CONTROL APPARATUS FOR DISPENSING SMALL PRECISE AMOUNTS OF LIQUID REAGENTS

    公开(公告)号:US20170096447A1

    公开(公告)日:2017-04-06

    申请号:US15381843

    申请日:2016-12-16

    申请人: CEM Corporation

    摘要: A precision volumetric liquid dispensing instrument is disclosed that includes two pressure sensors and a fluid passageway with a defined volume portion in communication with the two sensors for receiving and distributing liquid in relatively small volumes. One of the pressure sensors is positioned to measure pressure at one portion of the defined volume portion of the fluid passageway and the other of the gas pressure sensors is positioned to measure gas pressure at a different portion of the defined volume portion of the passageway. At least one valve is in communication with the passageway for moving fluids into or out of the defined volume portion of the fluid passageway, and a processor carries out a step selected from the group consisting of (i) calculating the volume of the liquid based upon the measured pressure and (ii) metering a liquid into the defined volume portion of the fluid passageway until the measured pressure indicates that a desired volume of fluid is in the fluid passageway.

    CONTROL APPARATUS FOR DISPENSING SMALL PRECISE AMOUNTS OF LIQUID REAGENTS

    公开(公告)号:US20170095786A1

    公开(公告)日:2017-04-06

    申请号:US15381861

    申请日:2016-12-16

    申请人: CEM Corporation

    摘要: A precision volumetric liquid dispensing instrument is disclosed that includes two pressure sensors and a fluid passageway with a defined volume portion in communication with the two sensors for receiving and distributing liquid in relatively small volumes. One of the pressure sensors is positioned to measure pressure at one portion of the defined volume portion of the fluid passageway and the other of the gas pressure sensors is positioned to measure gas pressure at a different portion of the defined volume portion of the passageway. At least one valve is in communication with the passageway for moving fluids into or out of the defined volume portion of the fluid passageway, and a processor carries out a step selected from the group consisting of (i) calculating the volume of the liquid based upon the measured pressure and (ii) metering a liquid into the defined volume portion of the fluid passageway until the measured pressure indicates that a desired volume of fluid is in the fluid passageway.

    Pressure stepped microwave assisted digestion
    44.
    发明授权
    Pressure stepped microwave assisted digestion 有权
    压力步进微波辅助消化

    公开(公告)号:US09237608B2

    公开(公告)日:2016-01-12

    申请号:US12541262

    申请日:2009-08-14

    IPC分类号: H05B6/80 H05B6/64 B01J19/12

    摘要: An instrument and method for high pressure microwave assisted chemistry are disclosed. The method includes the steps of applying microwave radiation to a sample in a sealed vessel while measuring the temperature of the sample and measuring the pressure generated inside the vessel and until the measured pressure reaches a designated set point, opening the vessel to release gases until the pressure inside the vessel reaches a lower designated set point, closing the vessel, and repeating the steps of opening the vessel at designated pressure set points and closing the vessel at designated pressure set points to the sample until the sample reaction reaches a designated high temperature. The designated set points can controllably differ from one another as the reaction proceeds. Microwave energy can be applied continuously or intermittently during the opening and closing steps. The apparatus includes a microwave cavity, a microwave transparent pressure resistant reaction vessel in the cavity, a cap on the reaction vessel, a pressure sensor for measuring pressure in the vessel, a temperature sensor, and means for opening and closing the cap at predetermined pressure set points measured by the pressure sensor to release pressure from the vessel.

    摘要翻译: 公开了一种用于高压微波辅助化学的仪器和方法。 该方法包括以下步骤:在测量样品的温度并测量容器内部产生的压力并直到测量的压力达到指定的设定点,将微波辐射施加到密封容器中的样品中,打开容器释放气体直到 容器内的压力达到下指定设定点,关闭容器,并重复在指定压力设定点打开容器的步骤,并在指定的压力设定点关闭容器至样品,直到样品反应达到指定的高温。 当反应进行时,指定的设定点可以彼此可控地不同。 微波能量可以在打开和关闭步骤期间连续或间歇地施加。 该装置包括微波空腔,空腔中的微波透明耐压反应容器,反应容器上的盖,用于测量容器压力的压力传感器,温度传感器以及用于以预定压力打开和关闭盖的装置 由压力传感器测量的设定点以释放来自容器的压力。

