公开(公告)号：US20180195990A1

公开(公告)日：2018-07-12

申请号：US15797933

申请日：2017-10-30

申请人： King Abdullah University of Science and Technology

发明人： Omar YASSINE ,  Osama SHEKHAH ,  Youssef BELMABKHOUT ,  Mohamed EDDAOUDI ,  Khaled N. SALAMA

IPC分类号： G01N27/12 ,  G01N33/00 ,  G01N27/22

CPC分类号： G01N27/125 ,  G01N27/128 ,  G01N27/226 ,  G01N27/227 ,  G01N33/0044 ,  G01N33/0054 ,  Y02A50/246

摘要： Embodiments of the present disclosure describe a gas sensor comprising a gas-sensing material including a metal-organic framework with fcu topology and a substrate with a pair of electrodes proximate to the gas-sensing material, wherein the gas sensor is configured to detect toxic gas. Embodiments of the present disclosure further describe a method of detecting gas comprising contacting a gas sensor including a metal-organic framework with fcu topology with a gas/vapour composition including at least one toxic gas, capturing the at least one toxic gas from the fluid composition, and measuring an electrical property to detect a presence of the at least one toxic gas.

公开(公告)号：US20180113103A1

公开(公告)日：2018-04-26

申请号：US15673701

申请日：2017-08-10

申请人： NGK INSULATORS, LTD.

发明人： Taku OKAMOTO ,  Yoshinobu NAKADA ,  Kosuke MONNA

IPC分类号： G01N33/00 ,  G01N31/00

CPC分类号： G01N33/0054 ,  G01N27/4074 ,  G01N27/419 ,  G01N31/005 ,  G01N33/0031 ,  Y02A50/246

摘要： A apparatus 70 for measuring ammonia concentration includes an electromotive force acquisition section 75 configured to acquire information about an electromotive force EMF of a mixed potential cell 55 while a detection electrode 51 is exposed to a target gas, an oxygen concentration acquisition section 76 configured to acquire information about oxygen concentration pO2 in the target gas, and a control section 72. The control section 72 derives ammonia concentration pNH3 in the target gas from the acquired information about the electromotive force EMF, the acquired information about the oxygen concentration pO2, and the relationship represented by formula (1): EMF=α loga(pNH3)−β logb(pO2)+B  (1) where α, β, and B each represent a constant, and a and b each represent any base (provided that a≠1, a>0, b≠1, and b>0).

公开(公告)号：US20170369384A1

公开(公告)日：2017-12-28

申请号：US15621156

申请日：2017-06-13

申请人： BIG DUTCHMAN INTERNATIONAL GMBH

发明人： Ludger THEMANN

IPC分类号： C05F3/06 ,  F26B17/00 ,  F24F11/00 ,  C02F11/12 ,  F26B3/04 ,  G01N33/00 ,  F26B5/04 ,  C05F3/00

CPC分类号： C05F3/06 ,  A01K31/04 ,  C02F11/12 ,  C05F3/00 ,  F24F11/30 ,  F24F2110/00 ,  F26B3/04 ,  F26B5/041 ,  F26B17/00 ,  F26B17/008 ,  G01N33/0054 ,  Y02A40/205 ,  Y02A40/208 ,  Y02A50/246 ,  Y02P20/145

摘要： The present invention relates to a drying apparatus for drying a substance, in particular for drying poultry manure, comprising a drying unit with a conveyor, a dry substance sensor and an ammonia sensor.

公开(公告)号：US09835613B2

公开(公告)日：2017-12-05

申请号：US15293935

申请日：2016-10-14

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： Thomas Richard Veltman ,  Chun J. Tsai ,  Matthew William Kanan ,  Gilbert Chu

IPC分类号： G01N27/403 ,  G01N33/49 ,  G01N33/00 ,  G01N27/404 ,  G01N27/407 ,  G01N33/487

CPC分类号： G01N33/4925 ,  G01N27/4045 ,  G01N27/4074 ,  G01N33/0054 ,  G01N33/48707 ,  G01N2800/04 ,  Y02A50/246

摘要： A method for measuring ammonia in a blood sample may involve positioning the blood sample in proximity with an ammonia gas sensor, generating a current with the ammonia gas sensor in response to ammonia gas released from the blood sample, and measuring the current generated by the ammonia gas sensor, using a current measurement member coupled with the ammonia gas sensor. A device for measuring an ammonia level in a blood sample may include a blood sample containment member, an ammonia gas sensor coupled with the blood sample containment member, and a current measurement member coupled with the ammonia gas sensor. The method and device may be used to measure an ammonia level in a blood sample as small as one drop of blood, or approximately 0.05 mL of blood.

