Amine Analysis Using AlexaFluor 488 Succinimidyl Ester and Capillary Electrophoresis with Laser-Induced Fluorescence

Table 1

Table of separation characteristics.

Amine	Amplitude	Area	Elution; (min)	Peak efficiency; (Theor. plates)	Peak effici.; (plates/m)	LOD (nM)
Nonylamine	2.2 × 10^7	3.5 × 10^7	5.5	2.7 × 10^5	550000	N.D.^b
Hexadecylamine	4.5 × 10^7	1.1 × 10^8	7.0	1.7 × 10^5	350000	17
Octadecylamine	4.4 × 10^7	1.1 × 10^8	7.0	1.1 × 10^5	220000	5.7

Elution time.
^bN.D.: not determined.