Immunoassay of phospholipid, such as phosphatidyl choline, in fl

Chemistry: analytical and immunological testing – Involving immune complex formed in liquid phase

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436 63, 436 71, 436543, 436547, 436811, 436815, G01N 3354, G01N 3392

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044593627

ABSTRACT:
An immunologic assay for determining the presence of one or more phospholipids in a biological fluid. The method includes adding an ethanolic solution of diacylphosphatidylcholine or alkyltrimethylammonium halide and cholesterol to the biological fluid forming a macromolecular aggregate complex suspension. To the macromolecular aggregate complex solution is then added either an additional quantity of the biological fluid or a buffer reagent. The product of the reaction is then added to antibody molecules to the phospholipid and examined to determine the presence of the phospholipids.
The method is particularly useful in determining the presence of phosphatidylglycerol in a sample of amniotic fluid.

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