Table 1.

Serotonin concentrations (nM ± SEM (number of injections)) in dialysate samples from a SERT−/− mouse

Sample	Electrochemical detection	PFET detection
Baseline aCSF perfused at 1 μL/min	3.1 ± 0.2** (3)	1.7 ± 0.4* (3)
Baseline aCSF perfused at 3 μL/min	1.1 ± 0.01 (2)	0.5 ± 0.1 (3)
120 mM K+ aCSF at 3 μL/min	5.5 ± 0.2††,*** (3)	4.2 ± 0.5†,** (3)
Post 120 mM K+ aCSF at 3μL/min	2.3 ± 0.2 (3)	2.2 ± 0.1 (3)

^*p<0.1,

^**p<0.01, and

^***p<0.001 vs. baseline aCSF perfused at 3 μL/min;

^†p<0.05 and

^††p<0.001 vs. post K⁺ aCSF at 3 μL/min. Comparisons are by unpaired two-tailed t-tests.