公开(公告)号：US10060892B2

公开(公告)日：2018-08-28

申请号：US15310601

申请日：2014-12-11

申请人： University of Oregon

发明人： Michelle Watt ,  Darren W. Johnson ,  Michael M. Haley

IPC分类号： G01N31/00 ,  G01N31/22 ,  C07C275/30 ,  C07C275/34 ,  C07C335/18 ,  C07C275/42 ,  C07C335/16 ,  C07D251/24

CPC分类号： G01N31/227 ,  C07C275/30 ,  C07C275/34 ,  C07C275/42 ,  C07C335/16 ,  C07C335/18 ,  C07C335/20 ,  C07D251/24 ,  G01N31/22

摘要： A compound, or a protonate or salt thereof, having a formula I of: wherein Y represents an optionally substituted aromatic group; n is 1 or 2; a is 0 to 4; R1 and R2 are each independently H; optionally substituted alkyl; optionally substituted aralkyl; acyl; phosphonyl; —SO2R12; —C(O)R13; —C(O)OR14; —C(O)NR15R16; —C(O)CH2R17; or —C(S)—NR18R19; —S(O)R20; or —SO2NR21R22, wherein R12-R22 are each independently H, optionally substituted alkyl, optionally substituted aralkyl, optionally substituted aryl, or —C(O)R23, wherein R23 is H, optionally substituted alkyl, optionally substituted aralkyl, or optionally substituted aryl; and each R3 is independently optionally substituted alkyl, halogen, optionally substituted alkoxy, optionally substituted carboxyl, amide; amino; or nitro.

公开(公告)号：US10054570B2

公开(公告)日：2018-08-21

申请号：US14946597

申请日：2015-11-19

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Gang Sun ,  Sanaz Ghanbari

IPC分类号： G01N31/22 ,  G01N21/29 ,  G01N21/78

CPC分类号： G01N31/22 ,  G01N21/293 ,  G01N21/78 ,  G01N21/783

摘要： Methods and kits for detection of alkylating agents are described. The present invention discloses methods and kits comprising sensors for the rapid detection of chemical agents (e.g., alkylating agents) at low concentrations. The methods are useful for the detection of alkylating agents such as field fumigants such as methyl bromide or methyl iodide. The detection can advantageously be performed by a change in light absorbance of the sensor moiety using the naked eye.

公开(公告)号：US20180224379A1

公开(公告)日：2018-08-09

申请号：US15748105

申请日：2016-07-28

申请人： CAPE BRETON UNIVERSITY

发明人： Xu ZHANG ,  Zhi SHAN

IPC分类号： G01N21/78 ,  G01N31/22

CPC分类号： G01N21/78 ,  G01N31/22

摘要： Disclosed herein is a method for detecting copper(II) in a liquid sample. The method generally comprises contacting a liquid sample, such as water, with a chromogen, such as TMB, in the presence of a suitable halide, such as chloride or bromide, and an oxidizer, such as hydrogen peroxide; and detecting a color change of the chromogen. A color change signifies the presence of copper in the sample. Compositions and kits are also provided. The presence of said suitable halide was found to amplify the detection signal.

公开(公告)号：US10041887B2

公开(公告)日：2018-08-07

申请号：US15102309

申请日：2014-11-11

申请人： METALLOGENICS Co., Ltd.

发明人： Hiroko Suzuki ,  Takuya Iwabuchi ,  Kazuhiro Koide ,  Tsugikatsu Odashima

IPC分类号： G01N21/78 ,  G01N31/22 ,  C07D487/22

CPC分类号： G01N21/78 ,  C07D487/22 ,  G01N31/22

摘要： A lithium reagent composition for determining lithium concentration, with which it is possible to instantaneously determine the amount of lithium contained in an aqueous solution, such as a biosample or an environmental sample, by means of a simple colorimeter or ultraviolet-visible spectrophotometer and which renders a visual assessement possible; and a method and device for quantifying lithium ions using the composition. A lithium reagent composition obtained by mixing the compound represented by the structural formula, wherein all of the hydrogen atoms bonded to carbon atoms of tetraphenylporphyrin have been replaced with fluorine atoms, as a chelating agent with a basic organic compound selected from monoethanolamine, diethanolamine, and triethanolamine and producing an aqueous solution thereof that further contains a pH regulator with which the pH has been regulated to 5 or higher; and a method and device for quantifying lithium ions using the composition.