公开(公告)号：US20170219549A1

公开(公告)日：2017-08-03

申请号：US15012397

申请日：2016-02-01

申请人： City University of Hong Kong

发明人： Hon-Wah LAM

IPC分类号： G01N33/12 ,  G01N31/22 ,  G01N33/00 ,  C07F15/02 ,  G01N21/78

CPC分类号： G01N33/12 ,  C07F15/02 ,  G01N21/783 ,  G01N31/22 ,  G01N31/223 ,  G01N33/0047 ,  G01N33/0054 ,  Y02A50/246

摘要： A chemosensing hydrogel is provided that undergoes a colorimetric reaction in response to the detection of a biogenic amine vapor, such as a biogenic amine vapor that is a by-product resulting from food spoilage. In an embodiment, an apparatus for detection of biogenic amines, is provided that includes a hydrogel having a bimetallic iron(II)-iron(III) complex disposed within the hydrogel, wherein the hydrogel is configured to change from a first color to a second color in response to exposure to a biogenic amine.

公开(公告)号：US09696291B2

公开(公告)日：2017-07-04

申请号：US14376939

申请日：2014-06-18

申请人： KAUNAS UNIVERSITY OF TECHNOLOGY ,  UAB Ars Lab

发明人： Darius Gailius ,  Rimanté Vinauskiené ,  Augustas Ale{hacek over (s)}iūnas ,  Gediminas Kvaraciejus

IPC分类号： G01N33/12 ,  G01N33/00

CPC分类号： G01N33/12 ,  G01N33/0031 ,  G01N33/0047 ,  G01N33/0054 ,  Y02A50/246

摘要： The invention relates to a new and fast device for determination of freshness of the food of animal origin, specifically to the electronic nose, to a method for determination of freshness of the food by using a portable electronic nose which analyses volatile compounds and gases in the meat headspace, and to a system that includes the electronic nose and the tool for shielding extraneous odors and forming the defined headspace. The invention describes a fast and simple method for determination of the meat freshness, which is easy to use and the results get by it are objective and reliable.

公开(公告)号：US20170184538A1

公开(公告)日：2017-06-29

申请号：US15370069

申请日：2016-12-06

申请人： NGK INSULATORS, LTD.

发明人： Taku OKAMOTO ,  Takayuki SAKURAI ,  Noriko HIRATA ,  Yuki NAKAYAMA

IPC分类号： G01N27/407 ,  G01N27/406 ,  G01N27/30

CPC分类号： G01N27/4074 ,  G01N27/301 ,  G01N27/4067 ,  G01N27/4075 ,  G01N27/4076 ,  G01N27/4077 ,  G01N33/0054 ,  Y02A50/246

摘要： Provided is a gas sensor which is capable of preferably sensing an ammonia gas, and has excellent durability. A mixed-potential gas sensor includes a sensor element composed of an oxygen-ion conductive solid electrolyte, and a heater provided inside the element. The sensor element includes on a surface thereof a sensing electrode formed of a cermet including Pt, Au and an oxygen-ion conductive solid electrolyte, and also includes a reference electrode formed of a cermet of Pt and an oxygen-ion conductive solid electrolyte, and a porous electrode protective layer whose porosity is 5 to 40% covering at least the sensing electrode. The Au abundance ratio in a surface of noble metal particles forming the sensing electrode is 0.4 or more. The concentration of an ammonia gas is determined on the basis of a potential difference occurring between the sensing electrode and the reference electrode when the sensor element is disposed in a measurement gas and heated to 400° C. to 800° C.

公开(公告)号：US20160169852A1

公开(公告)日：2016-06-16

申请号：US14570401

申请日：2014-12-15

申请人： Aerodyne Research, Inc.