    Automated Protein Analzyer
    45.
    发明申请
    Automated Protein Analzyer 审中-公开
    自动蛋白质分析仪

    公开(公告)号:US20150301061A1

    公开(公告)日:2015-10-22

    申请号:US14753664

    申请日:2015-06-29

    申请人: CEM Corporation

    IPC分类号: G01N33/68

    摘要: A dye binding method for protein analysis is disclosed. The method includes the steps of preparing an initial reference dye solution of unknown concentration from an initial reference dye concentrate and creating an electronic signal based upon the absorbance of the initial reference dye solution. Thereafter, an electronic signal is created based upon the absorbance of a dye filtrate solution prepared from the initial reference dye solution and an initial protein sample. The absorbance signals from the reference dye solution and the dye filtrate solution are sent to a processor that compares the respective absorbances and calculates the protein content of the protein sample based upon the difference between the absorbances. An electronic signal is created based upon the absorbance of a successive dye filtrate solution prepared from the reference dye solution and a successive protein sample, and the absorbance signal from the successive sample dye filtrate solution is sent to the processor to calculate the protein content of the successive sample based upon the difference between the absorbance of the initial reference dye solution and the absorbance of the successive dye filtrate solution.

    摘要翻译: 公开了用于蛋白质分析的染料结合方法。 该方法包括以下步骤:从初始参考染料浓缩物制备未知浓度的初始参考染料溶液,并基于初始参考染料溶液的吸光度产生电子信号。 此后,基于由初始参考染料溶液和初始蛋白质样品制备的染料滤液的吸光度,产生电子信号。 将来自参考染料溶液和染料滤液的吸光度信号送至处理器,该处理器根据吸光度之差来比较各吸光度,并计算蛋白质样品的蛋白质含量。 基于由参考染料溶液和连续蛋白质样品制备的连续染料滤液的吸光度产生电子信号,并将来自连续样品染料滤液的溶液的吸光度信号发送到处理器,以计算蛋白质含量 基于初始参考染料溶液的吸光度与连续的染料滤液的吸光度之间的差异的连续样品。

    Automated protein analyzer
    46.
    发明授权
    Automated protein analyzer 失效
    自动蛋白分析仪

    公开(公告)号:US08663993B2

    公开(公告)日:2014-03-04

    申请号:US12721688

    申请日:2010-03-11

    IPC分类号: G01N33/00

    摘要: A dye binding method for protein analysis is disclosed. The method includes the steps of preparing an initial reference dye solution of unknown concentration from an initial reference dye concentrate and creating an electronic signal based upon the absorbance of the initial reference dye solution. Thereafter, an electronic signal is created based upon the absorbance of a dye filtrate solution prepared from the initial reference dye solution and an initial protein sample. The absorbance signals from the reference dye solution and the dye filtrate solution are sent to a processor that compares the respective absorbances and calculates the protein content of the protein sample based upon the difference between the absorbances. An electronic signal is created based upon the absorbance of a successive dye filtrate solution prepared from the reference dye solution and a successive protein sample, and the absorbance signal from the successive sample dye filtrate solution is sent to the processor to calculate the protein content of the successive sample based upon the difference between the absorbance of the initial reference dye solution and the absorbance of the successive dye filtrate solution.

    摘要翻译: 公开了用于蛋白质分析的染料结合方法。 该方法包括以下步骤:从初始参考染料浓缩物制备未知浓度的初始参考染料溶液,并基于初始参考染料溶液的吸光度产生电子信号。 此后,基于由初始参考染料溶液和初始蛋白质样品制备的染料滤液的吸光度,产生电子信号。 将来自参考染料溶液和染料滤液的吸光度信号送至处理器,该处理器根据吸光度之差来比较各吸光度,并计算蛋白质样品的蛋白质含量。 基于由参考染料溶液和连续蛋白质样品制备的连续染料滤液的吸光度产生电子信号,并将来自连续样品染料滤液的溶液的吸光度信号发送到处理器,以计算蛋白质含量 基于初始参考染料溶液的吸光度与连续的染料滤液的吸光度之间的差异的连续样品。

    Controlled Pressure Release Vessel for Microwave Assisted Chemistry
    47.
    发明申请
    Controlled Pressure Release Vessel for Microwave Assisted Chemistry 有权
    微波辅助化学控制压力释放容器