公开(公告)号：US20180172596A1

公开(公告)日：2018-06-21

申请号：US15737534

申请日：2015-06-17

申请人： TOTAL SA ,  UNIVERSITE CLAUDE BERNARD LYON 1 ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

发明人： Christian HURTEVENT ,  Salima BARAKA-LOKMANE ,  Olivier TILLEMENT ,  Arthur MARAIS ,  Mattéo MARTINI ,  Mahmoud OULD-METIDJI ,  Francisco VASQUEZ VELADO ,  Florian LEPOIVRE

IPC分类号： G01N21/77 ,  G01N33/28 ,  G01N21/64

CPC分类号： G01N21/77 ,  C09K8/528 ,  C09K2208/32 ,  G01N21/6408 ,  G01N21/643 ,  G01N31/22 ,  G01N33/2835 ,  G01N2021/7786

摘要： A method for detecting and quantifying additives in a complex aqueous fluid, and a method for detecting an inhibitor of mineral deposition or corrosion, injected in a gas or oil well. The invention also relates to a developer solution including a lanthanide and a chelating agent for detecting said additives or inhibitors.

公开(公告)号：US09983185B2

公开(公告)日：2018-05-29

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

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：US20180136178A1

公开(公告)日：2018-05-17

申请号：US15353047

申请日：2016-11-16

申请人： RAYTHEON COMPANY

发明人： William J. Wolfgong ,  Stephen T. Fasolino

IPC分类号： G01N31/22 ,  G01N21/78

CPC分类号： G01N31/22 ,  G01N21/78

摘要： A method for testing for the presence of a trivalent chromium conversion coating on a metal substrate is provided. According to one embodiment, the method comprises contacting a surface of the metal substrate with at least one solvent to generate a test solution, adding an indicator capable of detecting zirconium to the test solution in an amount sufficient to induce a color change of the test solution if zirconium is present in the test solution, and determining whether a color change indicating the presence of the conversion coating occurs in the test solution.

公开(公告)号：US20180120275A1

公开(公告)日：2018-05-03

申请号：US15712049

申请日：2017-09-21

申请人： Chromatic Technologies, Inc.

发明人： Ruizheng Wang ,  Timothy J. Owen ,  Lyle D. Small

IPC分类号： G01N31/22 ,  G01L7/00 ,  G01L11/00 ,  A23L3/015 ,  A23L5/40

CPC分类号： G01N31/226 ,  A23L3/015 ,  A23L5/40 ,  A23V2002/00 ,  G01L7/00 ,  G01L11/002 ,  G01L11/02 ,  G01N31/22

摘要： A pressure sensor and its use for visually determining whether a preselected pressure threshold has been achieved, for example during high pressure processing treatment of a foodstuff The pressure sensor includes a contained color-changing system having a dye, a developer, and a solvent; upon achievement of the preselected pressure threshold, the dye and the developer interact, resulting in a visible color change. Further, the visible color change can be retained upon a decrease in pressure and upon an increase in temperature, thereby effectively recording the achievement of the preselected pressure threshold during the high pressure processing treatment.

公开(公告)号：US20180095038A1

公开(公告)日：2018-04-05

申请号：US15833467

申请日：2017-12-06

申请人： International Business Machines Corporation

发明人： Eric J. CAMPBELL ,  Sarah K. CZAPLEWSKI ,  Joseph KUCZYNSKI ,  Timothy J. TOFIL

IPC分类号： G01N21/64 ,  G01N21/88 ,  C09D5/22

CPC分类号： C09D5/22 ,  G01N31/22

摘要： Method and apparatus for determining a quality or characteristic of connectors in electronic components is provided. Methods include applying a UV-responsive indicator solution active for Pd, Ni, or Cu to a connector on an electrical component; irradiating the connector with UV radiation; detecting a response to the UV radiation; and determining a quality of the connector based on the response to the UV radiation. Apparatus includes an enclosure; a support; a dispenser oriented toward the substrate support; a source of UV-responsive indicator solution active for Pd, Ni, or Cu ions fluidly coupled to the dispenser; a UV source coupled to the enclosure; and a radiation sensor positioned to detect light inside the enclosure.

公开(公告)号：US09921167B2

公开(公告)日：2018-03-20

申请号：US14920942

申请日：2015-10-23

申请人： University of Cincinnati

发明人： Anastasios Angelopoulos ,  Subasri M Ayyadurai ,  Jonathan A. Bernstein ,  Daniel S. Kanter

IPC分类号： G01N21/78 ,  G01N31/22 ,  G01N21/75 ,  G01N21/77

CPC分类号： G01N21/78 ,  G01N31/22 ,  G01N2021/757 ,  G01N2021/775

摘要： An optical sensor for monitoring an environmental condition, the optical sensor comprising a perfluorosulfonate ionomer membrane comprising a solution, wherein the solution comprises a transition metal-free dye component, wherein exposure of the optical sensor to a specific environmental condition produces a color shift on the optical sensor.