Measurement and calibration method for sample injection volume and mobile phase delivery rate in a ultra micro-scale liquid phase delivery system
    5.
    发明授权
    Measurement and calibration method for sample injection volume and mobile phase delivery rate in a ultra micro-scale liquid phase delivery system 失效
    超微量级液相输送系统中样品注入量和流动相输送速率的测量和校准方法

    公开(公告)号:US07638338B2

    公开(公告)日:2009-12-29

    申请号:US11119215

    申请日:2005-04-29

    IPC分类号: G01N33/00

    摘要: The present invention provides a method for measuring and calibrating sample injection volume or mobile phase delivery rate of any type of micropumps or their integrated systems by using the direct proportion of the total activity (or mass) to the delivery rate (or volume) of a radiochemical nuclide with known activity in a certain time period. Also, the present invention may adjust the range of measurement and calibration from micro-liter (μL) to pico-liter (pL) or from μL/min to pL/min by selecting nuclide species and their concentrations from different liquid calibration radiation sources.

    摘要翻译: 本发明提供了一种用于通过使用总活度(或质量)与总活性(或​​体积)的直接比例相比,来测量和校准任何类型的微型泵或其集成系统的样品进样体积或流动相递送速率的方法, 放射化学核素在一定时间内具有已知活性。 此外,本发明可以通过从不同的液体校准辐射源中选择核素种类及其浓度,将测量和校准的范围从微升(μL)调整到微升(pL)或从muL / min调节到pL / min。

    Technology for the determination of impurities in TRODAT-1 raw material
    6.
    发明申请
    Technology for the determination of impurities in TRODAT-1 raw material 审中-公开
    用于测定TRODAT-1原料杂质的技术

    公开(公告)号:US20070042502A1

    公开(公告)日:2007-02-22

    申请号:US11161888

    申请日:2005-08-21

    IPC分类号: G01N30/02

    摘要: This invention discloses a novel technology for the impurities assay of TRODAT-1 raw material by reverse phase high performance liquid chromatography (RP-HPLC). The method for TRODAT-1 raw material impurities assay of this present invention includes using high performance liquid chromatography (HPLC), liquid chromatography tandem mass spectrometry (LC-MS/MS), HPLC column, preparation of samples, regents and eluent as well as performing parent and product ion analysis by mass spectrometry for the method validation, calculation of chromatographic resolution and raw material impurities. This invention is the first report in the world that proved the existence of oligomers in TRODAT-1 raw material, as well as an analytical method through elaborated validation procedures to quantify the impurities (including the oligomers) in TRODAT-1 raw material.

    摘要翻译: 本发明公开了通过反相高效液相色谱(RP-HPLC)对TRODAT-1原料进行杂质测定的新技术。 本发明的TRODAT-1原料杂质测定方法包括使用高效液相色谱(HPLC),液相色谱串联质谱(LC-MS / MS),HPLC柱,样品制备,试剂和洗脱液以及 通过质谱法进行母体和产品离子分析,进行方法验证,计算色谱分离度和原料杂质。 本发明是世界上第一份证明TRODAT-1原料中低聚物存在的报告,以及通过详细验证程序对TRODAT-1原料中杂质(包括低聚物)进行定量的分析方法。