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公开(公告)号：US06999174B2
公开(公告)日：2006-02-14
申请号：US10002602
申请日：2001-11-13
CPC分类号： B01L3/5085 , B01L2300/0627 , B01L2300/0829 , G01N21/1702 , G01N21/253
摘要： Methods and apparatus for simultaneous or sequential, rapid analysis of multiple samples by photoacoustic spectroscopy are disclosed. Particularly, a photoacoustic spectroscopy sample array vessel including a vessel body having multiple sample cells connected thereto is disclosed. At least one acoustic detector is acoustically positioned near the sample cells. Methods for analyzing the multiple samples in the sample array vessels using photoacoustic spectroscopy are provided.
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2.发明授权公开(公告)号：US06873415B2
公开(公告)日：2005-03-29
申请号：US10002624
申请日：2001-11-13
CPC分类号： B01L3/5085 , B01L2300/0627 , B01L2300/0829 , G01N21/1702 , G01N21/253
摘要： Methods and apparatus for analysis of multiple samples by photoacoustic spectroscopy are disclosed. Particularly, a photoacoustic spectroscopy sample array vessel including a vessel body having multiple sample cells connected thereto is disclosed. At least one acoustic detector is acoustically coupled with the vessel body. Methods for analyzing the multiple samples in the sample array vessels using photoacoustic spectroscopy are provided.
摘要翻译： 公开了通过光声光谱分析多个样品的方法和装置。 特别地，公开了一种光声光谱样品阵列容器，其包括具有与其连接的多个样品池的容器主体。 至少一个声学检测器与血管体声学耦合。 提供了使用光声光谱分析样品阵列容器中的多个样品的方法。
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公开(公告)号：US06244101B1
公开(公告)日：2001-06-12
申请号：US09322910
申请日：1999-06-01
IPC分类号： G01N2117
CPC分类号： G01N21/1702
摘要： The present invention is a transducer for photoacoustic detection having at least two piezoelectric elements wherein at least a first piezoelectric element has a first frequency and at least a second piezoelectric element has a second frequency. The improvement according to the present invention is that at least two piezoelectric elements are longitudinal elements for longitudinal waves; and the first frequency is different from said second frequency. In other words, the invention is a multi-frequency longitudinal transducer for photoacoustic detection.
摘要翻译： 本发明是一种用于光声检测的换能器，具有至少两个压电元件，其中至少第一压电元件具有第一频率，并且至少第二压电元件具有第二频率。 根据本发明的改进是至少两个压电元件是用于纵波的纵向元件; 并且第一频率与所述第二频率不同。 换句话说，本发明是用于光声检测的多频纵向换能器。
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公开(公告)号：US06348968B2
公开(公告)日：2002-02-19
申请号：US09823560
申请日：2001-03-30
IPC分类号： G01N110
CPC分类号： G01N21/1702
摘要： The invention encompasses photoacoustic apparatuses and photoacoustic spectrometry methods. The invention also encompasses sample cells for photoacoustic spectrometry, and sample cell/transducer constructions. In one aspect, the invention encompasses a photoacoustic spectroscopy apparatus, comprising: a) a sample reservoir and an acoustically-stimulable transducer acoustically coupled with the sample reservoir, the transducer comprising a detector surface having a substantially planar portion; and b) a beam of light configured to be directed through the sample at an angle oblique relative to the substantially planar portion of the detector surface to generate sound waves in the sample. In another aspect, the invention encompasses a photoacoustic spectroscopy sample cell, comprising: a) a first block of material having opposing front and back surfaces, the front surface comprising a substantially planar portion configured to be against a sample and the back surface comprising a substantially planar portion configured to be joined to a transducer, the back surface being parallel to the front surface; and b) a pair of opposing side surfaces joined to opposite ends of the front and back surfaces, one of the opposing side surfaces being configured for passage of light therethrough and extending at a first oblique angle relative to a plane containing the substantially planar portion of the front surface.
