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1. 发明授权

US5032722A MS-MS time-of-flight mass spectrometer 失效
标题翻译： MS-MS飞行时间质谱仪
公开(公告)号：US5032722A
公开(公告)日：1991-07-16
申请号：US541140
申请日：1990-06-20
申请人： Ulrich Boesl , Edward W. Schlag , Klaus Walter , Rainer Weinkauf
发明人： Ulrich Boesl , Edward W. Schlag , Klaus Walter , Rainer Weinkauf
IPC分类号： H01J49/40
CPC分类号： H01J49/004 , H01J49/40
摘要： In an MS-MS time-of-flight mass spectrometer, a space focus of the ion source is defined by correction of the second order. If the geometrical and electric values of the ion source are suitably selected, the space focus may be such as to permit very good primary mass resolution when suitable secondary interaction methods are used. The secondary interaction at the space focus may be effected (a) by a focused, pulsed laser ray or other pulsed interaction methods that can be focused. (b) by a wire mesh consisting of very fine "line combs" engaging each other, to which voltage pulses can be applied, (c) by a combination of a) and/or b) with an electrostatically high, primary, fieldless drift path. The MS-MS time-of-flight mass spectrometer is operated using a reflector comprising a movable reflector end plate with adjustable potential, which enables primary ions to be eliminated from the spectrum without any loss in mass resolution. By tuning the reflector fields in a suitable manner, and suitable selection of an observation window in the time-of-flight spectrum, it is possible to measure a secondary mass spectrum generated at the space focus.
摘要翻译：在MS-MS飞行时间质谱仪中，离子源的空间焦点通过二阶校正来定义。如果适当地选择离子源的几何和电值，则当使用适当的二次相互作用方法时，空间焦点可以是允许非常好的初级质量分辨率。可以通过聚焦的脉冲激光或可以聚焦的其它脉冲相互作用方法来实现空间聚焦的二次相互作用（a）。（b）通过由相互接合的非常精细的“线梳”组成的丝网，可以施加电压脉冲，（c）通过a）和/或b）的组合与静电高，初级无场漂移路径。 MS-MS飞行时间质谱仪使用包括具有可调节电位的可移动反射器端板的反射器来操作，这使得能够从光谱中消除一次离子而没有质量分辨率的任何损失。通过以合适的方式调整反射器场，并且在飞行时间频谱中适当地选择观察窗，可以测量在空间焦点处产生的次质量谱。

2. 发明授权

US4433241A Process and apparatus for determining molecule spectra 失效
标题翻译：用于确定分子光谱的方法和装置
公开(公告)号：US4433241A
公开(公告)日：1984-02-21
申请号：US349322
申请日：1982-02-16
申请人： Ulrich Boesl , Hans J. Neusser , Edward W. Schlag
发明人： Ulrich Boesl , Hans J. Neusser , Edward W. Schlag
IPC分类号： H01J49/10 , B01D59/44
CPC分类号： H01J49/162
摘要： A process for determining molecular spectra in unseparated mixtures, in particular unseparated isotopic mixtures, which comprises allowing said mixture to successively flow through a photoreactor which is irradiated by an adjustable-wavelength laser and then through a mass spectrometer wherein the concentration of particles of specified mass is determined by variation of the wavelength of the laser or variation of the mass setting of the mass spectrometer in such a manner that a two-dimensional spectrum results having the parameters of wavelength and mass.
摘要翻译：确定未分离的混合物，特别是未分离的同位素混合物中的分子光谱的方法，其包括使所述混合物连续流过被可调波长激光辐射的光反应器，然后通过质谱仪，其中指定质量的颗粒的浓度由激光波长的变化或质谱仪的质量设定的变化决定，使得具有波长和质量参数的二维光谱。

3. 发明授权

US5062935A Method of vaporizing a sample substance 失效
标题翻译：蒸发样品物质的方法
公开(公告)号：US5062935A
公开(公告)日：1991-11-05
申请号：US326763
申请日：1989-03-21
申请人： Edward W. Schlag , Josef Lindner , Ronald C. Beavis , Jurgen Grotemeyer
发明人： Edward W. Schlag , Josef Lindner , Ronald C. Beavis , Jurgen Grotemeyer
IPC分类号： H05H3/02
CPC分类号： H05H3/02
摘要： When vaporizing a sample substance consisting of big molecules, in particular for the purpose of mass-spectroscopic examinations, the energy introduced for the vaporization process may lead to thermolytic decomposition of the sample substance. In order to prevent such decomposition, the invention proposes that the sample substance be mixed, prior to its irradiation, with a matrix material which is easily decomposed under the influence of the laser beam pulses. The matrix may consist of a material which absorbs the radiation and which is easily decomposed thermolytically, or else of a material which is permeable to laser radiation, but mixed with a metal powder. When the mixture is exposed to laser beam pulses, the instable matrix material will decompose first whereby the embedded molecules of the sample substance are set free. It is possible in this manner to prevent, practically completely, the molecules of the sample substance from being destructed. Suitable compounds for use as matrix material are, in particular, sugar, cellulose and NH.sub.4 NO.sub.3 as well as polyethylene, with an admixture of gold or silver powder.
摘要翻译：当蒸发由大分子组成的样品物质，特别是为了进行质谱分析时，引入蒸发过程的能量可能导致样品物质的热分解。为了防止这种分解，本发明提出将样品物质在照射之前与在激光束脉冲的影响下容易分解的基质材料混合。基质可以由吸收辐射并易于热分解的材料构成，也可以由能够通过激光辐射而与金属粉末混合的材料形成。当混合物暴露于激光束脉冲时，不稳定的基体材料将首先分解，从而使样品物质的嵌入分子自由。以这种方式可以防止样品物质的分子几乎完全被破坏。用作基质材料的合适的化合物特别是糖，纤维素和NH 4 NO 3以及具有金或银粉末的混合物的聚乙烯。

