公开(公告)号：US5098451A

公开(公告)日：1992-03-24

申请号：US81913

申请日：1987-07-08

申请人： David P. Rounbehler ,  David P. Lieb ,  Eugene K. Achter ,  Gabor Miskolczy ,  Eugenie Hainsworth ,  Gregory J. Wendel

发明人： David P. Rounbehler ,  David P. Lieb ,  Eugene K. Achter ,  Gabor Miskolczy ,  Eugenie Hainsworth ,  Gregory J. Wendel

IPC分类号： G01N1/00 ,  G01N1/02 ,  G01N1/22 ,  G01N1/28 ,  G01N1/40 ,  G01N21/76 ,  G01N27/417 ,  G01N30/02 ,  G01N30/06 ,  G01N30/08 ,  G01N30/12 ,  G01N30/14 ,  G01N30/16 ,  G01N30/30 ,  G01N30/40 ,  G01N30/46 ,  G01N30/62 ,  G01N30/64 ,  G01N30/72 ,  G01N30/84 ,  G01N31/12 ,  G01N33/00 ,  G01N33/22 ,  G01V9/00

CPC分类号： G01N30/461 ,  G01N1/02 ,  G01N30/08 ,  G01N30/12 ,  G01N30/84 ,  G01N33/0057 ,  G01V9/007 ,  G01N1/2214 ,  G01N1/2226 ,  G01N1/28 ,  G01N1/40 ,  G01N2001/022 ,  G01N2001/028 ,  G01N2030/025 ,  G01N2030/065 ,  G01N2030/085 ,  G01N2030/121 ,  G01N2030/122 ,  G01N2030/123 ,  G01N2030/125 ,  G01N2030/126 ,  G01N2030/143 ,  G01N2030/167 ,  G01N2030/3007 ,  G01N2030/3046 ,  G01N2030/3053 ,  G01N2030/3061 ,  G01N2030/3069 ,  G01N2030/3076 ,  G01N2030/3084 ,  G01N2030/626 ,  G01N2030/642 ,  G01N2030/8405 ,  G01N21/76 ,  G01N30/14 ,  G01N30/40 ,  G01N30/62 ,  G01N30/72

摘要： A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample gun, are collected on surfaces coated with gas chromatograph (GC) material which trap explosives vapors but repel nitric oxide, then are desorbed and concentrated in one or more cold spot concentrators. A high speed gas chromatograph (GC) separates the vapors, after which specific vapors are decomposed in two pyrolyzers arranged in parallel and the resulting nitric oxide is detected. A low temperature pyrolyzer with silver produces NO from nitramines or nitrite esters; a high temperature pyrolyzer decomposes all explosives vapors to permit detection of the remaining explosives. Also disclosed is a series arrangement of pyrolyzers and gas chromatographs and an NO detector to time-shift detection of certain vapors and facilitate very fast GC analyses. The use of hydrogen as a carrier gas, plus unique collectors and concentrators, high speed heaters, NO detectors, and very fast, temperature-programmable GC's enhance selectivity, sensitivity and speed of detection.

摘要翻译： 公开了一种高选择性，灵敏，快速的检测系统和方法，用于检测空气中特定化合物的蒸气。 从化合物如爆炸物或从手持式样品枪吸取热量从表面剥离的蒸气被收集在涂有气相色谱（GC）材料的表面上，该气相色谱（GC）材料捕获爆炸物蒸气但排斥一氧化氮，然后被解吸和浓缩 在一个或多个冷点浓缩器中。 高速气相色谱仪（GC）分离蒸汽，之后特定的蒸汽在平行排列的两个热解器中分解，并检测到所产生的一氧化氮。 含有银的低温热解器由硝胺或亚硝酸酯产生NO; 高温热解器分解所有炸药蒸气，以便检测剩余的炸药。 还公开了热解器和气相色谱仪的串联布置和用于某些蒸气的时移检测的NO检测器，并且促进非常快速的GC分析。 使用氢气作为载气，加上独特的收集器和浓缩器，高速加热器，NO检测器和非常快速的温度可编程GC增强了选择性，灵敏度和检测速度。

