Development of a Method for a Sensitive Simultaneous Determination of Dopamine and Paracetamol in Biological Samples and Pharmaceutical Preparations

Table 2

Determination of DA and PAR in human serum and human urine with MCNTs/GCE.

Analyte	Added (μM)		Found^a (μM)		R.S.D. (%)		Recovery (%)
	DA	PAR	DA	PAR	DA	PAR	DA	PAR
Human serum	0.0	0.0	0.0	0.0	—	—	—	—
	10.0	5.0	9.84	4.96	1.4	2.5	98.4	99.2
	20.0	10.0	19.58	9.86	1.7	2.1	97.9	98.6
Human urine	0.0	0.0	0.0	0.0	—	—	—	—
	10.0	5.0	9.76	4.87	1.5	2.7	97.6	97.4
	20.0	10.0	19.47	9.81	1.1	2.3	97.3	98.1

^aAverage of five determinations at optimum conditions.