公开(公告)号：US06802227B2

公开(公告)日：2004-10-12

申请号：US10025510

申请日：2001-12-19

申请人： Eric R. Lindgren ,  James M. Phelan

发明人： Eric R. Lindgren ,  James M. Phelan

IPC分类号： G01N100

CPC分类号： G01N1/22 ,  F41H11/12 ,  G01N1/405

摘要： An apparatus for capturing, from gases such as soil gas, target analytes. Target analytes may include emanations from explosive materials or from residues of explosive materials. The apparatus employs principles of sorption common to solid phase microextraction, and is best used in conjunction with analysis means such as a gas chromatograph. To sorb target analytes, the apparatus functions using various sorptive structures to capture target analyte. Depending upon the embodiment, those structures may include a capillary tube including an interior surface on which sorptive material (similar to that on the surface of a SPME fiber) is supported (along with means for moving gases through the capillary tube so that the gases come into close proximity to the sorptive material). In one disclosed embodiment, at least one such sorptive structure is associated with an enclosure including an opening in communication with the surface of a soil region potentially contaminated with buried explosive material such as unexploded ordnance. Emanations from explosive materials can pass into and accumulate in the enclosure where they are sorbed by the sorptive structures. Also disclosed is the use of heating means such as microwave horns to drive target analytes into the soil gas from solid and liquid phase components of the soil.

摘要翻译： 用于从诸如土壤气体的气体，目标分析物中捕获的装置。 目标分析物可能包括爆炸物质或爆炸性物质残留物的发射。 该装置采用常用于固相微萃取的吸附原理，最好与分析装置如气相色谱仪一起使用。 为了吸收目标分析物，该装置使用各种吸附结构来捕获目标分析物。 根据实施例，这些结构可以包括毛细管，其包括内表面，在该内表面上支撑着吸附材料（类似于SPME纤维表面上的吸附材料）（以及用于通过毛细管移动气体以使气体进入 靠近吸附材料）。 在一个公开的实施例中，至少一个这样的吸附结构与外壳相关联，该外壳包括与可能被诸如未爆弹药的埋入的爆炸物质污染的土壤区域的表面连通的开口。 爆炸性材料的发散可能会进入并积聚在外壳中，吸收结构被吸收。 还公开了使用诸如微波喇叭的加热装置来将目标分析物从土壤的固相和液相组分驱动到土壤气体中。

公开(公告)号：US06477907B1

公开(公告)日：2002-11-12

申请号：US09603729

申请日：2000-06-23

申请人： William B. Chambers ,  Philip J. Rodacy ,  James M. Phelan ,  Ronald L. Woodfin

发明人： William B. Chambers ,  Philip J. Rodacy ,  James M. Phelan ,  Ronald L. Woodfin

IPC分类号： G01N3300

CPC分类号： G01N1/2294 ,  G01N1/2214 ,  G01N33/24 ,  G01N2001/022

摘要： An apparatus and method for detecting explosive-indicating compounds in subsurface soil. The apparatus has a probe with an adsorbent material on some portion of its surface that can be placed into soil beneath the ground surface, where the adsorbent material can adsorb at least one explosive-indicating compound. The apparatus additional has the capability to desorb the explosive-indicating compound through heating or solvent extraction. A diagnostic instrument attached to the probe detects the desorbed explosive-indicating compound. In the method for detecting explosive-indicating compounds in soil, the sampling probe with an adsorbent material on at least some portion of a surface of the sampling probe is inserted into the soil to contact the adsorbent material with the soil. The explosive-indicating compounds are then desorbed and transferred as either a liquid or gas sample to a diagnostic tool for analysis. The resulting gas or liquid sample is analyzed using at least one diagnostic tool selected from the group consisting of an ion-mobility spectrometer, a gas chromatograph, a high performance liquid chromatograph, a capillary electrophoresis chromatograph, a mass spectrometer, a Fourier-transform infrared spectrometer and a Raman spectrometer to detect the presence of explosive-indicating compounds.