公开(公告)号：US5551278A

公开(公告)日：1996-09-03

申请号：US81953

申请日：1987-07-08

申请人： David P. Rounbehler ,  Eugene K. Achter ,  David P. Lieb ,  David H. Fine ,  Eugenie Hainsworth ,  Alf L. Carroll ,  Gregory J. Wendell

发明人： David P. Rounbehler ,  Eugene K. Achter ,  David P. Lieb ,  David H. Fine ,  Eugenie Hainsworth ,  Alf L. Carroll ,  Gregory J. Wendell

IPC分类号： G01N1/00 ,  G01N1/02 ,  G01N1/22 ,  G01N1/28 ,  G01N1/40 ,  G01N21/76 ,  G01N27/417 ,  G01N30/02 ,  G01N30/06 ,  G01N30/08 ,  G01N30/12 ,  G01N30/14 ,  G01N30/16 ,  G01N30/30 ,  G01N30/40 ,  G01N30/46 ,  G01N30/62 ,  G01N30/64 ,  G01N30/72 ,  G01N30/84 ,  G01N31/12 ,  G01N33/00 ,  G01N33/22 ,  G01V9/00 ,  G01K19/00 ,  B01D15/08

CPC分类号： G01N30/461 ,  G01N1/02 ,  G01N30/08 ,  G01N30/12 ,  G01N30/84 ,  G01N33/0057 ,  G01V9/007 ,  G01N1/2214 ,  G01N1/2226 ,  G01N1/28 ,  G01N1/40 ,  G01N2001/022 ,  G01N2001/028 ,  G01N2030/025 ,  G01N2030/065 ,  G01N2030/085 ,  G01N2030/121 ,  G01N2030/122 ,  G01N2030/123 ,  G01N2030/125 ,  G01N2030/126 ,  G01N2030/143 ,  G01N2030/167 ,  G01N2030/3007 ,  G01N2030/3046 ,  G01N2030/3053 ,  G01N2030/3061 ,  G01N2030/3069 ,  G01N2030/3076 ,  G01N2030/3084 ,  G01N2030/626 ,  G01N2030/642 ,  G01N2030/8405 ,  G01N21/76 ,  G01N30/14 ,  G01N30/40 ,  G01N30/62 ,  G01N30/72

摘要： A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample gun, are collected on surfaces coated with gas chromatograph (GC) material which trap explosives vapors but repel nitric oxide, then are desorbed and concentrated in one or more cold spot concentrators, A high speed gas chromatograph (GC) separates the vapors, after which specific vapors are decomposed in two pyrolyzers arranged in parallel and the resulting nitric oxide is detected, A low temperature pyrolyzer with silver produces NO from nitramines or nitrite esters; a high temperature pyrolyzer decomposes all explosives vapors to permit detection of the remaining explosives, Also disclosed is a series arrangement of pyrolyzers and gas chromatographs and an NO detector to time-shift detection of certain vapors and facilitate very fast GC analyses, The use of hydrogen as a carrier gas, plus unique collectors and concentrators, high speed heaters, NO detectors, and very fast, temperature-programmable GC's enhance selectivity, sensitivity and speed of detection,

摘要翻译： 公开了一种高选择性，灵敏，快速的检测系统和方法，用于检测空气中特定化合物的蒸气。 从化合物如爆炸物或从手持式样品枪吸取热量从表面剥离的蒸气被收集在涂有气相色谱（GC）材料的表面上，该气相色谱（GC）材料捕获爆炸物蒸气但排斥一氧化氮，然后被解吸和浓缩 在一个或多个冷点浓缩器中，高速气相色谱仪（GC）分离蒸气，之后特定的蒸气在平行排列的两个热解器中分解，并检测到所产生的一氧化氮。具有银的低温热解器由硝酸盐产生NO 或亚硝酸酯; 高温热解器分解所有爆炸物蒸气以允许检测剩余的炸药。还公开了热解器和气相色谱仪的串联布置以及NO检测器对某些蒸气进行时移检测，并促进非常快速的GC分析。使用氢 作为载气，加上独特的收集器和浓缩器，高速加热器，NO检测器和非常快速的温度可编程GC增强了选择性，灵敏度和检测速度，