摘要翻译： 本发明包括光声装置和光声光谱法。 本发明还包括用于光声光谱法的样品池和样品池/换能器构造。 一方面，本发明包括一种光声波光谱仪，包括：a）样品储存器和与样品储存器声学耦合的声学刺激的换能器，所述换能器包括具有基本上平面的部分的检测器表面; 以及b）配置成以相对于检测器表面的基本上平面的部分倾斜的角度引导通过样品的光束，以在样品中产生声波。 在另一方面，本发明包括光声光谱样品池，包括：a）具有相对的前表面和后表面的第一材料块，所述前表面包括构造成抵靠样品的基本平坦的部分，所述后表面包括基本上 平面部分，被配置为连接到换能器，所述后表面平行于所述前表面; 以及b）一对相对的侧表面，其连接到前表面和后表面的相对端部，相对的一个侧表面中的一个被构造成使光通过并相对于包含基本平坦部分的平面以第一倾斜角度延伸 前面。
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5.发明授权公开(公告)号：US06236455B1
公开(公告)日：2001-05-22
申请号：US09105781
申请日：1998-06-26
IPC分类号： G01N110
CPC分类号： G01N21/1702
摘要： The invention encompasses photoacoustic apparatuses and photoacoustic spectrometry methods. The invention also encompasses sample cells for photoacoustic spectrometry, and sample cell/transducer constructions. In one aspect, the invention encompasses a photoacoustic spectroscopy apparatus, comprising: a) a sample reservoir and an acoustically-stimulable transducer acoustically coupled with the sample reservoir, the transducer comprising a detector surface having a substantially planar portion; and b) a beam of light configured to be directed through the sample at an angle oblique relative to the substantially planar portion of the detector surface to generate sound waves in the sample. In another aspect, the invention encompasses a photoacoustic spectroscopy sample cell, comprising: a) a first block of material having opposing front and back surfaces, the front surface comprising a substantially planar portion configured to be against a sample and the back surface comprising a substantially planar portion configured to be joined to a transducer, the back surface being parallel to the front surface; and b) a pair of opposing side surfaces joined to opposite ends of the front and back surfaces, one of the opposing side surfaces being configured for passage of light therethrough and extending at a first oblique angle relative to a plane containing the substantially planar portion of the front surface.
摘要翻译： 本发明包括光声装置和光声光谱法。 本发明还包括用于光声光谱法的样品池和样品池/换能器构造。 一方面，本发明包括一种光声波光谱仪，包括：a）样品储存器和与样品储存器声学耦合的声学刺激的换能器，所述换能器包括具有基本上平面的部分的检测器表面; 以及b）配置成以相对于检测器表面的基本上平面的部分倾斜的角度引导通过样品的光束，以在样品中产生声波。 在另一方面，本发明包括光声光谱样品池，包括：a）具有相对的前表面和后表面的第一材料块，所述前表面包括构造成抵靠样品的基本平坦的部分，所述后表面包括基本上 平面部分，被配置为连接到换能器，所述后表面平行于所述前表面; 以及b）一对相对的侧表面，其连接到前表面和后表面的相对端部，相对的一个侧表面中的一个被构造成使光通过并相对于包含基本平坦部分的平面以第一倾斜角度延伸 前面。
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公开(公告)号：US5783088A
公开(公告)日：1998-07-21
申请号：US554144
申请日：1995-11-06
申请人： James E. Amonette , Jonathan S. Fruchter , Yuri A. Gorby , Charles R. Cole , Kirk J. Cantrell , Daniel I. Kaplan
发明人： James E. Amonette , Jonathan S. Fruchter , Yuri A. Gorby , Charles R. Cole , Kirk J. Cantrell , Daniel I. Kaplan
摘要： The present invention is a method for removing oxidized contaminant(s) from water. More specifically, the invention has the steps of contacting water containing the oxidized contaminant(s) with a layered aluminosilicate having Fe(II). The aluminosilicate may contain naturally occurring Fe(II), or the Fe(II) may be produced by reducing Fe(III) that is initially present. Reduction may be either by exposure to a chemical or biological reductant. Contacting the water containing oxidized contaminant(s) may be by (1) injection of Fe(II)-containing layered aluminosilicate, via a well, into a saturated zone where it is likely to intercept the contaminated water; (2) injection of contaminated water into a vessel containing the Fe(II)-bearing layered aluminosilicate; and (3) first reducing Fe(III) in the layered aluminosilicate to Fe(II) by injection of a biological or chemical reductant, into an aquifer or vessel having sufficient Fe(III)-bearing aluminosilicate to produce the necessary Fe(II).
摘要翻译： 本发明是从水中除去氧化污染物的方法。 更具体地，本发明具有使含有氧化污染物的水与具有Fe（II）的层状硅铝酸盐接触的步骤。 硅铝酸盐可以含有天然存在的Fe（II），或者Fe（II）可以通过还原初始存在的Fe（III）来制备。 减少可能是通过暴露于化学或生物还原剂。 与含有氧化污染物的水接触可能是（1）通过井将含Fe（II）的层状硅铝酸盐注入到可能拦截污染水的饱和区域; （2）将污染水注入含有Fe（II）的层状硅铝酸盐的容器中; 和（3）通过注入生物或化学还原剂将层状铝硅酸盐中的Fe（III）首先还原成具有足够Fe（III）的硅铝酸盐的含水层或容器以产生必需的Fe（II） 。
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