摘要:
A method and apparatus for carrying out analyses of a gas comprising one or more species by using an ion mobility spectrometer which includes a plurality of electrodes arranged in a chamber divided by an electrifiable grid into a reaction zone provided with an inlet for the gas to be analyzed and a drift zone provided with at least one ion detector. The electrodes generate at least one electric field non-uniform in space along the longitudinal axis of the chamber.
摘要:
A method and apparatus for carrying out analyses of a gas comprising one or more species by using an ion mobility spectrometer which includes a plurality of electrodes arranged in a chamber divided by an electrifiable grid into a reaction zone provided with an inlet for the gas to be analyzed and a drift zone provided with at least one ion detector. The electrodes generate at least one electric field non-uniform in space along the longitudinal axis of the chamber.
摘要:
A method for carrying out analyses of a gas comprising one or more species Si, Sj, . . . , Sn by using of ion mobility spectrometry includes in carrying out two subsequent analyses in different conditions and comparing the results of these two analyses. The different conditions in the two analyses are such as to modify either the residence time of the ions corresponding to the species in the reaction zone or in the drift zone of the ion mobility spectrometer, or, selectively, the concentration of at least one of these ions.
摘要:
A method for carrying out analyses of a gas comprising one or more species Si, Sj, . . . , Sn by using of ion mobility spectrometry includes in carrying out two subsequent analyses in different conditions and comparing the results of these two analyses. The different conditions in the two analyses are such as to modify either the residence time of the ions corresponding to the species in the reaction zone or in the drift zone of the ion mobility spectrometer, or, selectively, the concentration of at least one of these ions.
摘要:
The present invention relates to a DSC type solar cell comprising a pair of electrodes serving as anode and cathode, respectively, between which an electrolytic solution is arranged, wherein the anode comprises a supporting member on which a metal oxide layer comprising powders of titanium dioxide and nanozeolites is arranged. The average diameter of the powders of titanium dioxide is comprised between 3 and 30 nm and the average diameter of at least the ten percent of the added powders of nanozeolites is comprised between 200 and 400 nm. Thanks to this particular configuration of the anode, the DSC cell of the invention allows to improve the conversion efficiency of the light into electric energy.
摘要:
An ion mobility spectrometer is disclosed wherein the ionization element is a corona discharge source (300) consisting of: a first chamber (308) provided with an inlet (309) for a gas to be analyzed and with at least one first opening (311) for communication between the internal space of the first chamber and the reaction zone of the spectrometer; a second chamber (303), contained in the first chamber, provided with an inlet (306) for an ultra-pure gas or a mixture of ultra-pure gases, and with at least one second communication opening (310, 310′) between the first and the second chamber; a pair of electrodes (304, 302′), at least one of which (304) is needle-shaped, arranged in the second chamber, with the pair of electrodes and the second opening arranged in such geometrical relationships that there is no optical path between the zone of the corona discharge and the ion detector of the IMS instrument. The instrument of the invention allows to reproduce the results of a spectrometer equipped with a 63Ni ionization source, while avoiding the problems connected to the transportation and use of radioactive material.
摘要:
A dispensing system is provided for alkali metals, that allows increasing the quantity of alkali metal that can be dispensed, as well as the time during which the system can be used with properties of metal vapors release which are constant over time. The system includes an alkali metal dispenser, the dispenser being a metallic container having one or more first openings and containing a mixture of one or more alkali metal compounds and one or more reducing compounds, preferably in the form of loose powders or pellets of the powders. The system further includes a metallic shield which substantially encloses the container and has one or more second openings facing the first openings.
摘要:
A dispensing system is provided for alkali metals, that allows increasing the quantity of alkali metal that can be dispensed, as well as the time during which the system can be used with properties of metal vapors release which are constant over time. The system includes an alkali metal dispenser, the dispenser being a metallic container having one or more first openings and containing a mixture of one or more alkali metal compounds and one or more reducing compounds, preferably in the form of loose powders or pellets of the powders. The system further includes a metallic shield which substantially encloses the container and has one or more second openings facing the first openings.
摘要:
The present invention relates to a moisture barrier for the protection of internal environment of sensitive devices comprising a homogeneous dispersion of superficially functionalized containing surface modifying organic group belonging to the same chemical class of at least one functional group of the polymeric compound, to a process for the production of said barrier and to sensitive device comprising such barriers.
摘要:
The present invention relates to a method for manufacturing H2O composite sorbers consisting of a polymeric matrix in which hygroscopic inorganic salts are dissolved, to composite sorbers consisting of hygroscopic inorganic salts dissolved in a polymeric matrix and their use for the removal of H2O from the housings of devices sensitive to the presence of H2O.
摘要翻译:本发明涉及一种制备H 2 O复合吸收剂的方法,该方法由溶解有吸湿性无机盐的聚合物基体组成,由溶解在聚合物基质中的吸湿性无机盐组成的复合吸收剂及其从壳体中除去H 2 O 器件对H2O的存在敏感。