摘要:
The invention relates to a method and novel reagents for detecting a ligand in a biological sample. In the method, the sample is combined with (i) an enzyme or an enzyme bound to a first macromolecular compound, (ii) substrate for the enzyme, and (iii) an antibody complex comprising anti-ligand bound to anti-enzyme and a second macromolecular compound bound to either one or both of the anti-ligand and anti-enzyme. The activity of the enzyme varies as a function of the unknown amount of ligand contained in the biological sample.
摘要:
A biologically active composition comprising an immobilized phase comprising an antigen or an antibody, and an immobilized phase comprising an enzyme, an enzyme inhibitor or activator, and a method of measuring antigen or antibody using the same. According to the method of the invention, antigen with antibody can be detected in a simple procedure and high sensitivity.
摘要:
A standard blood filter paper for use in diagnosis of histidinemia, comprising a piece of filter paper, and a blood material infiltrated in the above filter paper containing a known concentration of histidine and at least one salt selected from the group consisting of a dithionite, a disulfite and a bisulfite. The standard blood filter paper can be preserved for a long term at -20.degree. C.
摘要:
A reference blood filter paper for measuring the concentration of methionine in the blood, comprising a piece of blood filter paper, a blood material infiltered in the blood filter paper containing a known concentration of methionine and at least one water-soluble, sulfur-containing antioxidant represented by general formula: ##STR1## where n=1 or 2.
摘要:
Method for determining the activity of the angiotensin-converting enzyme comprising the steps of:(1) mixing a liquid containing the angiotensin-converting enzyme with a reagent consisting essentially of X-hippuryl-L-histidyl-L-leucine, hippuricase, peroxidase, 4-aminoantipyrine and H.sub.2 O.sub.2, and(2) colorimetrically measuring the concentration of quinonimine dye produced in step (1).
摘要翻译:用于测定血管紧张素转换酶的活性的方法,包括以下步骤:(1)将含有血管紧张素转换酶的液体与基本上由N-马尿酰-L-组氨酰-L-亮氨酸,马尿酸,过氧化物酶, 4-氨基安替比林和H 2 O 2,和(2)比色测定步骤(1)中产生的醌亚胺染料的浓度。
摘要:
A quick hardening cement-asphalt composition used as a grout for a ballast-filled track structure comprising(a) 100 parts by weight of a cement composition prepared by adding to portland cement about 10 to 50% by weight of a mixture of a calcium aluminate-series mineral and calcium sulfate in a weight ratio of about 1:0.3 to 1:3; about 0.05 to 10% by weight of an inorganic salt, and about 0.05 to 3% by weight of at least one of an organic carboxylic acid, an organic hydroxycarboxylic acid and a salt thereof, and(b) about 30 to 400 parts by weight of an asphalt emulsion containing about 0.2 to 8% by weight of a polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ether, polyoxyethylene alkyl ester, sorbitan alkyl ester, polyoxyethylene sorbitan alkyl ester or sucrose fatty acid ester nonionic emulsifier and about 0.05 to 2% by weight of a multivalent metal chloride, calculated as the multivalent metal ion.