翻译.......................................................................................
AbstractAprocedureforthedeterminationoftracesofmercurybyliquid-phasemicroextractionba...
Abstract A procedure for the determination of traces of mercury by liquid-phase microextraction based on solidification of a floating organic droplet for separation and
electrothermal atomic absorption spectrometry for final measurement has been developed.For this purpose,50μL of pre-heated(50°C)undecanoic acid(UA),are added to 25 mL of aqueous sample solution at pH 5.The mixture,maintained at 50°C,is stirred for 10 min using a high stirring rate in order to fragment the UA drop into droplets,thus favoring the extraction process.Next,the vial is immersed in an ice bath,which results in the solidification of the UA drop that is easily separated.Injection into the atomizer is carried out after gentle heating.The pyrolytic atomizers are coated with electrolytically reduced palladium that acts as an effective chemical modifier for more than 500 firings.Under the optimized conditions,the detection limit was 70 ng L-1 mercury with an enrichment factor of 430.The relative standard deviation of the measurements was in the 2.1–3.5%range.Recovery studies applied to the determination of mercuric ions in bottled and tap water samples were in the 92–104%range. 展开
electrothermal atomic absorption spectrometry for final measurement has been developed.For this purpose,50μL of pre-heated(50°C)undecanoic acid(UA),are added to 25 mL of aqueous sample solution at pH 5.The mixture,maintained at 50°C,is stirred for 10 min using a high stirring rate in order to fragment the UA drop into droplets,thus favoring the extraction process.Next,the vial is immersed in an ice bath,which results in the solidification of the UA drop that is easily separated.Injection into the atomizer is carried out after gentle heating.The pyrolytic atomizers are coated with electrolytically reduced palladium that acts as an effective chemical modifier for more than 500 firings.Under the optimized conditions,the detection limit was 70 ng L-1 mercury with an enrichment factor of 430.The relative standard deviation of the measurements was in the 2.1–3.5%range.Recovery studies applied to the determination of mercuric ions in bottled and tap water samples were in the 92–104%range. 展开
2个回答
展开全部
Abstract A procedure for the determination of traces of mercury by liquid-phase microextraction based on solidification of a floating organic droplet for separation and
摘要提出了一种基于程序的测定液相微萃取水银的痕迹的基于凝固的浮动有机液滴分离、
electrothermal atomic absorption spectrometry for final measurement has been developed.
电热原子吸收光谱分析为最终测量已被发展出来。
For this purpose,50μL of pre-heated(50°C)undecanoic acid(UA),are added to 25 mL of aqueous sample solution at pH 5.
为了这个目的,50μL(50°C预热的工件上的)undecanoic酸(1987),被添加到25毫升的水样品溶液在pH值5。
The mixture,maintained at 50°C,is stirred for 10 min using a high stirring rate in order to fragment the UA drop into droplets,thus favoring the extraction process.
这种混合物,维持在50°C,是为10分钟搅动使用高的搅拌速率为了碎片跌落的液滴的特赦,从而有利于提取工艺。
Next,the vial is immersed in an ice bath,which results in the solidification of the UA drop that is easily separated.
其次,玉瓶都沉浸在一个冰浴,结果在凝固的统一炮火作战指挥中心的下降,易于分离。
Injection into the atomizer is carried out after gentle heating.
注射雾化器温和加热后实施。
The pyrolytic atomizers are coated with electrolytically reduced palladium that acts as an effective chemical modifier for more than 500 firings.
随着原子化器包着的热解行为electrolytically减少钯,作为一种有效的化学抗性超过500名的解雇。
Under the optimized conditions,the detection limit was 70 ng L-1 mercury with an enrichment factor of 430.
在优化条件下,检测极限是L-1 70 ng一种浓缩因子的水星与430。
The relative standard deviation of the measurements was in the 2.1–3.5%range.Recovery studies applied to the determination of mercuric ions in bottled and tap water samples were in the 92–104%range.
其相对标准偏差的测量是研究在2.1-3.5%range.Recovery用来测定汞离子的瓶装和自来水的92-104%range样品。
摘要提出了一种基于程序的测定液相微萃取水银的痕迹的基于凝固的浮动有机液滴分离、
electrothermal atomic absorption spectrometry for final measurement has been developed.
电热原子吸收光谱分析为最终测量已被发展出来。
For this purpose,50μL of pre-heated(50°C)undecanoic acid(UA),are added to 25 mL of aqueous sample solution at pH 5.
为了这个目的,50μL(50°C预热的工件上的)undecanoic酸(1987),被添加到25毫升的水样品溶液在pH值5。
The mixture,maintained at 50°C,is stirred for 10 min using a high stirring rate in order to fragment the UA drop into droplets,thus favoring the extraction process.
这种混合物,维持在50°C,是为10分钟搅动使用高的搅拌速率为了碎片跌落的液滴的特赦,从而有利于提取工艺。
Next,the vial is immersed in an ice bath,which results in the solidification of the UA drop that is easily separated.
其次,玉瓶都沉浸在一个冰浴,结果在凝固的统一炮火作战指挥中心的下降,易于分离。
Injection into the atomizer is carried out after gentle heating.
注射雾化器温和加热后实施。
The pyrolytic atomizers are coated with electrolytically reduced palladium that acts as an effective chemical modifier for more than 500 firings.
随着原子化器包着的热解行为electrolytically减少钯,作为一种有效的化学抗性超过500名的解雇。
Under the optimized conditions,the detection limit was 70 ng L-1 mercury with an enrichment factor of 430.
在优化条件下,检测极限是L-1 70 ng一种浓缩因子的水星与430。
The relative standard deviation of the measurements was in the 2.1–3.5%range.Recovery studies applied to the determination of mercuric ions in bottled and tap water samples were in the 92–104%range.
其相对标准偏差的测量是研究在2.1-3.5%range.Recovery用来测定汞离子的瓶装和自来水的92-104%range样品。
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
