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 Open

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 zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

This paper describes a new, highly sensitive, rapid method for the determination of low levels of endogenous melatonin, the pineal and retinal hormone, in fish plasma samples. The combination of solid-phase extraction and high-performance liquid chromatography with fluorescence detection significantly improves the separation and increases the sensitivity of the assay. The proposed method may be a useful alternative to previously reported procedures. The assay should be applicable to plasma and tissue samples from other animals, including humans, with only minor modifications.

journal of chromatographic science

Highly Sensitive and Specific Assay of Plasma Melatonin Using High-Performance Liquid Chromatography with Fluorescence Detection Preceded by Solid-Phase Extraction