    公开(公告)号:US20110300036A1

    公开(公告)日:2011-12-08

    申请号:US13205024

    申请日:2011-08-08

    IPC分类号: B01L3/14

    摘要: A controlled release and self-resealing vessel assembly for high pressure, microwave assisted chemistry is disclosed. The vessel assembly includes a cylindrical reaction vessel formed of a material that is substantially transparent to microwave radiation. The vessel has angular walls, one closed end for retaining reactants in the lower portions of the vessel, and one open end that defines a mouth for the vessel. The mouth of the cylinder vessel has a lip that is beveled inwardly from the open end. A microwave-transparent solid floating plug closes the mouth of the reaction vessel; with the plug have a frustum portion for engaging the beveled lip when the plug is placed in the mouth of the vessel. A lid exerts a defined axial force against the plug for sealing the plug in the open end of the cylinder with the frustum engaging the lip.

    摘要翻译: 公开了一种用于高压微波辅助化学的控释和自重密封容器组件。 容器组件包括由对微波辐射基本透明的材料形成的圆柱形反应容器。 容器具有角壁,一个封闭端用于将反应物保持在容器的下部,一个开口端限定容器的口。 气缸容器的口具有从开口端向内倾斜的唇缘。 微波透明固体浮动塞关闭反应容器的口; 当塞子被放置在容器的口中时,塞子具有用于接合斜面唇缘的截头锥体部分。 盖子对塞子施加限定的轴向力,用于将塞子密封在圆柱体的开口端中,其中截头锥体接合唇缘。

    Controlled Pressure Release Vessel for Microwave Assisted Chemistry
    48.
    发明申请
    Controlled Pressure Release Vessel for Microwave Assisted Chemistry 有权
    微波辅助化学控制压力释放容器

    公开(公告)号:US20110293491A1

    公开(公告)日:2011-12-01

    申请号:US13205045

    申请日:2011-08-08

    IPC分类号: B01L3/12 B01L99/00

    摘要: A controlled release and self-resealing pressure-maintaining lid for reaction vessels in microwave assisted chemistry is disclosed. The lid includes a rigid perimeter, a rigid center load-bearing portion, and a flexible portion connecting the rigid perimeter to the center load-bearing portion so that the center portion can move when said flexing portion flexes. The lid can be used in conjunction with a vessel assembly. The vessel assembly can include a microwave-transparent, heat expandable reaction vessel having at least two cylindrical portions axially adjacent one another with one of the portions having a diameter larger than the diameter of the other portion, a transition portion between the two cylindrical portions, a vessel mouth in the larger-diameter portion, and a cylindrical retaining sleeve around the vessel.

    摘要翻译: 公开了一种用于微波辅助化学反应容器的控释和自重密封压力保持盖。 盖子包括刚性周边,刚性中心承载部分和将刚性周边连接到中心承载部分的柔性部分,使得当所述弯曲部分弯曲时中心部分可以移动。 盖可以与容器组件一起使用。 容器组件可以包括微波透明的热膨胀反应容器,其具有至少两个彼此轴向相邻的圆柱形部分,其中一个部分的直径大于另一部分的直径,两个圆柱形部分之间的过渡部分, 大直径部分中的容器口,以及围绕容器的圆柱形保持套。

    Synthesis and Use of Intermetallic Iron Palladium Nanoparticle Compositions
    49.
    发明申请
    Synthesis and Use of Intermetallic Iron Palladium Nanoparticle Compositions 有权
    金属间钯钯纳米粒子组合物的合成与应用

    公开(公告)号:US20110218364A1

    公开(公告)日:2011-09-08

    申请号:US12718319

    申请日:2010-03-05

    摘要: An intermetallic magnetic compound of iron oxide and palladium with a nanometer particle size is disclosed, together with a method of making magnetic nanoparticles that include an intermetallic bond between palladium and iron-oxide. Additionally, a method is disclosed of catalyzing an organic reaction by contacting the organic reagents with an intermetallic magnetic compound of iron oxide and palladium that has nanometer particle size in an amount sufficient to catalyze the organic reaction.

    摘要翻译: 公开了一种具有纳米粒度的氧化铁和钯的金属间磁性化合物,以及制备包括钯和氧化铁之间的金属间键的磁性纳米颗粒的方法。 另外,公开了通过使有机试剂与氧化铁和钯的金属间磁性化合物接触来催化有机反应的方法,该化合物具有足以催化有机反应的量的纳米粒径。