摘要:
A method for quantitatively analyzing a biochemical compound such as glucose or cholesterol is performed by bringing the biochemical compound into contact with double stranded DNA fragments which are fixed onto a surface of an electrode at their one terminals and in which electrochemically active threading intercalators are intercalated, in an aqueous medium under application of electric potential to the electrode in the presence of an oxidase capable of oxidizing the biochemical compound and becoming a reduced oxidase, and detecting an electric current flowing between the electrode and another electrode placed in the aqueous medium.
摘要:
A toner printing machine includes an image forming device forming a toner image on a workpiece, and a heating member from which a heat energy is supplied to the toner image to be fixed to the workpiece, wherein the heating energy is supplied to the toner image while preventing a contact heat energy transmission between the heating member and the toner image.
摘要:
A dry analytical element comprising at least one water-permeable reagent layer and a porous spreading layer laminated in this order on a support, wherein at least one layer which is the water-permeable reagent layer, the porous spreading layer or an optional water-permeable layer contains a water-soluble polybasic amino carboxylic acid which is an ampholyte. By applying an analytical element of the invention, an analyte can be measured at a high sensitivity using a small amount of an enzyme, etc., and shelf file can be extended.
摘要:
A medium for electrophoresis comprising an aqueous acrylamide gel formed by crosslinking polymerization of an acrylamide compound and an acrylamide copolymer having at least one specifically selected constitutional repeating unit in the presence of water. The medium may contain a water-soluble polymer and agarose. The medium may contain a modifier such as an anionic surfactant or a compound having at least one carbamoyl group.
摘要:
An element for electrophoresis suitably employable for electrophoresis of biopolymers such as proteins, as well as for the determination of the base sequence of DNA, RNA, their fragments, and their derivatives, which comprises a plastic support, a nonconductive metal oxide layer, and an electrophoresis medium layer comprising an aqueous polyacrylamide gel formed by crosslinking polymerization of an acrylamide compound and a crosslinking agent in the presence of water, which are superposed in this order. The electrophoresis medium layer may contain a water-soluble polymer and agarose. The medium layer may contain a modifier such as an anionic surfactant, formamide or urea.
摘要:
An element for electrophoresis suitably employable for analysis of biopolymers such as proteins, as well as for determination of base sequence of DNA, RNA, their fragments, and their derivatives, which comprises a plastic film, a layer for electrophoresis comprising an aqueous polyacrylamide gel, an adhesive layer containing gelatin and optionally a film-forming polymer and/or fine particles, and a plastic film.
摘要:
An element for electrophoresis comprising the following three-layer structure laminated in the order:(I) a support layer;(II) an adhesive layer comprising a polymer having at least one specifically selected repeating unit;and(III) a medium layer for electrophoresis comprising an aqueous polyacrylamide gel formed by crosslinking polymerization of an acrylamide compound and a crosslinking agent in the presence of water.
摘要:
A silver halide photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and a light-insensitive uppermost layer is disclosed. The light-insensitive uppermost layer has a melting time longer than that of the light-sensitive silver halide emulsion layer and the thickness of the light-insensitive uppermost layer is from 1.3 .mu.m to 5.0 .mu.m. The silver halide photographic light-sensitive material has an improved covering power and results in remarkably low degree of reticulation. Furthermore, when the material is used it results in a reduced amount of scum being formed in the processing solution.