Method and apparatus for sample injecting in gas chromatography
    1.
    发明授权
    Method and apparatus for sample injecting in gas chromatography 有权
    气相色谱法样品注入的方法和装置

    公开(公告)号:US06719826B2

    公开(公告)日:2004-04-13

    申请号:US10194980

    申请日:2002-07-15

    IPC分类号: B01D1508

    摘要: A method and an apparatus for sample injection in gas chromatography increases the injecting volume of a sample, and can analyze any of high-boiling-point compounds, low-compounds boiling-point compounds, and compounds decomposed by heat. A sample is injected into a vaporizing chamber 6 having curved or crooked outer wall 6G and sample path S and formed of continuous inner walls 6H; the sample is temporarily held in the vaporizing chamber 6; then an objective compound is vaporized, and introduced into a separation column 17.

    摘要翻译: 气相色谱仪中样品注入的方法和装置增加了样品的注入体积,并且可以分析高沸点化合物,低沸点化合物和热分解化合物中的任何一种。 将样品注入具有弯曲或弯曲的外壁6G和样品路径S并由连续内壁6H形成的蒸发室6; 将样品暂时保持在蒸发室6中; 然后将目标化合物蒸发,并引入分离塔17中。

    Method of Analyzing Organic Chemical Substances and Apparatus for Analysis
    7.
    发明申请
    Method of Analyzing Organic Chemical Substances and Apparatus for Analysis 有权
    分析有机化学物质的方法和分析仪器

    公开(公告)号:US20080209983A1

    公开(公告)日:2008-09-04

    申请号:US10581317

    申请日:2004-12-03

    IPC分类号: G01N1/28

    摘要: A combination of a liquid chromatograph and a gas chromatograph was a possible measure for improving precision in analyzing organic chemical substances. However, because elutes from liquid chromatoghaphies contain water and a highly polar solvent, injection thereof into a gas chromatograph has been impossible. Consequently, to develop an analytical method which realizes that combination and an apparatus thereof has been a subject. The method of the quantitative analysis comprises subjecting a sample for analysis prepared beforehand by extracting organic chemical substances from an assay sample to fractionation by a liquid chromatograph, continuously adsorbing a fractionated elute containing a substance to be determined onto a solid-phase cartridge while conducting the fractionation, eluting this substance, which has been adsorbed on the solid-phase cartridge, with an eluent, and transferring the elute to a storage chamber of a gas chromatograph.

    摘要翻译: 液相色谱仪和气相色谱仪的组合是提高分析有机化学物质精度的可行措施。 然而,因为来自液体色谱法的洗脱液含有水和高极性溶剂,所以注入气相色谱仪是不可能的。 因此,开发一种实现该组合的分析方法及其装置已经成为一个主题。 定量分析方法包括:将样品预先分析,通过从测定样品中提取有机化学物质进行分析,通过液相色谱仪进行分级,将含有待测物质的分馏洗脱液连续吸附到固相盒上,同时进行 分离,用吸附在固相柱上的该物质洗脱,并将洗脱液转移到气相色谱仪的储存室中。

    Analytical Method for Organic Compounds Utilizing Spe Cartridges and Apparatus Therefor
    8.
    发明申请
    Analytical Method for Organic Compounds Utilizing Spe Cartridges and Apparatus Therefor 审中-公开
    有机化合物利用香烟的分析方法及其设备

    公开(公告)号:US20080179252A1

    公开(公告)日:2008-07-31

    申请号:US11661264

    申请日:2005-06-14

    IPC分类号: B01D15/08

    摘要: This invention relates to an analytical method and an apparatus utilizing a SPE cartridge, which can realize enhanced accuracy and workability in the analysis of trace substances, such as residual pesticides, can clean the inside of piping, needle valves etc, can eliminate the influence on the analysis and can conduct these operations automatically. In the analytical method and apparatus utilizing a SPE cartridge, analytes previously adsorbed to a SPE cartridge is eluted with a solvent from a liquid feed pump. The eluate was injected into a storage chamber in a gas chromatograph through a needle inserted into an injection port in the storage chamber. The needle is pulled up from the injection port, and the inside of the needle is washed with a solvent fed from the liquid feed pump. The wash liquid is discarded, and the analysis of organic compounds as analytes in an subject sample is carried out.

