Abstract:
To provide a water electrolysis device for the determination of stable isotopic composition of water and a water electrolysis method for stable isotopic composition of water capable of analyzing many samples with ease, with safety and at low cost in a very short time, and rapidly analyzing 17O. The water electrolysis device performing mass spectrometry of hydrogen or oxygen stable isotopic composition includes: a proton exchange membrane which is made of fluorocarbon polymer plated non-electrolytically with platinum, iridium, rhodium or iridium-rhodium alloy, and a cathode and an anode made of porous titanium plated with platinum and sandwiching the proton exchange membrane, in which water is electrolyzed by introducing it into the anode side chamber and supplying a DC current between the anode and the cathode, and oxygen gas generated at the anode and hydrogen gas generated at the cathode are respectively allowed to flow into a isotope ratio mass spectrometer. Also it is provided that a water electrolysis method for stable isotopic composition of water using the water electrolysis device.
Abstract:
To provide a water electrolysis device for the determination of stable isotopic composition of water and a water electrolysis method for stable isotopic composition of water capable of analyzing many samples with ease, with safety and at low cost in a very short time, and rapidly analyzing 17O. The water electrolysis device performing mass spectrometry of hydrogen or oxygen stable isotopic composition includes: a proton exchange membrane which is made of fluorocarbon polymer plated non-electrolytically with platinum, iridium, rhodium or iridium-rhodium alloy, and a cathode and an anode made of porous titanium plated with platinum and sandwiching the proton exchange membrane, in which water is electrolyzed by introducing it into the anode side chamber and supplying a DC current between the anode and the cathode, and oxygen gas generated at the anode and hydrogen gas generated at the cathode are respectively allowed to flow into a isotope ratio mass spectrometer. Also it is provided that a water electrolysis method for stable isotopic composition of water using the water electrolysis device.
Abstract:
A plastic lens includes a plastic substrate, a primer layer made of a polyvinyl acetal resin applied to at least one of the surfaces of the plastic lens substrate, and a hard coat layer on the primer layer. The plastic lens further includes a single-layer or multilayer antireflection coating made of an inorganic material on the hard coat layer.
Abstract:
A semiconductor light-emitting device includes: a light-emitting semiconductor element arranged on a lead frame; a transparent resin mold covering the light-emitting semiconductor element and the lead frame except a terminal portion of the lead frame; and a reflective surface formed on a bent portion of part of the lead frame. The terminal portion of the lead frame has a terminal structure, which can serve as a combination of a top-view type and a side-view type.
Abstract:
A semiconductor light-emitting device includes: a light-emitting semiconductor element arranged on a lead frame; a transparent resin mold covering the light-emitting semiconductor element and the lead frame except a terminal portion of the lead frame; and a reflective surface formed on a bent portion of part of the lead frame. The terminal portion of the lead frame has a terminal structure, which can serve as a combination of a top-view type and a side-view type.