Measured in concentration in blood plasma, it may thus be expressed as:
For instance, para aminohippuric acid (PAH) is almost completely excreted in the final urine, and thus almost none is found in the venous return (Pv ~0). Therefore, the extraction ration of PAH ~1. This is why PAH is used in PAH clearance to estimate renal plasma flow.
Optimization of Supercritical CO2 Extraction and Characterization of Antifungal Activity of Essential Oils in Cuminum Cyminum L
Nov 01, 2013; AbstractSupercritical CO^sub 2^ extraction of essential oils from Cuminum cyminum seeds was optimized by the adjustment of...