发明人： Joseph R. Roscioli ,  Scott C. Herndon ,  David D. Nelson, JR.

IPC分类号： G01N33/00 ,  G01J3/10

CPC分类号： G01N33/006 ,  B01J19/002 ,  B01J2219/02 ,  C12M41/32 ,  G01J3/108 ,  G01J2003/102 ,  G01N27/4141 ,  G01N27/4145 ,  G01N33/0037 ,  G01N33/0054 ,  G01N33/0062 ,  Y02A50/245 ,  Y02A50/246

摘要： In one embodiment, active (continuous or intermittent) passivation may be employed to prevent interaction of sticky molecules with interfaces inside of an instrument (e.g., an infrared absorption spectrometer) and thereby improve response time. A passivation species may be continuously or intermittently applied to an inlet of the instrument while a sample gas stream is being applied. The passivation species may have a highly polar functional group that strongly binds to either water or polar groups of the interfaces, and once bound presents a non-polar group to the gas phase in order to prevent further binding of polar molecules. The instrument may be actively used to detect the sticky molecules while the passivation species is being applied.

摘要翻译： 在一个实施方案中，可以使用活性（连续或间歇）钝化来防止粘性分子与仪器内部的界面（例如，红外吸收光谱仪）的相互作用，从而提高响应时间。 当应用样品气流时，钝化物质可以连续地或间歇地施加到仪器的入口。 钝化物质可以具有与界面的水或极性基团强烈结合的高极性官能团，并且一旦结合，将非极性基团提供给气相，以防止极性分子的进一步结合。 当施加钝化物质时，该仪器可以被主动用于检测粘性分子。

公开(公告)号：US20160116430A1

公开(公告)日：2016-04-28

申请号：US14890757

申请日：2014-09-01

申请人： DRÄGER SAFETY AG & CO.

发明人： Andreas NAUBER ,  Michael SICK ,  Gregor STEINER ,  Marie-Isabell MATTERN-FRÜHWALD ,  Rigobert CHRZAN ,  Sabrina SOMMER ,  Frank METT ,  Andreas HENGSTENBERG

IPC分类号： G01N27/404 ,  G01N33/00

CPC分类号： G01N27/4045 ,  G01N33/0054 ,  Y02A50/246

摘要： A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.

摘要翻译： 用于检测NH 3或含有NH 3的气体混合物的电化学气体传感器的液体电解质包含至少一种溶剂，一种导电盐和/或一种有机介体。 导电盐是离子液体，无机盐，有机盐或其混合物。 电解质优选由（I）水，碳酸亚丙酯，碳酸亚乙酯或其作为溶剂的混合物组成; （ii）LiCl，KCl，四丁基铵甲苯磺酸盐或1-己基-3-甲基咪唑三（五氟乙基）三氟磷酸盐作为导电盐; 和（iii）叔丁基氢醌或蒽醌-2-磺酸酯作为有机介体。

公开(公告)号：US20160109421A1

公开(公告)日：2016-04-21

申请号：US14833900

申请日：2015-08-24

申请人： Temasek Polytechnic

发明人： Christian Gert Bluchel ,  Yanmei Wang ,  Hua Zhang ,  Jui Pin Er ,  Kim Jyh Wong

IPC分类号： G01N33/00

CPC分类号： G01N33/0054 ,  A61M1/1694 ,  B01D61/24 ,  G01N1/2205 ,  Y02A50/246

摘要： A sensing system for detecting a substance in a dialysate. The system includes a hydrophobic barrier capable of allowing the substance in the dialysate to equilibrate through the barrier to a gas. The system also includes a detector capable of detecting the gas and an interface disposed between the hydrophobic barrier and the detector and configured to allow transport of the gas between the hydrophobic barrier and the detector following a concentration gradient of the gas along the interface.

摘要翻译： 用于检测透析液中的物质的感测系统。 该系统包括能够使透析液中的物质通过屏障平衡至气体的疏水屏障。 该系统还包括能够检测气体的检测器和设置在疏水屏障和检测器之间的界面，并被配置为允许气体沿着界面沿着气体的浓度梯度在疏水屏障和检测器之间传输。