English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the zaia usage as premium feature

ZAIA

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the access of premium content as premium feature

Premium Content

Zendy Tools

Zendy Open

The isolation and quantitation of the surface-active phospholipids of the lipids extracted from mammalian saline lung extracts were studied by the direct application of thin-layer chromatography. The significant recovery of 85% of the phospholipids suggests that the method described can be used for the quantitative analysis of the surface-active material of lung extract and for further complementary analysis such as gas-liquid chromatography. The choline -containing phospholipids such as lecithin and sphingomyelin isolated from lung extracts of different species gave characteristic surface acitivity on a modified Wilhelmy balance. The phosphatidylethanolamine and its analogues did not exhibit surface activity.

Isolation and Assay of Surface-active Phospholipid Components from Lung Extracts by Thin-layer Chromatography