会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 32. 发明授权
    • Use of quaternary ammonium polyelectrolyte salts in test means, test
device and method for determining the ionic strength or specific
gravity of a liquid sample
    • 在测试手段中使用季铵聚电解质盐,用于测定液体样品的离子强度或比重的测试装置和方法
    • US4532216A
    • 1985-07-30
    • US453874
    • 1982-12-27
    • Joseph Y. Wang
    • Joseph Y. Wang
    • G01N9/00G01N27/333G01N31/00G01N31/22G01N33/50G01N33/52G01N9/36G01N31/04
    • G01N33/52G01N33/50G01N9/00
    • A test means, test device, and method for determining the ionic strength or specific gravity of a test sample as well as a method for making the device, are disclosed. The test means comprises a weakly acidic polyelectrolyte polymer, at least 50 percent of the carboxyl groups of which are present in the form of the salt of a quaternary ammonium ion having the structure ##STR1## in which the R substituents, same or different, are hydrogen, lower alkyl or aryl, with the proviso that at least one of R is other than hydrogen; and an indicator means capable of producing a detectable response to ion exchange between the polyelectrolyte salt and the test sample. The device comprises a carrier matrix incorporated with the test means. The method for determining the ionic strength or specific gravity comprises contacting the test sample with the test means or device and observing a detectable response. The method for making the device comprises the steps of reacting the weakly acidic polyelectrolyte polymer with sufficient quaternary ammonium hydroxide to neutralize at least 50 percent of the carboxyl groups to form a polyelectrolyte salt, and incorporating the salt and a pH indicator with a carrier matrix.
    • 公开了用于测定试样的离子强度或比重的测试装置,测试装置和方法以及制造该装置的方法。 测试装置包括弱酸性聚电解质聚合物,其中羧基的至少50%以具有结构“IMAGE”的季铵离子盐的形式存在,其中R取代基相同或不同 氢,低级烷基或芳基,条件是R中的至少一个不是氢; 以及能够产生对聚电解质盐和测试样品之间的离子交换的可检测响应的指示符。 该装置包括与测试装置并入的载体矩阵。 用于测定离子强度或比重的方法包括使测试样品与测试装置或装置接触并观察可检测的响应。 制造该器件的方法包括以下步骤:使弱酸性聚电解质聚合物与足够的氢氧化季铵反应以中和至少50%的羧基以形成聚电解质盐,并将盐和pH指示剂与载体基质结合。
    • 35. 发明授权
    • Combination apparatus and method for chromatographic separation and
quantitative analysis of multiple ionic species
    • 多种离子物质色谱分离和定量分析的组合仪器和方法
    • US4314823A
    • 1982-02-09
    • US75260
    • 1979-09-13
    • William E. Rich, Jr.Frank C. SmithJanet L. McNeill
    • William E. Rich, Jr.Frank C. SmithJanet L. McNeill
    • G01N30/08G01N30/46G01N30/60G01N30/96G01N31/04G01N31/08
    • G01N30/461G01N30/08G01N30/96G01N2030/085G01N2030/965Y10T436/15Y10T436/25375
    • Apparatus and method for chromatographic separation and quantitation of different ions of like charges in a sample, e.g., cations or anions. Referring to anion separation, the sample is directed to a first chromatographic column of the ion exclusion type in which the weak acids (e.g., carboxylic acids) and their salts are partially or totally resolved and separated from a fraction of strong acids (e.g., mineral acids) due to Donnan exclusion. The resolved weak acids may be passed directly to a conductivity cell for quantitative detection. The strong acids may be directed to anion exchange bed with a highly ionized developing reagent and eluted in resolved form with the effluent being passed to a suppressor ion exchange bed wherein the developing reagent is converted to a weakly ionized form without destroying the anion separation. Then, a fraction of the strong acids is detected with the same or a different conductivity cell. Prior to separation, the strong acids are preferably directed through a concentrator column formed of ion exchange resin in which they are retained but not resolved while the remaining solution is removed. Thereafter, the developing agent used for separation of the strong anion is passed through the concentrator column to remove the anions for resolution. The same technique can be employed for cations. In an alternative mode, the system is employed to separate and quantitate weak acids but not the strong ones.
