Chromatographic technique and apparatus
    1.
    发明授权
    Chromatographic technique and apparatus 失效
    色谱技术和设备

    公开(公告)号:US5135549A

    公开(公告)日:1992-08-04

    申请号:US647790

    申请日:1991-01-30

    摘要: To provide a compact, sensitive comprehensive, two-dimensional gas chromatograph, a chromatographic column has first and second sections in series with each other to permit the flow of sample and a carrier through the first section and the second section. The retention time of the second section is less than the band resolution time of the first section. To control the wave fronts between the first and second sections, first and second heaters are positioned to heat and drive off sample collected at the outlet of the first section for collection in the second section and to heat sample collected at the inlet of the second section so that the first heater rapidly drives off sample for collection in the second section and then the second section rapidly drives off sample in a sharp wave front while the first section is accumulating another band for later movement into the second section.

    摘要翻译: 为了提供紧凑,灵敏的综合二维气相色谱仪,色谱柱具有彼此串联的第一和第二部分,以允许样品和载体流过第一部分和第二部分。 第二部分的保持时间小于第一部分的频带分辨率时间。 为了控制第一和第二部分之间的波峰,第一和第二加热器被定位成加热和驱除在第一部分的出口处收集的样品,以在第二部分中收集并加热在第二部分的入口收集的样品 使得第一加热器在第二部分中快速驱离样品以进行收集,然后第二部分快速驱动尖锐波前的样品,同时第一部分积累另一条带以用于稍后移动到第二部分中。

    Apparatus and method of multi-dimensional chemical separation
    2.
    发明授权
    Apparatus and method of multi-dimensional chemical separation 失效
    多维化学分离装置及方法

    公开(公告)号:US5196039A

    公开(公告)日:1993-03-23

    申请号:US846330

    申请日:1992-03-06

    摘要: A practical device and method of performing comprehensive multi-dimensional chemical separation using a first dimension of a two-dimensional chromatograph to generate a chromatogram in a time comparable to or even faster than common practice while the second dimension generates multiple chromatograms each in a time comparable to the fastest prior art chromatography. The transfer of sample portions from the first dimension to the second dimension is by any one of several sample stream modulation techniques. These techniques accumulate portions of sample between the first and the second dimensions transferring them as very sharp concentration pulses analogous to fast injections, without loss of sample and with a substantial improvement in sensitivity.

    摘要翻译: 使用二维色谱仪的第一维进行全面多维化学分离的实用装置和方法,以在与常规实践相当或甚至更快的时间产生色谱图,而第二维度在时间上产生多个色谱图 到最快的现有技术色谱。 样本部分从第一维度传递到第二维度是通过几种样本流调制技术中的任何一种。 这些技术在第一和第二维之间累积样品的部分,将它们作为类似于快速注射的非常尖锐的浓度脉冲转移,而不损失样品并且具有显着的灵敏度提高。

    Method of freshening air
    9.
    发明申请
    Method of freshening air 审中-公开
    清新空气的方法

    公开(公告)号:US20060263236A1

    公开(公告)日:2006-11-23

    申请号:US11492356

    申请日:2006-07-25

    IPC分类号: A61L9/04

    CPC分类号: A61L9/14

    摘要: Air freshener products and methods for freshening air are disclosed. In some embodiments, the air freshening product may include a container for storing an air freshening composition that may contain a perfume composition or may contain a perfume composition in conjunction with a malodor counteractant. The container may contain a propellant such as a compressed gas, and a dispenser; and the air freshening composition. The method of freshening air, in certain embodiments, delivers a consistent perfume release profile. If malodor counteractants are used, the method may also provide a reduction in malodors.

    摘要翻译: 公开了用于清新空气的空气清新剂产品和方法。 在一些实施方案中,空气清新产品可以包括用于储存空气清新组合物的容器,其可以含有香料组合物或可以含有与恶臭反应剂结合的香料组合物。 容器可以包含诸如压缩气体的推进剂和分配器; 和空气清新组成。 在某些实施方案中,清新空气的方法提供了一致的香料释放特性。 如果使用恶臭反应物,则该方法还可以减少恶臭。