An Optimized High Throughput Clean-Up Method Using Mixed-Mode SPE Plate for the Analysis of Free Arachidonic Acid in Plasma by LC-MS/MS

Table 3

Free arachidonic acid in some human plasma samples.

Sample number	1	2	3	4	5	6	7	8
Concentration of arachidonic acid (μg/mL)	1.51	0.83	1.15	0.98	1.83	2.11	2.18	1.82