System and method for extracting headspace vapor
    1.
    发明申请
    System and method for extracting headspace vapor 有权
    用于提取顶空蒸气的系统和方法

    公开(公告)号:US20060099718A1

    公开(公告)日:2006-05-11

    申请号:US11251310

    申请日:2005-10-14

    IPC分类号: G01N1/10

    摘要: A system and method for extracting headspace vapor is generally disclosed comprising pressurizing a vessel containing headspace vapor with a carrier gas and subsequently venting the sample mixture through an adsorbent trap and out a vent. A flow controller is employed to gradually increase the flow therethrough as the pressure drops as a result of the gradual depletion of headspace vapor in the vessel and, in certain embodiments, the flow controller maintains a constant flow rate. Due to the time saved, in some embodiments, multiple pressurization-venting cycles are implemented to maximize the amount of vapor extracted from the vial. Due to the constant flow rate, in certain embodiments, the pressure decay is monitored and compared to reference values in order to determine whether the sample vessel has a leak or other defect.

    摘要翻译: 通常公开了一种用于提取顶空蒸气的系统和方法,包括用载气加压含有顶空蒸气的容器,随后将样品混合物通过吸附剂阱并排出出口。 采用流量控制器随着压力下降而逐渐增加流量,这是由于容器中顶部空气蒸气逐渐消耗的结果,并且在某些实施例中,流量控制器保持恒定的流速。 由于节省了时间,在一些实施例中,实施多个加压 - 排气循环以最大化从小瓶中提取的蒸气的量。 由于恒定的流速,在某些实施例中,监测压力衰减并与参考值进行比较,以确定样品容器是否具有泄漏或其他缺陷。

    System and method for extracting headspace vapor
    2.
    发明授权
    System and method for extracting headspace vapor 有权
    用于提取顶空蒸气的系统和方法

    公开(公告)号:US07709267B2

    公开(公告)日:2010-05-04

    申请号:US11251310

    申请日:2005-10-14

    摘要: A system and method for extracting headspace vapor is generally disclosed comprising pressurizing a vessel containing headspace vapor with a carrier gas and subsequently venting the sample mixture through an adsorbent trap and out a vent. A flow controller is employed to gradually increase the flow therethrough as the pressure drops as a result of the gradual depletion of headspace vapor in the vessel and, in certain embodiments, the flow controller maintains a constant flow rate. Due to the time saved, in some embodiments, multiple pressurization-venting cycles are implemented to maximize the amount of vapor extracted from the vial. Due to the constant flow rate, in certain embodiments, the pressure decay is monitored and compared to reference values in order to determine whether the sample vessel has a leak or other defect.

    摘要翻译: 通常公开了一种用于提取顶空蒸气的系统和方法,包括用载气加压含有顶空蒸气的容器,随后将样品混合物通过吸附剂阱并排出出口。 采用流量控制器随着压力下降而逐渐增加流量,这是由于容器中顶部空气蒸气逐渐消耗的结果,并且在某些实施例中,流量控制器保持恒定的流速。 由于节省了时间,在一些实施例中,实施多个加压 - 排气循环以最大化从小瓶中提取的蒸气的量。 由于恒定的流速,在某些实施例中,监测压力衰减并与参考值进行比较,以确定样品容器是否具有泄漏或其他缺陷。

    System for introducing standard gas into sample container
    3.
    发明申请
    System for introducing standard gas into sample container 有权
    将标准气体引入样品容器的系统

    公开(公告)号:US20060263901A1

    公开(公告)日:2006-11-23

    申请号:US11403527

    申请日:2006-04-13

    IPC分类号: G01N1/00

    摘要: A method for introducing standard gas into a sample vessel is generally disclosed comprising providing a vessel containing a sample gas and a receptacle with a vessel port, such as sampling needle, pressurizing the vessel with a carrier gas, and introducing a volume of standard gas into the flow path of the carrier gas being used to pressurize the vessel when the vessel port of the receptacle is located within the vessel. In some embodiments, a rotary valve is loaded with the standard gas, and the valve is brought into fluid communication with the flow path of the carrier gas when the vessel port is within the vessel.

    摘要翻译: 通常公开了将标准气体引入样品容器的方法,该方法包括提供容纳样品气体的容器和具有容器端口的容器,例如采样针,用载气对容器加压,并将一定体积的标准气体引入 当容器的容器端口位于容器内时,载气的流动路径用于对容器加压。 在一些实施例中,旋转阀装载有标准气体,并且当容器端口在容器内时阀与载气的流动路径流体连通。