摘要:
A method for accurately determining the particle diameter of gold colloid in a simple manner, and a gold colloid solution with a particle diameter within a desired range are described. A method for estimating the particle diameter distribution width of gold colloid based on the measurement of, in addition to the maximum absorption wavelength, a ratio (AλX/Aλmax) of the absorbance (AλX) at a wavelength differing from the maximum absorption wavelength to the absorbance (Aλmax) at the maximum absorption wavelength of the gold colloid solution, and the gold colloid solution obtained by the method are provided.
摘要翻译:描述了以简单的方式精确测定金胶体的粒径的方法和粒径在期望范围内的金胶体溶液。 基于除了最大吸收波长之外的测量,用于估计金胶体的粒径分布宽度的方法,其比例(λmax / 在金胶体溶液的最大吸收波长处,与最大吸收波长不同于吸光度(λmax max)的波长处的吸光度(Al x X S)和金 提供了通过该方法获得的胶体溶液。
摘要:
A method of immunologically examining a specimen which comprises attaching a cap having a filter impregnated with a labeled antibody enclosed therein to a container body containing a diluted liquid specimen, pouring the diluted liquid specimen from the container into a test device, observing the reaction and thus examining the presence or absence of an analyte in the specimen. This examination method, whereby effects of differences among individual operators can be minimized and the occurrence of a nonspecific reaction can be prevented, is highly excellent in the reproducibility of the examination results and storage stability of a test reagent. A specimen container to be used in the above method to which a cap having a filter impregnated with a labeled antibody enclosed therein is attached. This container is appropriately usable as a member constituting a simplified diagnosis kit.
摘要:
A method of immunologically examining a specimen which comprises attaching a cap having a filter impregnated with a labeled antibody enclosed therein to a container body containing a diluted liquid specimen, pouring the diluted liquid specimen from the container into a test device, observing the reaction and thus examining the presence or absence of an analyte in the specimen. This examination method, whereby effects of differences among individual operators can be minimized and the occurrence of a nonspecific reaction can be prevented, is highly excellent in the reproducibility of the examination results and storage stability of a test reagent. A specimen container to be used in the above method to which a cap having a filter impregnated with a labeled antibody enclosed therein is attached. This container is appropriately usable as a member constituting a simplified diagnosis kit.
摘要:
The present invention provides a novel immunoassay method with high reaction specificity and high sensitivity. The present invention also provides a method for immunoassaying a target antigen utilizing reactivation of an apoenzyme, which includes simultaneously or sequentially adding a test sample to an antibody specific to the target antigen, the target antigen labeled with a coenzyme, an apo-D-amino acid oxidase, a D-amino acid, and a reagent for detecting a hydrogen peroxide produced by the oxidase.
摘要:
The present invention provides a novel immunoassay method with high reaction specificity and high sensitivity. The present invention also provides a method for immunoassaying a target antigen utilizing reactivation of an apoenzyme, which includes simultaneously or sequentially adding a test sample to an antibody specific to the target antigen, the target antigen labeled with a coenzyme, an apo-D-amino acid oxidase, a D-amino acid, and a reagent for detecting a hydrogen peroxide produced by the oxidase.
摘要:
An object of the present invention is to provide a sample nucleic acid for single nucleotide polymorphism detection which is for use in a simple method for quickly detecting a single nucleotide polymorphism, PCR primers for preparation of a sample for single nucleotide polymorphism detection, and a sample for single nucleotide polymorphism detection which is for use in ion exchange chromatography analysis. The present invention provides a sample nucleic acid for single nucleotide polymorphism detection having the following features: (a) a full chain length of 200 bp or less; (b) a sequence (a tag sequence) incompletely complementary to a template DNA at the 5′ or 3′ end; and (c) a 10 bp or less difference in chain length from a sample nucleic acid to be compared with to determine the presence of a single nucleotide polymorphism.
摘要:
The present invention provides a method for quantitatively determining homocysteine in a biological specimen containing homocysteine and cysteine by use of an enzyme which is capable of forming hydrogen sulfide both from homocysteine and from cysteine, which comprises (a) reacting the biological specimen with cysteine dioxygenase in the absence of a reducing agent, (b) subsequently reacting the resultant specimen of (a) with a reducing agent and the enzyme which is capable of forming hydrogen sulfide both from homocysteine and from cysteine, and (c) measuring the concentration of the hydrogen sulfide thus obtained to determine the homocysteine concentration in the biological specimen; and a reagent for such a quantitative determination of homocysteine.
摘要:
The present invention provides a method for quantitatively determining homocysteine in a biological specimen containing homocysteine and cysteine by use of an enzyme which is capable of forming hydrogen sulfide both from homocysteine and from cysteine, which comprises (a) reacting the biological specimen with cysteine dioxygenase in the absence of a reducing agent, (b) subsequently reacting the resultant specimen of (a) with a reducing agent and the enzyme which is capable of forming hydrogen sulfide both from homocysteine and from cysteine, and (c) measuring the concentration of the hydrogen sulfide thus obtained to determine the homocysteine concentration in the biological specimen; and a reagent for such a quantitative determination of homocysteine.
摘要:
The present invention aims to provide a filler for ion exchange chromatography which can sufficiently detect nucleic acid chains that differ in sequence of bases or nucleic acid chains that differ by a single base substitution. The present invention also aims to provide a method for separating and detecting a nucleic acid chain using the filler for ion exchange chromatography. The present invention relates to filler for ion exchange chromatography, comprising base fine particles, each particle having a strong cationic group and a weak cationic group on the surface thereof.