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2301 条记录 (耗时 0.031 秒)

    Universal Solvent Indicating System
    42.
    发明申请
    Universal Solvent Indicating System 审中-公开

    公开(公告)号：US20170254802A1

    公开(公告)日：2017-09-07

    申请号：US15589727

    申请日：2017-05-08

    申请人： Brady Worldwide, Inc.

    发明人： Matthew Kasper ,  Michael Labelle ,  Nicholas Krogman ,  Bethany Grillo

    IPC分类号： G01N33/52

    CPC分类号： G01N33/525 ,  G01N31/22

    摘要： A saturation indication system includes a sorbent body with a film backing being irreversibly bonded to the sorbent body. A universal indicating ink formulation is at least partially coated onto the film backing such that the ink formulation is disposed between the film backing and the sorbent body. The universal indicating ink formulation includes a resin and a dye dispersed in the resin. The dye is configured to indicate a state of saturation of the sorbent body, with the resin and the dye being soluble in a plurality of categories of sorbates consisting of hydrophobic sorbates, hydrophilic sorbates, neutral sorbates, and amphiphilic sorbates.

    Control over etching molecule levels in etching compositions
    44.
    发明授权
    Control over etching molecule levels in etching compositions 有权

    公开(公告)号：US09677998B2

    公开(公告)日：2017-06-13

    申请号：US14575060

    申请日：2014-12-18

    申请人： Ecolab USA Inc.

    发明人： Amy M. Tseng ,  Brian V. Jenkins ,  Robert M. Mack

    IPC分类号： G01N21/25 ,  G01N31/22 ,  G01N21/80

    CPC分类号： G01N21/255 ,  G01N21/80 ,  G01N31/22

    摘要： A method of detecting and measuring the presence of ammonium fluoride in a buffered oxide etchant (“BOE”) composition is provided. The method comprises contacting a BOE composition with a chromogenic agent selected from bromothymol blue, Eosin-Bluish, indophenol blue, bromocresol green, orthophthaldialdehyde, tetraphenylprophyrin, acridine orange, naphthalene-2,3-dicarboxaldehyde, 2-mercaptoethanol, n-acetylcysteine, luminal, bromocresol purple, or bromophenol blue and at least one of sodium hydroxide, ammonium nitrate, ammonium chloride, tartaric acid, octylphenoxypolyethoxyethanol, Triton X-100, borate buffer, sodium chloride, sodium tetra borate decahydrate, sodium sulfite, and Brij35 to form a treated BOE composition, the treated BOE composition having spectroscopic properties resulting from the contacting that correlate with the amount of ammonium fluoride in the treated BOE composition, performing a spectrometric measurement of the spectroscopic properties of the treated BOE composition, and comparing the spectrometric measurement to pre-determined values to identify the amount of ammonium fluoride in the BOE composition.

    Use of Visibly Detectable Compounds as Performance Reference Compounds in Passive Sampling Devices
    46.
    发明申请
    Use of Visibly Detectable Compounds as Performance Reference Compounds in Passive Sampling Devices 审中-公开

    公开(公告)号：US20170115265A1

    公开(公告)日：2017-04-27

    申请号：US15299580

    申请日：2016-10-21

    申请人： Geosyntec Consultants, Inc.

    发明人： Jason Michael Conder

    IPC分类号： G01N33/18

    CPC分类号： G01N33/1826 ,  G01N1/10 ,  G01N1/405 ,  G01N31/22 ,  G01N2001/1006

    摘要： In some embodiments, the invention provides a visibly detectable performance reference compound for use in a passive sampling device to detect an analyte of interest (and/or the amount of the analyte of interest) in an environment. In some embodiments, the invention provides a passive sampling device comprising a visibly detectable performance reference compound for use in detecting an analyte of interest (and/or the amount of the analyte of interest) in an environment. In some embodiments, the invention provides a kit comprising a first visibly detectable performance reference compound and a second visibly detectable performance reference compound for use in a passive sampling device to detect an analyte of interest (and/or the amount of the analyte of interest) in an environment. In some embodiments, invention provides a method to detect an analyte (and/or the amount of the analyte) in an environment using a passive sampling device comprising a visibly detectable performance reference compound.

    A TEST STRIP FOR MELAMINE DETECTION
    50.
    发明申请
    A TEST STRIP FOR MELAMINE DETECTION 审中-公开
    用于梅花检测的测试条

    公开(公告)号：US20170074849A1

    公开(公告)日：2017-03-16

    申请号：US15123609

    申请日：2015-03-05

    申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ,  THE UNIVERSITY OF MIAMI

    发明人： Fang Wei ,  Na Li

    IPC分类号： G01N33/04 ,  G01N21/78

    CPC分类号： G01N33/04 ,  B82Y15/00 ,  G01N21/78 ,  G01N31/00 ,  G01N31/22 ,  G01N33/48707 ,  G01N2021/757 ,  G01N2021/7759 ,  G01N2021/7766

    摘要： Described here is a test strip for detection of melamine, comprising: a support configured for capillary flow of a fluid sample from a first end of the support to a second end of the support that is downstream from the first end; a conjugation pad disposed adjacent to the first end of the support and including nanoparticles configured for suspension in the sample flowing past the conjugation pad, the nanoparticles configured to produce a colorimetric effect when exposed to melamine; and a test portion downstream of the conjugation pad and including a molecular recognition agent immobilized on the support and having an affinity for melamine.

    摘要翻译： 这里描述的是用于检测三聚氰胺的测试条，包括：支撑件，其构造成用于将流体样品从支撑件的第一端毛细管流到支撑件的第二端，该第二端在第一端的下游; 接合垫，其布置成邻近所述支撑体的第一端并且包括被配置为悬浮在流过所述共轭垫的样品中的纳米颗粒，所述纳米颗粒构造成当暴露于三聚氰胺时产生比色效应; 和缀合垫下游的测试部分，并且包括固定在载体上并对三聚氰胺具有亲和力的分子识别剂。