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The large amount of tin and antimony in the sample can be volatilized after dissolved in the saturated solution with hydrochloric acid and bromine .

试样中大量锡、锑以盐酸溴饱和溶液溶解挥发除去,在凝聚剂硝酸锶存在下,铅离子与k2Cr2O7标准溶液在PH3~4以PbCrO4快速形成沉淀析出[1]。

In order to understand the lead and mercury content in Baby, sedative Chinese herb drugs, 179 preparations and 52 herbs of Chinese drugs were analyzed. Samples were prepared by Ash determination in lead and sulfuric acid-nitirc acid digestion in mercury, then determined by AAS.

将市售小儿惊风散类制剂179件及其药材52种,分别以灰化法及硫酸硝酸法处理后,利用原子吸光光度法(Atomic Absorption Spectrometry;AAS)测定铅及汞之含量。

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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。

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。

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