    • 用于色谱分离和定量样品(例如阳离子或阴离子)中类似电荷的不同离子的装置和方法。 关于阴离子分离,样品被引导到离子排斥类型的第一色谱柱,其中弱酸(例如,羧酸)及其盐部分或完全分解并从一部分强酸分离(例如,矿物质 酸)由于Donnan排除。 分解的弱酸可以直接通过导电池进行定量检测。 强酸可以用高度离子化的显影试剂导向阴离子交换床,并以分离形式洗脱,流出物通过抑制离子交换床,其中显影剂转化为弱离子化形式而不破坏阴离子分离。 然后,用相同或不同的电导率电池检测一部分强酸。 在分离之前,强酸优选通过离子交换树脂形成的浓缩塔,其中它们被保留,但是在除去剩余溶液的同时未分解。 此后,用于分离强阴离子的显影剂通过浓缩塔以除去阴离子以进行分辨。 阳离子也可采用相同的技术。 在替代模式中,该系统用于分离和定量弱酸,而不是强酸。
    • 38. 发明授权
    • Solid state sensor
    • 固态传感器
    • US4171341A
    • 1979-10-16
    • US841285
    • 1977-10-12
    • Michael J. Morgan
    • Michael J. Morgan
    • G01N27/62G01N31/04
    • G01N27/626
    • Method and apparatus for selectively sensing the presence of a given constituent within an atmosphere. The apparatus includes a solid state element containing alkali metal ions that react with ions of the given constituent when the two are brought together. The solid state element is housed within a shield that functions as an ion control screen when heated to a predetermined temperature in the presence of a gas or vapor of the given constituent to selectively pass ions of the given constituent into reactive contact with the solid state element housed therein. Circuit means are further provided for detecting a flow of ions through the shield and for producing a discernible signal in response thereto.
    • 用于选择性地感测大气中给定组分的存在的方法和装置。 该装置包括含有碱金属离子的固体元素,当两者被聚集在一起时,该碱金属离子与给定成分的离子反应。 固态元件容纳在屏蔽件内,当在给定组分的气体或蒸汽存在下加热至预定温度时,其用作离子控制屏,以选择性地使给定组分的离子与固体元素反应性接触 容纳在其中。 进一步提供电路装置,用于检测通过屏蔽的离子流,并响应于此产生可识别的信号。
    • 40. 发明授权
    • Chromatographic apparatus for analysis of ionic species
    • 用于离子物质分析的色谱仪
    • US4017262A
    • 1977-04-12
    • US611107
    • 1975-09-08
    • Hamish SmallTimothy S. Stevens
    • Hamish SmallTimothy S. Stevens
    • B01J39/26G01N30/40G01N30/46G01N30/52G01N30/60G01N30/96G01N27/08G01N31/04G01N31/08
    • G01N30/461B01J39/26G01N30/96G01N2030/402G01N2030/525G01N2030/965
    • Apparatus and method for chromatographic quantitative analysis of a solution containing a plurality of species of cations. A sample of the solution is added to a first ion exchange resin bed containing cation exchange resin and eluted therefrom with a solution of developing reagent consisting of either AgNO.sub.3 or BaCl.sub.2, chromatographic separation of the cationic species being achieved as elution proceeds. The effluent from the first ion exchange resin bed is passed through a second ion exchange resin bed containing anion exchange resin in a form appropriate to the precipitation of whichever metal ion is provided by the developing reagent, i.e., chloride or sulfate forms. As elution proceeds the cations exit from the second ion exchange bed without destroying the ionic separation achieved in the first ion exchange resin bed. Each separated cationic species is quantitatively sensed by a detector such as a conductivity cell on exiting from the second ion exchange resin bed.
    • 用于色谱定量分析含有多种阳离子的溶液的装置和方法。 将溶液样品加入到含有阳离子交换树脂的第一离子交换树脂床上,并用由AgNO 3或BaCl 2组成的显影剂的溶液洗脱,洗脱进行时实现阳离子物质的色谱分离。 来自第一离子交换树脂床的流出物通过含有阴离子交换树脂的第二离子交换树脂床,其形式适于沉淀出由显影剂提供的任何金属离子,即氯化物或硫酸盐形式。 随着洗脱进行,阳离子从第二离子交换床离开而不破坏在第一离子交换树脂床中实现的离子分离。 每个分离的阳离子物质通过诸如从第二离子交换树脂床离开的电导率池的检测器进行定量检测。