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. 1977 Sep 15;79(3):541-8.
doi: 10.1016/0009-8981(77)90174-7.

[Determination of the IgA 7 S/IgA 11 S ratio in human bronchial secretion by thin layer gel filtration immunoelectrophoresis (author's transl)]

[Article in French]
A Laine, A Hayem, J Lebas, A Romon

[Determination of the IgA 7 S/IgA 11 S ratio in human bronchial secretion by thin layer gel filtration immunoelectrophoresis (author's transl)]

[Article in French]
A Laine et al. Clin Chim Acta. .

Abstract

After extraction by treatment with Ecteola-cellulose, IgA 11 S and IgA 7 S from human bronchial secretion were first separated by thin-layer gel filtration in Ultrogel AcA 3-4, and then were analyzed by crossed immunoelectrophoresis with an immune serum against alpha chain. Precipitation areas were measured separately. A correlation factor was necessary to express IgA 7 S in terms of IgA 11 S: it was calculated with standard curves made with serum and colostral IgA.

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