4. 发明授权

US4731532A Time of flight mass spectrometer using an ion reflector 失效
标题翻译：飞行时间质谱仪使用离子反射器
公开(公告)号：US4731532A
公开(公告)日：1988-03-15
申请号：US875476
申请日：1986-06-18
申请人： Rudiger Frey , Edward W. Schlag
发明人： Rudiger Frey , Edward W. Schlag
IPC分类号： H01J49/40 , B01D59/44
CPC分类号： H01J49/405
摘要： The ion reflector of the time of flight mass spectrometer comprises between the decelerating electrodes (27, 28) defining the decelerating field and the reflector electrode (29) an additional focusing electrode (30). Just as the focusing electrode (30), the deceleration electrodes (28, 28) are also preferably designed as grid-less diaphragm rings. Further, the front decelerating electrode arranged at the input of the ion reflector has preferably a larger aperture diameter than the rear decelerating electrode (28). The arrangement of the decelerating and focusing electrodes and the potentials applied to them are selected to ensure that an inhomogenous electric field is generated in the area of these electrodes which has the effect of a lens and which in conjunction with the following homogenous field which extends to the reflector electrode (29) ensures not only focusing in time, but also perfect geometrical focusing of the ion beam upon the detector.
摘要翻译：飞行时间质谱仪的离子反射器包括限定减速场的减速电极（27,28）和反射器电极（29）之间的另外的聚焦电极（30）。正如聚焦电极（30）一样，减速电极（28,28）也优选设计成无栅隔膜环。此外，布置在离子反射器的输入处的前减速电极优选地具有比后减速电极（28）更大的孔径。选择减速和聚焦电极的布置以及施加到其上的电位以确保在这些电极的区域中产生不均匀的电场，这具有透镜的作用，并且与以下均匀场相结合，延伸到反射器电极（29）不仅确保了时间上的聚焦，而且确保离子束在检测器上的完美几何聚焦。

5. 发明授权

US4570066A Method and device for producing molecular beams 失效
标题翻译：用于生产分子束的方法和装置
公开(公告)号：US4570066A
公开(公告)日：1986-02-11
申请号：US598329
申请日：1984-03-05
申请人： Edward W. Schlag , Hanns von Weyssenhoff , Heinrich Selzle
发明人： Edward W. Schlag , Hanns von Weyssenhoff , Heinrich Selzle
IPC分类号： G01N21/64 , H05H3/02
CPC分类号： H05H3/02
摘要： The present invention relates to a method and apparatus for producing molecular beams which contain large, thermally unstable molecules. The molecules are transformed from the nongaseous to the gaseous phase with the application of energy, and are mixed with a carrier gas and then adiabatically cooled with the carrier gas through an expansion process. Thus, the large molecules are transformed from the nongaseous to gaseous phase at such a temperature that their vaporization rate is larger than their disintegration rate. The energy for transforming the large, thermally unstable molecules from the nonvolatile to the gaseous phase is generated so fast that the large, thermally unstable molecules are transformed from the nonvolatile to the gaseous form at a temperature lying above the disintegration temperature. At this temperature, the vaporization rate is larger than the disintegration rate whereby the molecules are directly broken down in an expanding carrier gas beam whose temperature is substantially less than the vaporization or correspondingly the disintegration temperature of the large, thermally unstable molecules. The molecules are broken down into a gaseous form in those areas of the carrier gas beam in which the beam begins to expand (FIG. 3).
摘要翻译： PCT No.PCT / DE83 / 00118 Sec。 371日期1984年3月5日 102（e）1984年3月5日PCT PCT日期：1983年6月30日PCT公布。公开号WO84 / 00276 日本1984年1月19日。本发明涉及含有大的热不稳定分子的分子束的制造方法和装置。通过施加能量将分子从非气态转化为气相，并与载气混合，然后通过膨胀过程与载气绝热冷却。因此，大分子在气化速率大于其崩解速率的温度下从非气态转变为气相。将大的热不稳定分子从非挥发物转化为气相的能量产生得如此之快，使得大的热不稳定分子在高于崩解温度的温度下从非挥发分转变成气态。在这个温度下，蒸发速率大于崩解速率，由此分子在温度基本上小于大的热不稳定分子的蒸发或相应的崩解温度的膨胀载气束中直接分解。在波束开始膨胀的载气束的那些区域中，分子被分解为气态（图3）。

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