公开(公告)号：US20080014653A1

公开(公告)日：2008-01-17

申请号：US11827731

申请日：2007-07-13

申请人： Scott Harris Bloom ,  Eric Oscar Hemberg ,  Robert Bible

发明人： Scott Harris Bloom ,  Eric Oscar Hemberg ,  Robert Bible

IPC分类号： G01J3/443 ,  G01J3/00

CPC分类号： G01J3/443 ,  G01J2001/0276 ,  G01N21/714 ,  G01N21/73 ,  G01N21/94

摘要： A system and method for analysis of minute quantities of contaminants in water. Liquid water is converted to water vapor and then excited into a plasma state with microwave radiation. Optical emissions from the plasma are spectrally analyzed to provide qualitative and/or quantitative analyses of the contaminants in the water. Preferred embodiments provide special techniques for generating the water vapor from a water stream; exciting the water vapor to a plasma state; varying and controlling the plasma energy; introducing samples into an existing plasma; collecting emissions from the plasma from a variety of angles; selecting the optical collection angles; protecting the analysis optics from the plasma; exhausting the spent plasma gases back into the water stream; and analyzing the results to yield concentrations of elements and molecules in the sample.

摘要翻译： 用于分析水中微量污染物的系统和方法。 液态水转化为水蒸汽，然后用微波辐射激发成等离子体状态。 对等离子体的光发射进行光谱分析，以提供水中污染物的定性和/或定量分析。 优选实施例提供了用于从水流产生水蒸汽的特殊技术; 激发水蒸汽到等离子体状态; 改变和控制等离子体能量; 将样品引入现有的等离子体; 从各种角度收集等离子体的排放; 选择光学收集角度; 保护分析光学元件免受等离子体的影响; 将废等离子体气体排放回水流中; 并分析结果以产生样品中元素和分子的浓度。