|
Match
|
Document |
Document Title |
|
|
4209614 |
Vitamin B.sub.12 derivative suitable for radiolabeling
Radiolabeled vitamin B 12 derivatives having the formula ##STR1## wherein R is hydrogen or alkyl of 1 to 3 carbon atoms; n is 0, 1, 2, 3 or 4; and the asterisk (*) indicates tagging with a...
|
|
|
4166104 |
Specific binding assay method and test kit employing polystyrene as separating agent
A specific binding assay method and test kit for determining a ligand, particularly an antigen or hapten, in, or the ligand binding capacity of, a liquid medium, particularly a body fluid such as...
|
|
|
4136159 |
Radioassay of folates
Novel folic acid derivatives useful in processes for analysis of biological fluids for folic acid or its metabolites comprising components of the formula: ##STR1## wherein R is hydrogen or...
|
|
|
4135880 |
Folate assay with ion exchange resin bound-free separation
Improved competitive binding serum folate assay in which serum folate bound by folate-selective protein is separated from free serum folate by removal with an anion exchanger, preferably...
|
|
|
4119709 |
Diagnostic test
A diagnostic test is provided based on competitive binding in which a partition coefficient is established for the substance whose concentration is to be determined and for the radioactive labeled...
|
|
|
4115534 |
In vitro diagnostic test
A method for determining the concentration of substances in biological fluids (e.g., drugs, hormones, vitamins and enzymes) is disclosed wherein magnetically responsive, permeable, solid,...
|
|
|
4115065 |
Saturation analysis of folate compound with selenium-75 labeled folate
Folic acid and related compounds are assayed by competitive radio-assay using a selenium - 75 labelled version of folic acid as the competing compound.
|
|
|
4091087 |
Folic acid derivatives and use in radio-assay
Novel folic acid derivatives useful for radioassaying folic acid and its metabolites in biological liquids are prepared from pteroyl-γ-glutamyl-tyrosines by iodination with I 125 or I 131 .
|
|
|
RE29480 |
Method for determining vitamin B.sub.12 and reagent therefor
Method for determining vitamin B 12 in aqueous samples by contacting said sample with radioactivity labelled vitamin B 12 and with particles of water insoluble polymers to which substances...
|
|
|
4039652 |
Column method of immunoassay employing an immobilized binding partner
An improved method is disclosed for determining substances in a fluid sample having a mutual specific binding affinity, such as antigens and antibodies, said method utilizing a device comprising a...
|
|
|
4028465 |
Assay method for serum folate
Serum folate assay procedure by competitive binding in which serum folate is stabilized while being freed from serum folate proteins in the presence of a dithiopolyol, preferably a...
|
|
|
3992152 |
Gold plating test procedure
A process is described for making devices with gold plated surfaces in which a procedure is carried out to determine if visual defects in the gold plated surface have exposed base metal. This...
|
|
|
3988431 |
Radioassay of folates
In the radioassay of folates, the standard is prepared by using folic acid (pteroyl glutamic acid; PGA) as the standard folate at a pH of 9.2 to 9.4. At such pH values, folic acid and...
|
|
|
3981983 |
Rapid, radiochemical-ligand binding assay for methotrexate
A radiochemical ligand binding assay for methotrexate is provided. A binder factor comprising a partially purified dihydrofolic acid reductase preparation is employed. The binder factor is...
|
|
|
3981863 |
Cyanocobalamin derivatives
The present invention is concerned with novel derivatives of cyanocobalamin (vitamin B 12 ), especially of the monocarboxylic acid hydrolysates thereof, by which (1) an antigenic conjugate thereof...
|
|
|
3980764 |
Polymeric competitive protein binding adsorbents for radioassey
Serum protein comprising specific binding proteins such as antibodies, B 12 intrinsic factor, thyroxin binding globulin and the like may be copolymerized with globulin constituents of serum by the...
|
|
|
3972991 |
Radioisotopic assay and binder therefor
There is provided a rapid and less costly radioisotopic assay for measuring the concentration of folate in blood serum. This procedure utilizes 3 H-pteroylmonoglutamate, unlabeled...
|
|
|
3937799 |
Radioassay of vitamin B-12 employing bentonite
Radioassay for vitamin B-12 using the unknown quantity of non-radioactive vitamin B-12 released from serum mixed with the radioactivity of a known quantity of radioactive vitamin B-12 tracer. A...
|
|
|
3721528 |
METHOD AND APPARATUS FOR MEASURING THE AMOUNT OF A COMPONENT IN A BIOLOGICAL FLUID
An improved mode of preparing certain reagents utilized in the measurement of components of biological fluids. In the general mode contemplated, there is added to the biological fluid, which...
|
|
|
3505019 |
METHOD FOR DETERMINING VITAMIN B12 AND REAGENT THEREFOR
|
|
|
3442819 |
MOLECULAR SIEVE COATED PARTICULATE ADSORBENT AND PROCESSES USING SAME
|