摘要翻译： 一种用于检测地下土壤中爆炸性指示化合物的装置和方法。 该装置具有在其表面的某些部分上具有吸附材料的探针，其可以放置在地表下方的土壤中，其中吸附剂材料可以吸附至少一种爆炸性指示化合物。 附加设备具有通过加热或溶剂萃取解吸爆炸性指示化合物的能力。 附着在探头上的诊断仪器可检测解吸的爆炸性化合物。 在土壤中检测炸药指示化合物的方法中，将具有取样探针表面的至少一部分上的吸附剂材料的取样探针插入土壤中以与土壤接触吸附材料。 然后将爆炸性指示化合物解吸并作为液体或气体样品转移到用于分析的诊断工具。 使用至少一种选自离子迁移谱仪，气相色谱仪，高效液相色谱仪，毛细管电泳色谱仪，质谱仪，傅里叶变换红外光谱仪等的诊断工具分析所得气体或液体样品 光谱仪和拉曼光谱仪，以检测爆炸性指示化合物的存在。

公开(公告)号：US06405608B1

公开(公告)日：2002-06-18

申请号：US09491115

申请日：2000-01-25

申请人： Eric R. Lindgren ,  James M. Phelan

发明人： Eric R. Lindgren ,  James M. Phelan

IPC分类号： G01N100

CPC分类号： G01N1/22 ,  F41H11/12 ,  G01N1/405

摘要： An apparatus for capturing, from gases such as soil gas, target analytes. Target analytes may include emanations from explosive materials or from residues of explosive materials. The apparatus employs principles of sorption common to solid phase microextraction, and is best used in conjunction with analysis means such as a gas chromatograph. To sorb target analytes, the apparatus functions using various sorptive structures to capture target analyte. Depending upon the embodiment, those structures may include 1) a conventional solid-phase microextraction (SPME) fiber, 2) a SPME fiber suspended in a capillary tube (with means provided for moving gases through the capillary tube so that the gases come into close proximity to the suspended fiber), and 3) a capillary tube including an interior surface on which sorptive material (similar to that on the surface of a SPME fiber) is supported (along with means for moving gases through the capillary tube so that the gases come into close proximity to the sorptive material). In one disclosed embodiment, at least one such sorptive structure is associated with an enclosure including an opening in communication with the surface of a soil region potentially contaminated with buried explosive material such as unexploded ordnance. Emanations from explosive materials can pass into and accumulate in the enclosure where they are sorbed by the sorptive structures. Also disclosed is the use of heating means such as microwave horns to drive target analytes into the soil gas from solid and liquid phase components of the soil.

摘要翻译： 用于从诸如土壤气体的气体，目标分析物中捕获的装置。 目标分析物可能包括爆炸物质或爆炸性物质残留物的发射。 该装置采用常用于固相微萃取的吸附原理，最好与分析装置如气相色谱仪一起使用。 为了吸收目标分析物，该装置使用各种吸附结构来捕获目标分析物。 根据实施方案，这些结构可以包括1）常规的固相微萃取（SPME）纤维，2）悬浮在毛细管中的SPME纤维（具有用于通过毛细管移动气体以使气体接近的装置 靠近悬挂纤维），以及3）毛细管，其包括内表面，在其上支撑着吸附材料（类似于SPME纤维表面上的吸附材料）（以及用于通过毛细管移动气体的装置，使得气体 接近吸附材料）。 在一个公开的实施例中，至少一个这样的吸附结构与外壳相关联，该外壳包括与可能被诸如未爆弹药的埋入的爆炸物质污染的土壤区域的表面连通的开口。 爆炸性材料的发散可能会进入并积聚在外壳中，吸收结构被吸收。 还公开了使用诸如微波喇叭的加热装置来将目标分析物从土壤的固相和液相组分驱动到土壤气体中。