系列儀器主要用于砷、汞、錫等項目檢測。光譜分析技術(shù)已經(jīng)被廣泛應(yīng)用于食品和水質(zhì)檢測、環(huán)境保護、醫(yī)藥衛(wèi)生等領(lǐng)域。 主要儀器:原子吸收光譜儀耶拿ZEEnie-700系列、雙道原子熒光光度計AFS-820a系列。 承檢項目:食品、飲用水中重金屬鉛、鎘、銅、鉻、錳、鋅、鐵、鈣、鎂、鉀、鈉、砷、汞、錫等。 要英文的謝謝 展開
2013-02-18 02:23:38
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- 有英語高手或者會labview的高手幫忙翻譯下
- LabVIEW就是基于虛擬儀器的開發(fā)環(huán)境,本文闡述了基于虛擬儀器技術(shù)在阻抗參數(shù)測量中的應(yīng)用,根據(jù)電子測量的基本原理、計算方法和流程,利用了LabVIEW的特有語言—G語言—對被測對象進行... LabVIEW就是基于虛擬儀器的開發(fā)環(huán)境,本文闡述了基于虛擬儀器技術(shù)在阻抗參數(shù)測量中的應(yīng)用,根據(jù)電子測量的基本原理、計算方法和流程,利用了LabVIEW的特有語言—G語言—對被測對象進行程序編譯、運行、修改并Z終顯示運行結(jié)果 有高手幫忙翻譯下 展開
2009-06-12 22:57:18
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- 跪求高手猛人幫忙翻譯!?。?!急
- 梨雌蕊RNA的提取及效果分析 梨是全世界一個重要的,分布廣泛的果樹。栽培面積大,歷史悠久。梨也是配子體自交不親和的代表植物之一。S基因是影響植物自交不親和的關(guān)鍵基因,現(xiàn)在世界上共發(fā)現(xiàn)了?個S等位基因,對植物自交不親和機理的研究起著非常重要的... 梨雌蕊RNA的提取及效果分析 梨是全世界一個重要的,分布廣泛的果樹。栽培面積大,歷史悠久。梨也是配子體自交不親和的代表植物之一。S基因是影響植物自交不親和的關(guān)鍵基因,現(xiàn)在世界上共發(fā)現(xiàn)了?個S等位基因,對植物自交不親和機理的研究起著非常重要的作用。 本實驗從?梨雌蕊中提取總RNA,然后運用RT-PCR,RACE等技術(shù)來獲取S15基因的cDNA全長,并用瓊脂糖凝膠電泳,核酸蛋白儀,套式PCE,質(zhì)??寺。康幕驕y序以及生物信息學(xué)軟件來檢測,分析提取RNA的質(zhì)量。實驗結(jié)果得到了高質(zhì)量的RNA以及S15基因cDNA全長。 展開
2007-05-30 15:31:02
454
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