Abstract:
PROBLEM TO BE SOLVED: To provide a chemical analytical system of large capacity easy to be reproduced and allowing mass production. SOLUTION: The chemical analytical system includes the first substrate having a main face, the second substrate joined or attached thereto, a liquid chromatography system integrated thereto, and constituted to receive and treat an analytical liquid to be discharged, and a monolithic electrospray device having an inlet orifice located in a injection side, a nozzle located on a discharge face opposite to the injection side, a channel extended penetrated continuously through a monolithic device, and communicated with the inlet orifice and the nozzle, and an area recessed from the discharge face to surround the nozzle. The monolithic device is integrated on the first substrate, the injection side is constituted to receive the treated liquid from the liquid chromatography system, and the main face is constituted to distribute the liquid by electrospraying the liquid. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a separator and a system for chemical separation of large capacity easy to be reproduced and allowing mass production. SOLUTION: The chemical separator includes a substrate for forming a channel, a plurality of columnar bodies worked of the substrate and extended from the channel, an electric insulation layer provided on a surface of the substrate, and an immobilization phase joined to the columnar bodies reacting with an analyzed sample introduced into the channel for the separation, and the analyzed sample is electrically insulated from the substrate. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A droplet/electrospray device and a liquid chromatography-electrospray system are disclosed. The droplet/electrospray device (100) comprises a substrate (102) defining a channel (104) between an entrance orifice (106) on an injection surface (108) and an exit orifice on an ejection surface (112), a nozzle (110) defined by a portion recessed from the ejection surface (112) surrounding the exit orifice, and an electrode (122) for application of an electric potential to the substrate (102) to optimize and generate droplets or an electrospray (62). A plurality of these electrospray devices (100) can be used in the fonn of an array of miniaturized nozzles. The liquid chromatography-electrospray device (160) comprises a separation substrate (162) defining an introduction channel (164) between an entrance orifice and a reservoir (166) and a separation channel (168) between the reservoir (166) and an exit orifice (170), the separation channel (168) being populated with separation posts (174) perpendicular to the fluid flow.
Abstract:
An electrospray device, a liquid chromatography device and an electrospray-liquid chromatography system are disclosed. The electrospray device comprises a substrate defining a channel between an entrance orifice on an injection surface and an exit orifice on an ejection surface, a nozzle defined by a portion recessed from the ejection surface surrounding the exit orifice, and an electrode for application of an electric potential to the substrate to optimize and generate an electrospray; and, optionally, additional electrode(s) to further modify the electrospray. The liquid chromatography device comprises a separation substrate defining an introduction channel between an entrance orifice and a reservoir and a separation channel between the reservoir and an exit orifice, the separation channel being populated with separation posts perpendicular to the fluid flow; a cover substrate bonded to the separation substrate to enclose the reservoir and the separation channel adjacent the cover substrate; and, optionally, electrode(s) for application of a electric potential to the fluid. The exit orifice of the liquid chromatography device may be homogeneously interfaced with the entrance orifice of the electrospray device to form an integrated single system. An array of multiple systems may be fabricated in a single monolithic chip for rapid sequential fluid processing and generation of electrospray for subsequent analysis, such as by positioning the exit orifices of the electrospray devices near the sampling orifice of a mass spectrometer.
Abstract:
A droplet/electrospray device and a liquid chromatography-electrospray system are disclosed. The droplet/electrospray device (100) comprises a substrate (102) defining a channel (104) between an entrance orifice (106) on an injection surface (108) and an exit orifice on an ejection surface (112), a nozzle (110) defined by a portion recessed from the ejection surface (112) surrounding the exit orifice, and an electrode (122) for application of an electric potential to the substrate (102) to optimize and generate droplets or an electrospray (62). A plurality of these electrospray devices (100) can be used in the form of an array of miniaturized nozzles. The liquid chromatography-electrospray device (160) comprises a separation substrate (162) defining an introduction channel (164) between an entrance orifice and a reservoir (166) and a separation channel (168) between the reservoir (166) and an exit orifice (170), the separation channel (168) being populated with separation posts (174) perpendicular to the fluid flow.