公开(公告)号：US5123274A

公开(公告)日：1992-06-23

申请号：US81915

申请日：1987-07-08

申请人： Alf L. Carroll ,  Gabor Miskolczy ,  Freeman W. Fraim ,  Eugene K. Achter ,  David P. Lieb

发明人： Alf L. Carroll ,  Gabor Miskolczy ,  Freeman W. Fraim ,  Eugene K. Achter ,  David P. Lieb

IPC分类号： G01N1/00 ,  G01N1/02 ,  G01N1/22 ,  G01N1/28 ,  G01N1/40 ,  G01N21/76 ,  G01N27/417 ,  G01N30/02 ,  G01N30/06 ,  G01N30/08 ,  G01N30/12 ,  G01N30/14 ,  G01N30/16 ,  G01N30/30 ,  G01N30/40 ,  G01N30/46 ,  G01N30/62 ,  G01N30/64 ,  G01N30/72 ,  G01N30/84 ,  G01N31/12 ,  G01N33/00 ,  G01N33/22 ,  G01V9/00

CPC分类号： G01N30/461 ,  G01N1/02 ,  G01N30/08 ,  G01N30/12 ,  G01N30/84 ,  G01N33/0057 ,  G01V9/007 ,  G01N1/2214 ,  G01N1/2226 ,  G01N1/28 ,  G01N1/40 ,  G01N2001/022 ,  G01N2001/028 ,  G01N2030/025 ,  G01N2030/065 ,  G01N2030/085 ,  G01N2030/121 ,  G01N2030/122 ,  G01N2030/123 ,  G01N2030/125 ,  G01N2030/126 ,  G01N2030/143 ,  G01N2030/167 ,  G01N2030/3007 ,  G01N2030/3046 ,  G01N2030/3053 ,  G01N2030/3061 ,  G01N2030/3069 ,  G01N2030/3076 ,  G01N2030/3084 ,  G01N2030/626 ,  G01N2030/642 ,  G01N2030/8405 ,  G01N21/76 ,  G01N30/14 ,  G01N30/40 ,  G01N30/62 ,  G01N30/72

摘要： A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample gun, are collected on surface coated with gas chromatograph (GC) material which trap explosives vapors but repel nitric oxide, then are desorbed and concentrated in one or more cold spot concentrators. A high speed gas chromatograph (GC) separates the vapors, after which specific vapors are decomposed in two pyrolyzers arranged in parallel and the resulting nitric oxide is detected. A low temperature pyrolyzer with silver produces NO from nitramines or nitrite esters; a high temperature pyrolyzer decomposes all explosives vapors to permit detection of the remaining explosives. Also disclosed is a series arrangement of pyroloyzers and gas chromatographs and an NO detector to time-shift detection of certain vapors and facilitate very fast GC analyses. The use of hydrogen as a carrier gas, plus unique collectors and concentrators, high speed heaters, NO detectors, and very fast, temperature-programmable GC's enhance selectivity, sensitivity and speed of detection.

摘要翻译： 公开了一种高选择性，灵敏，快速的检测系统和方法，用于检测空气中特定化合物的蒸气。 从化学品如爆炸物或从手持式样品枪吸取热量从表面剥离的蒸气在被气相色谱（GC）材料涂覆的表面上收集，该气相色谱（GC）材料捕获爆炸物蒸气但排斥一氧化氮，然后被解吸和浓缩 在一个或多个冷点浓缩器中。 高速气相色谱仪（GC）分离蒸汽，之后特定的蒸汽在平行排列的两个热解器中分解，并检测到所产生的一氧化氮。 含有银的低温热解器由硝胺或亚硝酸酯产生NO; 高温热解器分解所有炸药蒸气，以便检测剩余的炸药。 还公开了热解器和气相色谱仪的串联布置，以及用于某些蒸气的时移检测的NO检测器，并促进非常快速的GC分析。 使用氢气作为载气，加上独特的收集器和浓缩器，高速加热器，NO检测器和非常快速的温度可编程GC增强了选择性，灵敏度和检测速度。

公开(公告)号：US5108705A

公开(公告)日：1992-04-28

申请号：US594267

申请日：1990-10-03

申请人： David P. Rounbehler ,  David P. Lieb ,  Eugene K. Achter ,  David B. Gernes ,  Abdul Tafreshi

