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    • 3. 发明授权
    • Tortuous path chemical preconcentrator
    • 曲折路径化学预浓缩器
    • US07799280B1
    • 2010-09-21
    • US11355480
    • 2006-02-16
    • Ronald P. ManginellPatrick R. LewisDouglas R. AdkinsDavid R. WheelerRobert J. Simonson
    • Ronald P. ManginellPatrick R. LewisDouglas R. AdkinsDavid R. WheelerRobert J. Simonson
    • B01L99/00
    • B01L3/502753B01L2200/0668B01L2300/0883B01L2300/16B01L2400/086G01N1/405Y10T436/2575
    • A non-planar, tortuous path chemical preconcentrator has a high internal surface area having a heatable sorptive coating that can be used to selectively collect and concentrate one or more chemical species of interest from a fluid stream that can be rapidly released as a concentrated plug into an analytical or microanalytical chain for separation and detection. The non-planar chemical preconcentrator comprises a sorptive support structure having a tortuous flow path. The tortuosity provides repeated twists, turns, and bends to the flow, thereby increasing the interfacial contact between sample fluid stream and the sorptive material. The tortuous path also provides more opportunities for desorption and readsorption of volatile species. Further, the thermal efficiency of the tortuous path chemical preconcentrator is comparable or superior to the prior non-planar chemical preconcentrator. Finally, the tortuosity can be varied in different directions to optimize flow rates during the adsorption and desorption phases of operation of the preconcentrator.
    • 非平面曲折路径化学预浓缩器具有高内表面积,其具有可加热吸附涂层,其可用于选择性地收集和浓缩一种或多种感兴趣的化学物质,所述流体物流可作为集中塞快速释放 用于分离和检测的分析或微量分析链。 非平面化学预浓缩器包括具有曲折流动路径的吸附支撑结构。 弯曲度为流动提供了反复的扭转,弯曲和弯曲,从而增加了样品流体流与吸附材料之间的界面接触。 曲折的路径还为挥发物种的解吸和吸收提供了更多的机会。 此外,曲折路径化学预浓缩器的热效率相当于或优于现有的非平面化学预浓缩器。 最后,曲折度可以在不同的方向上变化,以优化预浓缩器的吸附和解吸阶段的流速。
    • 5. 发明授权
    • Microfabricated fuel heating value monitoring device
    • 微型燃油发热值监测装置
    • US07708943B1
    • 2010-05-04
    • US11355661
    • 2006-02-16
    • Alex L. RobinsonRonald P. ManginellMatthew W. Moorman
    • Alex L. RobinsonRonald P. ManginellMatthew W. Moorman
    • G01N25/20
    • G01N33/225
    • A microfabricated fuel heating value monitoring device comprises a microfabricated gas chromatography column in combination with a catalytic microcalorimeter. The microcalorimeter can comprise a reference thermal conductivity sensor to provide diagnostics and surety. Using microfabrication techniques, the device can be manufactured in production quantities at a low per-unit cost. The microfabricated fuel heating value monitoring device enables continuous calorimetric determination of the heating value of natural gas with a 1 minute analysis time and 1.5 minute cycle time using air as a carrier gas. This device has applications in remote natural gas mining stations, pipeline switching and metering stations, turbine generators, and other industrial user sites. For gas pipelines, the device can improve gas quality during transfer and blending, and provide accurate financial accounting. For industrial end users, the device can provide continuous feedback of physical gas properties to improve combustion efficiency during use.
