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品评校花校草,体验校园广场哪位好心人帮忙翻译一下吧!谢谢.A novel system for solid sample pretreatment, handling and dosing for analytical atomic spectrometry is described. A primarysolid or liquid sample is vaporized in a graphite furnace and then condensed in a specially designed condensatio_百度作业帮
哪位好心人帮忙翻译一下吧!谢谢.A novel system for solid sample pretreatment, handling and dosing for analytical atomic spectrometry is described. A primarysolid or liquid sample is vaporized in a graphite furnace and then condensed in a specially designed condensation zone. On thefurther transport path, the analyte aerosol can be diluted and distributed in pre-set ratios in the laboratory made flow controlsystem. Applying a corona discharge, aerosol particulates are then quantitatively re-collected by means of intra-furnace electrostaticprecipitation on the platform of another graphite furnace or by external precipitation on one or a set of platforms. This makespossible to produce a set of secondary platforms with equal analyte compositions from one individual primary sample. Suchmultitudes allow sequential multi-element determinations with single-element instrumentation or comparative measurements withdifferent techniques. Furthermore, the described procedure allows external thermal sample pretreatment with preceding pyrolysisand additional vaporization, condensation, and re-precipitation that significantly reduces or removes the sample matrix. Owing todifferent losses, transport efficiencies of electrothermal vaporization (ETV) instrumentation depend on analyte element, matrix,vaporization temperature, ramp rate, and tube history. In order to reduce the losses and therewith such dependencies of the losses,new laboratory constructed ETV unit with analyte condensation in an axially focusing upstream convection zone has beenconstructed. Analytical performance of the new setup is compared with the performance of a commercial end-on flow-throughETV unit when analyzing both liquid dosed samples and certified solid reference materials. The new system shows much highertransport efficiencies that are, in addition, more uniform for elements of different volatility. The effects of chemical samplemodifiers and elements supporting analyte condensation are studied. Most of the analytical measurements were carried out with acontinuum source coherent forward scattering multi-element spectrometer. Comparative measurements were also carried outindependently in the co-authors’ laboratories with atomic absorption and inductively coupled plasma mass spectrometry techniques.\1 2004 Elsevier B.V. All rights reserved.
一个新的制度,对固体样品,处理和配料原子光谱分析描述.一个小的固体或液体样品被蒸发在石墨炉,然后浓缩在特制的凝结 区.关于进一步运输路径,待测气雾剂可稀释和分布在预先设定的比例,在实验室内作流量控制系统.采用电晕放电,气溶胶粒子定量然后再收入内炉静电除尘在月台另一石墨炉或 由外部降雨对一个或一套平台.这使得可能产生一套二手平台与平等analyte作文从一个个体小样本.这种multitudes允许顺序多元素测定与单元素或仪器测量比较用不同方法.此外,在描述的程序允许外部散热样品上解和额外的蒸发,凝结,而再析出,大大降低或消除了样品.由于不同的损失,运输效率电热蒸发(ETV)仪表取决于待测元素矩阵,蒸发温度,爬坡速度,与管的历史.为了减少损失,therewith这些属地的损失,新的实验室建成电视股analyte凝结轴上游为重点的传送带已经建成.分析性能的新格局,是与绩效商业端流通过电视股分析 液体注入样品和固体认证参考资料.新系统具有更高的运输效率所,此外,还有统一的内容不同的波动.影响的化学品modifiers和要素配套analyte凝结的研究.大部分的分析测试中进行了连续光源相干散射的多元素谱仪.对比观测也进行了独立的合著实验室用原子吸收和电感耦合等离子体质谱 技巧.2004elsevier乙诉版权所有.帮忙翻译一下吧!谢谢_百度知道
帮忙翻译一下吧!谢谢
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提问者采纳
42.兄弟俩注意到当他们燃烧纸时,灰飘向了空中
全部都需要翻译,可以帮我一下吗?谢谢
法国兄弟,J和JM是法国南部小镇A当地的造纸商。42那句
再拍一张,左边单词看不到
那已经拍完了
可以移动的
他们想火焰的热和烟能产生一种特殊的推动力,他们想到利用烟和热发明一种飞行器来带他们离开地面。
在日,M兄弟成功发射了一个由纸和布组成的气球。为了升起气球,他们在气球下面燃烧了稻草,木头和干马粪的混合物。
当稻草燃烧时,它释放的热量使气球浮了起来。木头和马粪产生了大量烟, 帮助保持火焰较低燃烧,从而降低气球着火的风险。
兄弟俩太紧张了不能自己尝试他们的发明,所以他们放了一只绵阳,一只鸭子和一只公鸡,看看会发生什么。气球飞上了天空并在八分钟后安全着陆。
日,热气球在巴黎展出给所有人看。
气球上是兄弟俩最亲密的朋友PR和FL。气球成功发射,并飞到了巴黎上空500英尺高。最终着落在几里外的葡萄园。
当热气球落在葡萄园时,当地农民竞相拿着棍子朝向它,准备攻击这个天上来的奇怪物体。为了阻止农民破坏气球,P和F向他们提高了一瓶香槟,同时感谢农民允许他们降落在农民的地里。
今天,为了纪念第一次勇敢的飞行,通常在坐热气球后喝香槟酒。
给个好评吧,手酸了&#128554;
提问者评价
太给力了,你的回答完美地解决了我的问题,非常感谢!
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43.羊毛和粪便产生了很多的烟雾并且帮助燃烧的火焰保持较低,这样降低了气球起火的风险。
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