发明人： David P. Rounbehler ,  David P. Lieb ,  Eugene K. Achter ,  David B. Gernes ,  Abdul Tafreshi

IPC分类号： G01N1/22 ,  G01N21/76 ,  G01N30/46 ,  G01N30/62 ,  G01N30/74 ,  G01N30/84

CPC分类号： G01N30/62 ,  G01N30/84 ,  G01N2030/623 ,  G01N2030/8405 ,  G01N21/76 ,  G01N30/461 ,  G01N30/74

摘要： Disclosed are a method and apparatus for high speed, selective detection of vapors of specific compounds, particularly nitrogen-containing compounds, utilizing, a bypass branch and high speed gas chromatography for improved selectively and sensitivity of detection. A system with two gas chromatographs (GC's) alternating in series with two pyrolyzers provides two time intervals of detection in a downstream detector, with the second time interval containing signals delayed and further separated relative to signals from the first time interval. The bypass branch, in diverting a portion of the flow of gas samples from passage through the second gas chromatograph and second pyrolyzer, avoids interferences in the first time interval of detection from non-GC-retained compounds decomposed in the second pyrolyzer. Also disclosed is an arrangement for rapid, precise heating of vapor concentrator tubes in which vapors are rapidly focussed and then injected into a GC, and for rapid, precise heating of the GC's.

摘要翻译： 公开了一种用于高速，选择性地检测特定化合物，特别是含氮化合物的蒸气的方法和装置，利用旁路分支和高速气相色谱法提高选择性和灵敏度。 具有与两个热解器串联交替的两个气相色谱仪（GC）的系统在下游检测器中提供两个检测时间间隔，其中第二时间间隔包含相对于来自第一时间间隔的信号延迟和进一步分离的信号。 旁路分支在将一部分气体样品从通过第二气相色谱仪和第二热解器的过程中转移时，避免了在第二次热解器中分解的非GC保留化合物的第一时间间隔内的干扰。 还公开了一种用于快速精确加热蒸汽浓缩管的装置，其中蒸气快速聚焦，然后注入GC，并快速，精确地加热GC。

公开(公告)号：US5300758A

公开(公告)日：1994-04-05

申请号：US825368

申请日：1992-01-24

申请人： David P. Rounbehler ,  David P. Lieb ,  Eugene K. Achter ,  David B. Gernes ,  Abdul Tafreshi

发明人： David P. Rounbehler ,  David P. Lieb ,  Eugene K. Achter ,  David B. Gernes ,  Abdul Tafreshi

IPC分类号： G01N1/22 ,  G01N21/76 ,  G01N30/46 ,  G01N30/62 ,  G01N30/74 ,  G01N30/84 ,  H05B1/02

CPC分类号： G01N30/62 ,  G01N30/84 ,  G01N2030/623 ,  G01N2030/8405 ,  G01N21/76 ,  G01N30/461 ,  G01N30/74

摘要： Disclosed are a method and apparatus for high speed, selective detection of vapors of specific compounds, particularly nitrogen-containing compounds, utilizing a bypass branch and high speed gas chromatography for improved selectivity and sensitivity of detection. A system with two gas chromatographs (GC's) alternating in series with two pyrolyzers provides two time intervals of detection in a downstream detector, with the second time interval containing signals delayed and further separated relative to signals from the first time interval. The bypass branch, in diverting a portion of the flow of gas samples from passage through the second gas chromatograph and second pyrolyzer, avoids interferences in the first time interval of detection from non-GC-retained compounds decomposed in the second pyrolyzer. Also disclosed is an arrangement for rapid, precise heating of vapor concentrator tubes in which vapors are rapidly focussed and then injected into a GC, and for rapid, precise heating of the GC's.