    • 微加料燃料加热值监测装置包括与催化微量热计相结合的微细气相色谱柱。 微量热计可以包括参考热导率传感器以提供诊断和保证。 使用微细加工技术,该设备可以以低单位成本生产。 微加料燃料加热值监视装置能够使用空气作为载气,以1分钟分析时间和1.5分钟循环时间连续测定天然气的发热值。 该设备适用于偏远天然气采矿站,管道交换和计量站,涡轮发电机等工业用户场所。 对于天然气管道,该设备可以在转移和混合过程中提高气体质量,并提供准确的财务会计。 对于工业终端用户,该设备可以提供物理气体性能的连续反馈,以提高使用过程中的燃烧效率。
    • 6. 发明授权
    • Micropyrolyzer for chemical analysis of liquid and solid samples
    • 用于液体和固体样品的化学分析的微溶胶
    • US07078237B1
    • 2006-07-18
    • US10035537
    • 2001-10-23
    • Curtis D. MowryCatherine H. MorganRonald P. ManginellGregory C. Frye-Mason
    • Curtis D. MowryCatherine H. MorganRonald P. ManginellGregory C. Frye-Mason
    • G01N25/20
    • G01N31/12
    • A micropyrolyzer has applications to pyrolysis, heated chemistry, and thermal desorption from liquid or solid samples. The micropyrolyzer can be fabricated from semiconductor materials and metals using standard integrated circuit technologies. The micropyrolyzer enables very small volume samples of less than 3 microliters and high sample heating rates of greater than 20° C. per millisecond. A portable analyzer for the field analysis of liquid and solid samples can be realized when the micropyrolyzer is combined with a chemical preconcentrator, chemical separator, and chemical detector. Such a portable analyzer can be used in a variety of government and industrial applications, such as non-proliferation monitoring, chemical and biological warfare detection, industrial process control, water and air quality monitoring, and industrial hygiene.
    • 微型搅拌器具有从液体或固体样品中进行热解,加热化学和热解吸的应用。 微型硅胶可以使用标准集成电路技术由半导体材料和金属制成。 微型分选仪可实现小于3微升的非常小体积的样品和大于20℃/毫秒的高样品加热速率。 当微型分解器与化学预浓缩器,化学分离器和化学检测器组合时,可以实现液体和固体样品的现场分析的便携式分析仪。 这种便携式分析仪可用于各种政府和工业应用,如不扩散监测,化学和生物战争检测,工业过程控制,水和空气质量监测以及工业卫生。
    • 9. 发明授权
    • Formation of microchannels from low-temperature plasma-deposited silicon
oxynitride
    • 从低温等离子体沉积的氮氧化硅形成微通道
    • US6096656A
    • 2000-08-01
    • US339715
    • 1999-06-24
    • Carolyn M. MatzkeCarol I. H. AshbyMonica M. BridgesRonald P. Manginell
    • Carolyn M. MatzkeCarol I. H. AshbyMonica M. BridgesRonald P. Manginell
    • B81C1/00H01L21/00
    • B81C1/00071B81C1/00436G01N27/44791G01N30/6095B81B2201/058B81C2201/0109
    • A process for forming one or more fluid microchannels on a substrate is disclosed that is compatible with the formation of integrated circuitry on the substrate. The microchannels can be formed below an upper surface of the substrate, above the upper surface, or both. The microchannels are formed by depositing a covering layer of silicon oxynitride over a mold formed of a sacrificial material such as photoresist which can later be removed. The silicon oxynitride is deposited at a low temperature (.ltoreq.100.degree. C.) and preferably near room temperature using a high-density plasma (e.g. an electron-cyclotron resonance plasma or an inductively-coupled plasma). In some embodiments of the present invention, the microchannels can be completely lined with silicon oxynitride to present a uniform material composition to a fluid therein. The present invention has applications for forming microchannels for use in chromatography and electrophoresis. Additionally, the microchannels can be used for electrokinetic pumping, or for localized or global substrate cooling.
    • 公开了一种在衬底上形成一个或多个流体微通道的方法,其与在衬底上形成集成电路相兼容。 微通道可以形成在衬底的上表面下方,上表面上方或两者。 通过在由牺牲材料(例如光致抗蚀剂)形成的模具上沉积氮氧化硅覆盖层而形成微通道,后者可以被去除。 使用高密度等离子体(例如电子回旋共振等离子体或电感耦合等离子体)在低温(<100℃),优选在室温附近沉积氧氮化硅。 在本发明的一些实施例中,微通道可以用氮氧化硅完全衬里,以向其中的流体呈现均匀的材料组成。 本发明具有形成用于色谱和电泳的微通道的应用。 此外,微通道可用于电动泵送,也可用于局部或全局衬底冷却。