| DID | dead of intercurrent disease; double immunodiffusion |
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| DRID | double radial immunodiffusion; double radioisotope derivative |
| FID | flame ionization detector; free induction decay; fungal immunodiffusion |
| ID | identification; iditol dehydrogenase; immunodeficiency; immunodiffusion; immunoglobulin deficiency; ... |
| IDP | immunodiffusion procedure; inflammatory demyelinating neuropathy; initial dose period; inosine dipho... |
| AGID | Agar Gel Immunodiffusion |
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| SRID | Single Radial Immunodiffusion |
| SRD | Single radial immunodiffusion |
| immunodiffusion | <technique> The classical technique used to detect the presence of antibodies and determine their specificity by visualisation of precipitin lines. A technique for analysing antigen and antibody mixtures by watching them as they diffuse toward each other within a support medium (usually a gel). The precipitin lines (precipitated antigen-antibody complexes) form where the binding concentrations of antigen and antibody are equivalent. Patient serum diffuses from one well through the gel and reacts with a known specific antigen (or antibody) which diffuses through the gel from a second well. Immunodiffusion is strictly qualitative, although the density of the precipitin line and the distance of the line from the sample well may give some indication of the antibody concentration. Synonym: double diffusion, Ouchterlony technique. (01 Dec 1998) |
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| radial immunodiffusion | <technique> A quantitative variation of immunodiffusion in which the agar gel contains evenly distributed antigen (or antibody) and its counterpart from the test sample diffuses into the gel from a single well resulting in a circular precipitin line around the sample well. The diameter of the precipitin ring is proportional to the concentration of the antibody (or antigen) present in the test sample. By comparing the diameter of the test specimen precipitin ring to known standards, a relatively insensitive estimation of the concentration of specific antibody or antigen can be achieved. (01 Dec 1998) |
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| single immunodiffusion | See: gel diffusion precipitin tests in one dimension, gel diffusion precipitin tests in two dimensions. (05 Mar 2000) |
| double immunodiffusion | See: gel diffusion precipitin tests in two dimensions. (05 Mar 2000) |
Synonyms : Diffusion Test, Gel, Diffusion Tests, Gel, Gel Diffusion Test, Immunodiffusions, Test, Gel Diffusion, Tests, Gel Diffusion
| immunodiffusion |
Another name for the gel diffusion technique.
Ãâó: www.sonoma.edu/users/t/thatcher/biol480/voc2.htm
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