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1. 发明授权

US10012622B2 Gaseous mercury detection systems, calibration systems, and related methods 有权
公开(公告)号：US10012622B2
公开(公告)日：2018-07-03
申请号：US14811317
申请日：2015-07-28
申请人： Seth N Lyman
发明人： Seth N Lyman
IPC分类号： G01N30/72 , G01N33/00 , H01J49/04 , G01N30/08 , G01N30/62 , G01N30/02 , G01N30/12 , G01N30/14
CPC分类号： G01N30/7206 , G01N30/08 , G01N33/0045 , G01N2030/025 , G01N2030/085 , G01N2030/121 , G01N2030/143 , G01N2030/626 , H01J49/0422
摘要： Embodiments disclosed herein are directed to gaseous mercury detection systems, calibration systems, and related methods. The gaseous mercury detection systems are configured to detect gas-phase mercury-compounds present in ambient air. For example, the gaseous mercury detection systems collect gas-phase mercury-compounds from ambient air and release the gas-phase mercury-compounds at concentrations capable of being measured by a gas-chromatography mass spectrometer without heating the gas-phase mercury-compounds above a decomposition temperature of at least one gaseous mercury compound that may present in the mercury-containing gas. The calibration systems are configured to determine an accuracy of or calibrate a gaseous mercury detection system. The disclosed calibration systems may be integrated with or distinct from the gaseous mercury detection systems disclosed herein.

2. 发明申请

US20180180579A1 Method and system for low temperature detection of semi volatile organic compounds 审中-公开
公开(公告)号：US20180180579A1
公开(公告)日：2018-06-28
申请号：US15852655
申请日：2017-12-22
申请人： MAX Analytical Technologies, Inc.
发明人： Martin L. Spartz , Alice Elizabeth Delia , Peter Paul Behnke , Charles Mark Phillips
IPC分类号： G01N30/74 , G01N30/14 , G01N1/22 , G01N21/05
CPC分类号： G01N30/74 , G01N1/22 , G01N1/42 , G01N21/05 , G01N30/14 , G01N2021/3595 , G01N2030/025 , G01N2030/128 , G01N2030/143 , G01N2030/3038 , G01N2030/743
摘要： A sample analysis method includes directing a sample that contains one or more SVOC components to a GC column to temporally separate components present in the sample. Output gas from the GC column is expanded into a sample cell. The sample cell is held at a temperature and pressure that are lower than the temperature and pressure at an outlet of the GC column. The volume of the sample cell is sufficiently large for maintaining the one or more SVOC components in a gaseous phase. Infrared spectra of the components in the sample cell are obtained using a Fourier transform infrared spectrometry system.

3. 发明申请

US20180172646A1 Microfabricated Staged Preconcentration and Parallel Column for Gas Chromatography 审中-公开
公开(公告)号：US20180172646A1
公开(公告)日：2018-06-21
申请号：US15380064
申请日：2016-12-15
申请人： David R. Hall , Dan Allen , Steven Butala , Terrece Pearman
发明人： David R. Hall , Dan Allen , Steven Butala , Terrece Pearman
IPC分类号： G01N30/14
CPC分类号： G01N30/14 , G01N2030/0095 , G01N2030/025 , G01N2030/062 , G01N2030/143
摘要： We disclose a microfabricated device for both extracting and preconcentrating samples for gas chromatography analysis. The device includes a conduit with at least two sections and multiple ports which may be connected to multiple gas chromatography columns. The inner surface of the conduit may be coated with multiple sorbents which bind volatile analytes with different affinities. The sections of the conduit may be divided by a thermal barrier which inhibits heat transfer between sections. Consequently, each section may be independently heated to encourage desorption of volatile analytes. The disclosed device separates and concentrates volatile analytes into different pools according to their chemical and physical properties before they enter a gas chromatography column that is optimized for that pool. The device reduces the amount of heat and time needed to perform gas chromatography analysis as well as avoids the need for purified gas sources typically used for the moving phase.

