Determination of Picogram Levels of Roxithromycin in Pharmaceutical, Human Serum, and Urine by Flow-Injection Chemiluminescence

Table 2

Results of determination for ROX in pharmaceutical (labelled amount 75 mg tab⁻¹).

Sample no.	Added (pg mL^−1)	Found (pg mL^−1)	RSD (%)	Recovery (%)	ROX; (mg tab^−1)
1	0	7.1	2.7	110.0	72.5
	3.0	10.4	3.0
2	0	7.2	2.4	97.1	71.0
	7.0	14.0	2.5
3	0	7.2	3.2	103.3	73.5
	9.0	16.5	2.4