High-Throughput Analysis of Lidocaine in Pharmaceutical Formulation by Capillary Zone Electrophoresis Using Multiple Injections in a Single Run

Table 2

Performance comparison for single and multiple injections.

	RSD (%)
	Multiple injections	Single injections
Peak area	0.9–1.5 (1.1–2.4)	0.9 (2.5)
Peak width	1.2–2.2 (0.66–1.6)	1.04 (3.4)
Peak high	1–2.3 (0.8–1.2)	0.77 (1.8)

Values referents to a standard and a sample, outside and inside the brackets, respectively. RSD range relative to four peaks injected (P1, P2, P3, and P4) (). ²Values calculated for lidocaine.