4. 发明申请

US20170299586A1 METHOD OF DETECTING AN ANALYTE USING CHROMATOGRAPHIC ENRICHMENT 审中-公开
公开(公告)号：US20170299586A1
公开(公告)日：2017-10-19
申请号：US15514139
申请日：2015-10-05
申请人： 3M INNOVATIVE PROPERTIES COMPANY
发明人： NEIL PERCY , GREGORY W. SITTON
IPC分类号： G01N33/558 , C12Q1/68 , G01N1/40 , B01D15/08 , G01N33/543 , G01N30/14 , G01N33/569 , G01N30/02
CPC分类号： G01N33/558 , B01D15/08 , C12Q1/6888 , G01N1/405 , G01N30/14 , G01N33/54366 , G01N33/569 , G01N33/56911 , G01N33/56916 , G01N2030/027 , G01N2030/143 , G01N2333/245
摘要： A device is provided. The device comprises a casing comprising an interior, a first opening, and a second opening; and a porous carrier comprising a sample-receiving zone and a target analyte-binding zone. The porous carrier defines a first fluid pathway that extends from the sample-receiving zone to the target analyte-binding zone. At least portion of the porous carrier is disposed in the interior of the casing. A second fluid pathway comprising a central axis extends through the casing from the first opening and the second opening, the second fluid pathway intersecting the porous carrier at the target analyte-binding zone. The central axis is oriented orthogonally with respect to the porous carrier. Methods of using the device to detect a target analyte are also provided.

5. 发明申请

US20170261475A1 APPARATUS AND METHOD FOR MITIGATION OF ALTERATIONS IN MASS SPECTROMETRY IN THE PRESENCE OF HYDROGEN 审中-公开
公开(公告)号：US20170261475A1
公开(公告)日：2017-09-14
申请号：US15529309
申请日：2015-11-20
申请人： Marco CISTERNI
发明人： Marco CISTERNI
IPC分类号： G01N30/72 , G01N30/14
CPC分类号： G01N30/7206 , G01N30/14 , G01N2030/143 , H01J49/0031 , H01J49/10 , H01J49/145 , H01J49/147
摘要： Gas chromatograph-mass spectrometer comprising an ion source, the walls of which are realized or covered with at least one layer of graphene. Thus realized, the gas chromato graph-mass spectrometer proves to be particularly suited to the analysis samples containing hydrogen in addition to the substances to be analyzed. This situation generally occurs when the mass spectrometer is coupled to a gas chromatograph that utilizes hydrogen as the carrier gas.

6. 发明申请

US20160327526A1 Method for ion detection 审中-公开
标题翻译：离子检测方法
公开(公告)号：US20160327526A1
公开(公告)日：2016-11-10
申请号：US15213485
申请日：2016-07-19
申请人： John N. Driscoll
发明人： John N. Driscoll
IPC分类号： G01N30/64 , G01N27/64 , G01N30/30
CPC分类号： G01N30/64 , G01N27/628 , G01N27/64 , G01N30/06 , G01N30/30 , G01N30/88 , G01N30/96 , G01N33/0013 , G01N33/0045 , G01N2030/009 , G01N2030/025 , G01N2030/067 , G01N2030/085 , G01N2030/143 , G01N2030/642 , G01N2030/8868 , G01N2030/8872 , G01N2033/0019
摘要： A method and apparatus for detecting mercury in air includes passing a substantial quantity of air through a concentrator column containing gold film whereby a gold-mercury amalgam is formed, purging the concentrator column with nitrogen gas for a predefined period of time to remove oxygen and other organics from the concentrator column, quickly heating the concentrator column to a substantial temperature to decompose the gold-mercury amalgam forming mercury gas, and injecting the mercury gas into a photoionization detector system. The apparatus includes a quartz housing having a quartz body defining an internal volume, a gas inlet, a gas outlet, and a heater end, and a concentrator element sealingly disposed within the quartz housing, the concentrator element having a first element portion and a second element portion, a film of gold deposited on at least a first element portion disposed in the quartz body.
摘要翻译：用于检测空气中的汞的方法和装置包括使大量的空气通过含有金膜的浓缩塔，由此形成金 - 汞汞齐，用氮气吹扫浓缩塔预定的时间以除去氧气等有机物从浓缩塔中迅速将浓缩塔加热至相当高的温度，以分解形成汞的汞 - 汞合金，并将汞气注入光电离检测器系统。该装置包括具有限定内部体积的石英体的石英壳体，气体入口，气体出口和加热器端，以及密封地设置在石英壳体内的浓缩器元件，所述浓缩器元件具有第一元件部分和第二元件部分元件部分，沉积在设置在石英体中的至少第一元件部分上的金膜。