摘要翻译： 公开了一种利用旁路分支和高速气相色谱法对特定化合物，特别是含氮化合物的蒸气进行高速，选择性检测的方法和装置，以提高检测的选择性和灵敏度。 具有与两个热解器串联交替的两个气相色谱仪（GC）的系统在下游检测器中提供两个检测时间间隔，其中第二时间间隔包含相对于来自第一时间间隔的信号延迟和进一步分离的信号。 旁路分支在将一部分气体样品从通过第二气相色谱仪和第二热解器的过程中转移时，避免了在第二次热解器中分解的非GC保留化合物的第一时间间隔内的干扰。 还公开了一种用于快速精确加热蒸汽浓缩管的装置，其中蒸气快速聚焦，然后注入GC，并快速，精确地加热GC。

公开(公告)号：US4909089A

公开(公告)日：1990-03-20

申请号：US272845

申请日：1988-11-18

申请人： Eugene K. Achter ,  Edward J. Burke ,  Gabor Miskolczy ,  Ain A. Sonin

发明人： Eugene K. Achter ,  Edward J. Burke ,  Gabor Miskolczy ,  Ain A. Sonin

IPC分类号： G01N1/00 ,  G01N1/02 ,  G01N1/22 ,  G01N1/24 ,  G01V9/00

CPC分类号： G01V9/007 ,  G01N1/24 ,  G01N2001/024

摘要： Disclosed is a walk-in inspection apparatus for active production of air samples containing vapors of explosives, drugs, or other substances carried by a person. The apparatus includes a U-shaped booth with an open end through which a person walks past walls which may contain a metal detector, then stands facing a vertical end wall. In the collection of an air sample a blower outside the booth sucks a large volume of air around the person and horizontally through a vertical array of shaped funnels in the end wall and through ducts connected to a collection manifold for subsequent analysis. Infrared heaters in the end wall heat the clothing and skin of the person during sampling, and many small nozzles extending through the end wall direct low volume, high momentum pulsed jets of puffs of air at the person to dislodge vapors, expel air from beneath clothing, and disrupt stagnant boundary layers of air near the person. Curved shapes of portions of the booth and funnels provide smooth, low loss airflow, and height and distance sensors facilitate automatic operation of the inspection apparatus.

公开(公告)号：US4896547A

公开(公告)日：1990-01-30

申请号：US272951

申请日：1988-11-18

申请人： Michel D. Arney ,  Gianfranco Zaccai ,  Eugene K. Achter ,  Edward J. Burke ,  Gabor Miskolczy ,  Ain A. Sonin

发明人： Michel D. Arney ,  Gianfranco Zaccai ,  Eugene K. Achter ,  Edward J. Burke ,  Gabor Miskolczy ,  Ain A. Sonin

IPC分类号： G01N1/00 ,  G01N1/02 ,  G01N1/22 ,  G01V9/00

CPC分类号： G01N1/2273 ,  G01V9/007 ,  G01N2001/024 ,  G01N2001/2276

摘要： Disclosed is a walk-in inspection apparatus for active production of air samples containing vapors of explosives, drugs, or other substances carried by a person. The apparatus includes a U-shaped booth with an open end through which a person walks past walls which may contain a metal detector, then stands in front of a mesh screen facing a vertical end wall containing a vertical array of shaped funnels. Light-transmissive wall sections near the end wall help encourage entry of the person into the booth, and the light colored mesh screen draws attention of a person in the booth away from the darker funnels. In the collection of an air sample a blower outside the booth sucks a large volume of air around the person and horizontally through the funnels in the end wall and through ducts into a collection manifold for subsequent analysis. During sampling, infrared heaters in the end wall heat the clothing and skin of the person and many small nozzles extending through the end wall direct pulsed jets or puffs of air at the person to dislodge vapors, expel air from beneath clothing, and disrupt stagnant boundary layers of air near the person. Substantially all of the air drawn around the person is collected, and curved shapes of portions of the booth, funnels, and ducts provide smooth, low loss airflow to the collection manifold.

