挥发性元素

比较了烘箱密闭消解和微波密闭消解两种样品消解方法，它们都具有耗酸少（5～10mL）、对环境污染小、挥发性元素回收率高等优点。

Oven and microwave obturation digestion were compared . They both have merits of low acid consume ( 5 ~ 10mL ), low environment pollution and high recoveries of volatile elements .

结果表明：煤中氟属于强挥发性元素，在煤灰中是非浓集的。

Experimental results identified that fluorine in coal belong to volatile elements , fluorine in fly ash and bottom ash were non rich .

电热蒸发-电感耦合等离子体原子发射光谱法测定不同挥发性元素时含氟基体改进剂作用的研究

Determination of Titanium , Nickel and Lead by Electrothermal Vaporization-Inductively Coupled Plasma Atomic Emission Spectrometry With the Use of Fluorine-Containing Matrix Modifier

类地行星挥发性元素普遍亏损很可能是由于太阳星云早期剧烈的太阳活动引起的。

The common depletion of volatile elements in terrestrial planets was probably caused by the early violent activities of the inner solar nebula .

基体改进效应石墨炉原子吸收测定易挥发性元素砷、硒、碲、银、锑和铋

Matrix modification for the determination of volatile elements of arsenic , selenium , tellurium , silver , antimony and bismuth by Graphite Furnace Atomic Absorption Spectrometry

测定了我国5台不同炉型和容量的工业锅炉底灰和飞灰中痕量元素的分布情况，结果表明：流化床燃烧时煤中痕量挥发性元素的蒸发较大；

Measurements were taken of the distribution of trace elements in bottom ash and fly ash for five Chinese industrial boilers of different models and power ratings .

铅是不易挥发性元素，大气中的铅主要集中在大气颗粒物中，其来源主要为燃煤烟尘、钢铁烟尘和汽车尾气。

Lead is a nonvolatile element , mainly exists in particulate matter in air . It was found that major sources of Pb in PM of Shanghai were coal combustion , vehicle exhaust emissions and metallurgic dusts .

但冲击热效应对陨石中非气体挥发性元素含量及化学组成没有明显的影响，说明冲击涉及的时间、程度和范围非常有限。

However , shock heating led to no change in the bulk chemical compositions and the concentrations of non-gas volatile elements in the chondrites , suggesting that the impact processes of the parent bodies ( time , level and range ) are very limited .

这可能是因为月球形成过程中，撞击产生的热能使挥发性氢元素水的重要组成成分大量流失。

That could be because the collision that made the moon in the first place was so hot that volatile elements like hydrogen , a key component of H2O , largely burned away .

Pb是挥发性最强的元素，与热力学计算结果一致.此法可用来定量大部分沸点在200℃以下，不溶于水的挥发性有机物。

Thermodynamic calculation shows that Pb was the most volatile element among the four inorganic harmful elements . This method is used to quantify most volatile organic compounds having boiling points below 200 ℃ and compounds are insoluble in water .

研究了贵州省四大煤田不同层位、不同煤种中Hg，As，Se，Pb，Cd，Tl，Zn，Sb等挥发性和半挥发性微量元素的分布规律。

The distribution laws was studied of some volatile harmful trace elements as Hg , As , Se , Pb , Cd , Tl , Zn , Sb in the coal of the different coal types and coal layers from four large coal basins in Guizhou province .