7. 发明授权

US09267866B2 Capillary microextractor of volatiles (CMV) 有权
标题翻译：挥发物毛细管微萃取（CMV）
公开(公告)号：US09267866B2
公开(公告)日：2016-02-23
申请号：US14206250
申请日：2014-03-12
申请人： Jose Almirall , Wen Fan
发明人： Jose Almirall , Wen Fan
IPC分类号： G01N1/22 , G01N1/20 , G01N30/08 , G01N1/02 , G01N30/60 , G01N30/72 , G01N30/14 , G01N30/00 , G01N30/06
CPC分类号： G01N1/2214 , G01N1/2035 , G01N30/08 , G01N30/6095 , G01N30/72 , G01N2001/022 , G01N2001/2223 , G01N2030/009 , G01N2030/062 , G01N2030/085 , G01N2030/143
摘要： A capillary microextractor of volatiles (CMV) allows the sampling of diagnostic volatiles that can be an explosive, explosive taggant, drug, poison, decomposition products thereof, a mixture of chemicals comprising an odor signature determined from detector dog trials, or volatile organic compounds indicative of a disease or other medical condition. The CMV has a thermally stable housing with orifices to allow the contact of a gas that contains one or more diagnostic volatiles with an absorbent that extracts and concentrates the diagnostic volatiles. After sampling, the CMV with the absorbed diagnostic volatiles can be placed in an ionized gas beam and introduced into a mass spectrometer or placed in a thermal desorption unit (TDU), where, upon heating, the diagnostic volatiles are released to an inlet port of an analytical instrument. Analytical instruments that can be used include gas chromatographs and ion mobility spectrometers for separation and mass spectrometers for unambiguous identification of the diagnostic volatiles.
摘要翻译：挥发物（CMV）的毛细管微萃取器允许对可能是爆炸性，爆炸性的标记物，药物，毒物，其分解产物的诊断性挥发物进行取样，包括由检测器狗试验确定的气味特征的化学物质混合物或指示性的挥发性有机化合物疾病或其他医疗状况。 CMV具有热稳定的壳体，其具有孔口以允许含有一种或多种诊断性挥发物的气体与提取并浓缩诊断性挥发物的吸收剂接触。在采样之后，具有吸收的诊断挥发物的CMV可以放置在电离气体束中并被引入质谱仪或放置在热解吸单元（TDU）中，其中在加热时将诊断性挥发物释放到分析仪器可以使用的分析仪器包括气相色谱仪和用于分离的离子迁移谱仪和质谱仪，用于明确识别诊断挥发物。

