摘要:
A method for selectively separating and purifying RNA from a mixture solution of nucleic acid containing DNA and RNA, wherein the method comprising the steps of: (1-a) adsorbing nucleic acid; (1-b) washing; (1-c) subjecting to a DNase treatment; (1-d) washing; and (1-e) desorbing the RNA from a nucleic acid-adsorbing porous membrane by a recovering solution, wherein in the step (1-c), a total amount of a DNase solution is 130 μl or less per 1 cm2 of the membrane. And a method for selectively separating and purifying RNA or DNA, which comprises the steps of: (2-a) adsorbing nucleic acid; (2-b) washing by a washing solution; and (2-c) desorbing the nucleic acid from a nucleic acid-adsorbing porous membrane, wherein the washing solution contains a water-soluble organic solvent having a concentration of 50% by weight or less, and does not contain a chaotropic salt.
摘要:
A method for separating and purifying a nucleic acid comprising steps of: (1) adding a lysis solution to a biomaterial to prepare a sample solution containing a nucleic acid, and adding a water-soluble organic solvent or a solution containing a water-soluble organic solvent to the sample solution thereby preparing a sample solution containing the water-soluble organic solvent; (2) contacting the sample solution containing the water-soluble organic solvent with a solid phase thereby adsorbing the nucleic acid on the solid phase; (3) contacting a washing solution with the solid phase thereby washing the solid phase in a state where the nucleic acid is adsorbed on the solid phase; and (4) contacting a recovering solution with the solid phase thereby desorbing the nucleic acid from the solid phase, wherein, in the step (1), the water-soluble organic solvent or the solution containing the water-soluble organic solvent is added separately in at least two batches.
摘要:
A functional group-introduced polyamide solid phase comprising: a polyamide solid phase having an amido group; and an isocyanate compound having an isocyanate group and a functional group, wherein the functional group of the isocyanate compound is introduced onto a surface of the polyamide solid phase by reacting the amido group of the polyamide solid phase with the isocyanate group of the isocyanate compound.
摘要:
A functional group-introduced polyamide solid phase comprising: a polyamide solid phase having an amido group; and an isocyanate compound having an isocyanate group and a functional group, wherein the functional group of the isocyanate compound is introduced onto a surface of the polyamide solid phase by reacting the amido group of the polyamide solid phase with the isocyanate group of the isocyanate compound.
摘要:
It is an object of the present invention to provide a method for measuring low density lipoprotein cholesterol (LDL-C) in a body fluid, which is able to selectively measure low density lipoprotein cholesterol in a body fluid without using a low density lipoprotein cholesterol-selective surfactant having a risk of generating endocrine-disrupting chemicals. The present invention provides a method for measuring low density lipoprotein cholesterol (LDL-C) in a body fluid, which comprises measuring low density lipoprotein cholesterol (LDL-C) by using (a) cholesterol esterase and (b) cholesterol oxidase or cholesterol dehydrogenase, in the presence of a polyoxyethylene-polyoxypropylene copolymer and a polyglyceryl ether.
摘要:
An insulated gate semiconductor device includes a one conductivity type semiconductor layer, a first operation part in a surface of the semiconductor layer and a second operation part in the surface of the semiconductor layer that is smaller in area than the first operation part. A first channel region and a first transistor of an opposite conductivity type are provided in the first operation part and a second channel region and a second transistor of the opposite conductivity type are provided in the second operation part. The first operation part is disposed around the second operation part. Accordingly, design rules for four corner portions can be made uniform and depletion layer spreading in corner portions at a peripheral edge of a channel region of an operation part in application of a reverse voltage is also made approximately uniform. Thus, stable VDSS breakdown voltage characteristics can be obtained.
摘要:
A method for separating and purifying RNA including the steps of passing a sample solution containing a nucleic acid, a washing solution and a recovering solution through a nucleic acid-adsorbing porous membrane to adsorb nucleic acid, adsorbing, washing and recovering, in which the nucleic acid adsorbing porous membrane is a porous membrane capable of adsorbing a nucleic acid by interaction involving substantially no ionic bond, and the sample solution is obtained by a process, comprising the steps of (I) injecting a test sample containing at least one of blood and leukocyte, and further containing an anticoagulant to a container, (II) adding a hemolytic agent to the container to obtain a leukocyte pallet, (III) adding a nucleic acid-solubilizing reagent to the leukocyte pallet to obtain a mixture solution and (IV) adding a water-soluble organic solvent to the mixture solution to obtain the sample solution containing the nucleic acid.
摘要:
An insulated gate semiconductor device includes a one conductivity type semiconductor layer, a first operation part in a surface of the semiconductor layer and a second operation part in the surface of the semiconductor layer that is smaller in area than the first operation part. A first channel region and a first transistor of an opposite conductivity type are provided in the first operation part and a second channel region and a second transistor of the opposite conductivity type are provided in the second operation part. The first operation part is disposed around the second operation part. Accordingly, design rules for four corner portions can be made uniform and depletion layer spreading in corner portions at a peripheral edge of a channel region of an operation part in application of a reverse voltage is also made approximately uniform. Thus, stable VDSS breakdown voltage characteristics can be obtained.
摘要:
An object to be attained by the present invention is to provide a method for conveniently, rapidly, and specifically measuring HDL-C in a specimen by use of inexpensive materials, and to provide a reagent kit for HDL-C detection and a dry analytical element for HDL-C detection. The present invention provides a method for measuring high density lipoprotein cholesterol (HDL-C) in a body fluid test sample, wherein cholesterol esterase derived from Schizophyllum commune or Pseudomonas sp. and cholesterol oxidase derived from Pseudomonas sp. are used to generate hydrogen peroxide from HDL-C, and thereby HDL-C is selectively measured.