摘要翻译： 公开了一种用于主动生产含有爆炸物，药物或人携带的其他物质的空气样本的步入式检查装置。 该装置包括具有开口端的U形展位，人们通过该展开端穿过可能包含金属检测器的墙壁，然后站立在面向垂直端壁的网格屏幕的前面，该垂直端壁包含垂直排列的成形漏斗。 端壁附近的透光墙部分有助于鼓励人员进入展位，浅色的网状屏幕可以吸引展位的人员远离暗处漏斗的注意力。 在收集空气样本时，展位外的鼓风机吸引人体周围的大量空气，水平地穿过端壁的漏斗，并通过管道进入收集歧管以进行后续分析。 在采样过程中，端壁的红外加热器加热了人的衣服和皮肤，许多小喷嘴延伸穿过端壁直接喷射或吹起空气，以排除蒸气，排出衣服下方的空气，并破坏停滞的边界 靠近人的空气层。 基本上收集人体周围的空气，展位，漏斗和管道部分的弯曲形状向收集歧管提供平滑，低损失的气流。

公开(公告)号：US5472882A

公开(公告)日：1995-12-05

申请号：US320407

申请日：1994-10-03

申请人： David P. Rounbehler ,  Eugene K. Achter ,  David H. Fine ,  Freeman W. Fraim ,  Stephen J. MacDonald ,  Helmut W. Klotzsch

发明人： David P. Rounbehler ,  Eugene K. Achter ,  David H. Fine ,  Freeman W. Fraim ,  Stephen J. MacDonald ,  Helmut W. Klotzsch

IPC分类号： G01N21/76 ,  G01N21/90 ,  G01N33/00 ,  G01N35/00 ,  G01N35/04 ,  G01N35/10 ,  G01N35/02

CPC分类号： G01N21/9018 ,  G01N21/76 ,  G01N21/766 ,  G01N35/00 ,  G01N2033/0081 ,  G01N2035/0484 ,  G01N35/10 ,  Y10T436/113332 ,  Y10T436/17 ,  Y10T436/173845

摘要： Disclosed is an improved method and system for injecting liquid into containers and for inspecting containers for the presence of certain substances such as potential contaminants such as ammonium salts or amine salts in glass or plastic bottles. A high speed system and method are provided for detecting these contaminants in these bottles. Ammonia and amines can be detected by chemiluminescence of samples of volatiles emitted from the bottles during the high speed inspection process. A solution of Na.sub.2 CO.sub.3 is injected into the bottles in order to enhance the conversion of ammonium or amine salts to free ammonia or amines which are then released as vapors. This enhances the likelihood that a gas-phase detection system such as one using chemiluminescence detection techniques will detect the presence of contaminants containing ammonium salts or amine salts.

摘要翻译： 公开了一种改进的方法和系统，用于将液体注入容器中并用于检查容器中是否存在某些物质，例如玻璃或塑料瓶中的诸如铵盐或胺盐的潜在污染物。 提供了一种用于检测这些瓶子中这些污染物的高速系统和方法。 氨和胺可以通过在高速检查过程中从瓶子发出的挥发物样品的化学发光来检测。 将Na 2 CO 3溶液注入瓶中以增强铵盐或胺盐向游离氨或胺的转化，然后将其释放为蒸气。 这增强了诸如使用化学发光检测技术的气相检测系统将检测到含有铵盐或胺盐的污染物的存在的可能性。

公开(公告)号：US5470754A

公开(公告)日：1995-11-28

申请号：US20804

申请日：1993-02-22

申请人： David P. Rounbehler ,  David H. Fine ,  Eugene K. Achter ,  Stephen J. MacDonald ,  Daniel B. Dennison

发明人： David P. Rounbehler ,  David H. Fine ,  Eugene K. Achter ,  Stephen J. MacDonald ,  Daniel B. Dennison

IPC分类号： B07C5/34 ,  B08B9/46 ,  B29B17/00 ,  B29B17/02 ,  G01N1/00 ,  G01N1/22 ,  G01N1/24 ,  G01N21/64 ,  G01N21/76 ,  G01N21/90 ,  G01N33/00 ,  G01N33/44

CPC分类号： B07C5/34 ,  B07C5/3408 ,  B08B9/46 ,  B29B17/00 ,  B29B17/02 ,  G01N1/2226 ,  G01N21/64 ,  G01N21/766 ,  G01N21/9018 ,  B08B2203/005 ,  B29B2017/0275 ,  G01N1/2202 ,  G01N1/24 ,  G01N2001/2223 ,  G01N2001/2229 ,  G01N2033/0081 ,  G01N21/76 ,  Y02W30/62 ,  Y02W30/622 ,  Y10T436/113332 ,  Y10T436/17 ,  Y10T436/206664 ,  Y10T436/21