8. 发明申请

US20110259798A1 PROCESS 有权
标题翻译：处理
公开(公告)号：US20110259798A1
公开(公告)日：2011-10-27
申请号：US13132614
申请日：2009-12-03
申请人： Lee-Huat Chia , Simon Yew-Meng Chool
发明人： Lee-Huat Chia , Simon Yew-Meng Chool
IPC分类号： C10G25/00
CPC分类号： G01N33/2835 , C10G19/02 , C10G75/00 , C10G75/02 , C10G2300/202 , C10G2300/4075 , G01N2030/143
摘要： Process for reducing the concentration of water-soluble carboxylic acids in a hydrocarbonaceous mixture which process comprises (i) taking a sample from the hydrocarbonaceous mixture and extracting the water-soluble carboxylic acids from the sample, (ii) subjecting the extracted water-soluble carboxylic acids to chromatography, (iii) calculating the concentration of water-soluble carboxylic acids in the hydrocarbon mixture based on the chromatography results, and (iv) reducing the concentration of water-soluble carboxylic acids in the hydrocarbonaceous mixture.
摘要翻译：用于降低烃混合物中的水溶性羧酸浓度的方法，该方法包括（i）从含烃混合物中取出样品并从样品中提取水溶性羧酸，（ii）将提取的水溶性羧酸（iii）基于色谱结果计算烃混合物中的水溶性羧酸的浓度，和（iv）降低含烃混合物中的水溶性羧酸的浓度。

9. 发明授权

US07451634B2 Chromatographic methods for measuring impurities in a gas sample 有权
标题翻译：用于测量气体样品中杂质的色谱方法
公开(公告)号：US07451634B2
公开(公告)日：2008-11-18
申请号：US11361068
申请日：2006-02-22
申请人： Yves Gamache , André´ Fortier
发明人： Yves Gamache , André´ Fortier
IPC分类号： G01N30/04 , G01N30/46 , G01N30/88
CPC分类号： G01N30/461 , G01N30/14 , G01N30/465 , G01N2030/025 , G01N2030/143 , G01N2030/8872
摘要： An improved chromatographic method for measuring impurities in a gas sample that allows extraction of a peak of impurity masked by the sample background. An impurity peak is extracted from the sample background and put in a second sample loop and the second sample loop volume is injected into a second separation column. A “slice” is taken from the sample background to fill the second sample loop and the “slice”, whose width is preferably substantially equal to the impurities peak width, is injected into the second separation column. Another embodiment allows concentration of a predetermined impurity, thereby providing an improved precision on the results. The chromatographic method provides an improved measure of argon in oxygen, oxygen in argon and oxygen in hydrogen.
摘要翻译：用于测量气体样品中的杂质的改进的色谱方法，其允许提取由样品背景掩蔽的杂质峰。从样品背景中提取杂质峰，并放入第二样品环中，将第二样品环体积注入第二分离柱。从样本背景获取“切片”以填充第二样品环，并且将其宽度优选基本上等于杂质峰宽的“切片”注入第二分离柱。另一个实施方案允许浓缩预定的杂质，从而提供对结果的改进的精度。色谱方法提供氧气中氩气，氩气中的氧气和氢气中的氧气的改进测量。

10. 发明申请

US20060245975A1 Adsorbent housing with separated adsorption outflow and desorption inflow 有权
公开(公告)号：US20060245975A1
公开(公告)日：2006-11-02
申请号：US11407480
申请日：2006-04-20
申请人： Andrew Tipler , Richard Edwards , James Botelho
发明人： Andrew Tipler , Richard Edwards , James Botelho
IPC分类号： G01N30/02
CPC分类号： G01N30/08 , G01N30/12 , G01N2001/2229 , G01N2030/025 , G01N2030/085 , G01N2030/121 , G01N2030/127 , G01N2030/143 , G01N30/40 , G01N2030/405 , G01N30/10
摘要： A system for pre-concentrating analytes in a sample prior to introduction into a chromatographic column is generally disclosed comprising a housing, an adsorbent disposed in the housing, and first and second conduits having an inlet and an outlet, respectively, for transferring fluid out of and into the housing during adsorption/dry purge and desorption stages, respectively. In some embodiments, the inlet of the first conduit and the outlet of the second conduit are both disposed in one end of the housing and are offset from each other with respect to the adsorbent.

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