    摘要翻译: 本发明涉及一种利用SPE滤芯的分析方法和装置,其可以在残留农药等痕量物质的分析中实现更高的精度和可操作性,可以清洗管道内部,针阀等,可以消除对 分析并自动进行这些操作。 在使用SPE柱的分析方法和装置中,先前被吸附到SPE柱的分析物用来自液体进料泵的溶剂洗脱。 将洗脱液通过插入储存室中的注入口中的针注入气相色谱仪的储存室中。 针从注射口拉起,针头内部用从液体供给泵供给的溶剂洗涤。 将洗涤液弃去,对被检样品中的有机化合物作为分析物进行分析。

    Stationary Phase Extraction Cartridge
    9.
    发明申请
    Stationary Phase Extraction Cartridge 审中-公开
    固定相萃取筒

    公开(公告)号:US20070240777A1

    公开(公告)日:2007-10-18

    申请号:US10594546

    申请日:2005-03-24

    IPC分类号: B05B1/22

    摘要: An inflow side frit (3), a stationary phase filler (4), and an outflow side frit (5) are installed in a cylindrical cartridge body (1A) from the upper side, a stopper part (1f) supporting the outflow side frit is formed at the inner surface bottom end of the cartridge body (1A), and a fitting part capable of holding the inserted state of the lower end of the other cartridge body (1A) inserted from the upper end of the cartridge body (1A) to a specified position is formed on the cartridge body (1A). The fitting part comprises an inside tapered surface (1g) formed on the inner surface of the cartridge body (1A) on the inserted side and having a diameter increased toward the upper side and an outside tapered surface formed on the outer surface of the cartridge body on the insert side and having a diameter increased toward the upper side.

    摘要翻译: 流入侧玻璃料(3),固定相填料(4)和流出侧玻璃料(5)从上侧安装在圆筒形筒体(1A)中,支撑流出物的止动部分(1f) 在盒主体(1A)的内表面底端形成侧玻璃料,并且能够保持从盒的上端插入的另一个盒体(1A)的下端的插入状态的装配部 主体(1A)到指定位置形成在盒体(1A)上。 装配部分包括形成在插入侧的盒体(1A)的内表面上的内锥形表面(1g),并且具有朝向上侧增加的直径和形成在该外壳的外表面上的外锥形表面 盒体在插入物侧上并且具有朝向上侧增加的直径。

    Method of analyzing organic chemical substances and apparatus for analysis
    10.
    发明授权
    Method of analyzing organic chemical substances and apparatus for analysis 有权
    有机化学物质分析方法和分析仪器

    公开(公告)号:US08042379B2

    公开(公告)日:2011-10-25

    申请号:US10581317

    申请日:2004-12-03

    IPC分类号: G01N1/28 G01N30/84

    摘要: A combination of a liquid chromatograph and a gas chromatograph was a possible measure for improving precision in analyzing organic chemical substances. However, because elutes from liquid chromatoghaphies contain water and a highly polar solvent, injection thereof into a gas chromatograph has been impossible. Consequently, to develop an analytical method which realizes that combination and an apparatus thereof has been a subject. The method of the quantitative analysis comprises subjecting a sample for analysis prepared beforehand by extracting organic chemical substances from an assay sample to fractionation by a liquid chromatograph, continuously adsorbing a fractionated elute containing a substance to be determined onto a solid-phase cartridge while conducting the fractionation, eluting this substance, which has been adsorbed on the solid-phase cartridge, with an eluent, and transferring the elute to a storage chamber of a gas chromatograph.

    摘要翻译: 液相色谱仪和气相色谱仪的组合是提高分析有机化学物质精度的可行措施。 然而,因为来自液体色谱法的洗脱液含有水和高极性溶剂,所以注入气相色谱仪是不可能的。 因此,开发一种实现该组合的分析方法及其装置已经成为一个主题。 定量分析方法包括:将样品预先分析,通过从测定样品中提取有机化学物质进行分析,通过液相色谱仪进行分级,将含有待测物质的分馏洗脱液连续吸附到固相盒上,同时进行 分离,用吸附在固相柱上的该物质洗脱,并将洗脱液转移到气相色谱仪的储存室中。