摘要： A system and method are provided for minimizing the effects of background signals in masking signals indicating the presence of substances to be detected such as contaminants in materials moving rapidly along a conveyor. The contaminants detected may include nitrogen containing compounds and hydrocarbons. The system and method of the present invention minimize during detection of the presence or absence of such substances, the number of falsely positive indications of the presence of such substances due to background signals and changes in background signals. The substances detected are divided into first and second sample portions and the respective portions are heated. The first heated portion is mixed with ozone to cause a chemical reaction therewith in order to generate radiation by chemiluminescence having characteristic wavelengths related to substances in the first portion. The second portion heated is also mixed with ozone to cause a chemical reaction therewith in order to generate radiation by chemiluminescence having characteristic wavelengths related to substances in the second portion. The radiation of the respective first and second portions is selectively detected. The heating and detecting steps are performed in a manner so as to yield a higher level of detected radiation from one of the portions of the sample then the other for at least some of the selected compounds being detected. Electrical signals from the respective first and second portions are generated and compared in order to determine the presence or absence of selected compounds in the sample. Appropriate reject signals for a bottle sorting system are generated accordingly.

摘要翻译： 提供了一种系统和方法，用于最小化背景信号在屏蔽指示待检测物质的存在的信号中的影响，例如沿着传送器快速移动的材料中的污染物。 检测到的污染物可能包括含氮化合物和碳氢化合物。 本发明的系统和方法在检测到这种物质的存在或不存在期间最小化了由于背景信号和背景信号的变化而导致的这种物质的存在的错误的阳性迹象的数量。 所检测的物质被分成第一和第二样品部分，并且各个部分被加热。 将第一加热部分与臭氧混合以引起与其的化学反应，以通过具有与第一部分中的物质相关的特征波长的化学发光来产生辐射。 加热的第二部分也与臭氧混合以引起与其的化学反应，以通过具有与第二部分中的物质相关的特征波长的化学发光产生辐射。 选择性地检测相应的第一和第二部分的辐射。 加热和检测步骤以这样的方式进行，以便从样品的一个部分产生更高水平的检测到的辐射，然后对于检测到的至少一些所选化合物产生另一个。 产生并比较来自相应的第一和第二部分的电信号，以确定样品中选定化合物的存在或不存在。 相应地生成用于瓶分选系统的适当拒绝信号。

公开(公告)号：US5808178A

公开(公告)日：1998-09-15

申请号：US731573

申请日：1996-10-16

申请人： David P. Rounbehler ,  Eugene K. Achter ,  David H. Fine ,  George B. Jarvis ,  Stephen J. MacDonald ,  David B. Wheeler ,  Clayton D. Wood

发明人： David P. Rounbehler ,  Eugene K. Achter ,  David H. Fine ,  George B. Jarvis ,  Stephen J. MacDonald ,  David B. Wheeler ,  Clayton D. Wood

IPC分类号： G01N30/02 ,  G01N30/06 ,  G01N30/12 ,  G01N30/16 ,  G01N30/20 ,  G01N30/30 ,  G01N30/40 ,  G01N30/46 ,  G01N30/60 ,  G01N30/84 ,  G01N30/54

CPC分类号： G01N30/30 ,  G01N2030/025 ,  G01N2030/062 ,  G01N2030/121 ,  G01N2030/122 ,  G01N2030/123 ,  G01N2030/3015 ,  G01N2030/303 ,  G01N2030/3038 ,  G01N2030/3046 ,  G01N2030/3061 ,  G01N2030/3069 ,  G01N2030/3076 ,  G01N2030/3084 ,  G01N2030/402 ,  G01N2030/405 ,  G01N2030/8405 ,  G01N30/06 ,  G01N30/16 ,  G01N30/461 ,  G01N30/466 ,  G01N30/6047

摘要： A high speed gas chromatography system includes a heated isothermal region and a gas chromatography column located externally to the isothermal region. The system also includes a detector and a flow path between the column and the detector. At least a portion of the flow path is positioned in the isothermal region.

摘要翻译： 高速气相色谱系统包括加热的等温区域和位于等温区域外部的气相色谱柱。 该系统还包括检测器和柱与检测器之间的流动路径。 流路的至少一部分位于等温区域中。