Table 1.

Retention time, accurate mass, correlation coefficients, linear ranges, LODs and LLOQs of 23 analytes.

Analyte	Retention time (min)	Protonated ion mass [M + H]+		Mass error (ppm)	Correlation coefficient (r2)	Linear range (μg/g)	LOD (μg/g)	LLOQ (μg/g)
		Theoretical	Experimental
Apomorphine	1.72	268.1332	268.1331	−0.4	0.9995	0.15–10	0.05	0.15
Yohimbine	3.42	355.2016	355.2013	−0.8	0.9994	0.15–10	0.05	0.15
Phentolamine	4.78	282.1601	282.1603	0.7	0.9991	0.05–8	0.02	0.05
Noracetildenafil	5.65	453.2609	453.2608	−0.2	0.9991	0.05–10	0.02	0.05
Acetildenafil	6.12	467.2765	467.2761	−0.9	0.9986	0.05–10	0.02	0.05
Vardenafil	6.70	489.2279	489.2274	−1.0	0.9998	0.05–10	0.02	0.05
Hydroxyhomosildenafil	7.00	505.2228	505.2227	−0.2	1.0000	0.05–10	0.02	0.05
Sildenafil	7.22	475.2122	475.2118	−0.8	1.0000	0.05–10	0.02	0.05
Homosildenafil	7.63	489.2279	489.2274	−1.0	1.0000	0.05–10	0.02	0.05
Aminotadalafil	7.83	391.1401	391.1403	0.5	0.9996	0.25–10	0.10	0.25
Aildenafil	7.87	489.2278	489.2274	−0.8	1.0000	0.05–10	0.02	0.05
Avanafil	7.89	484.1858	484.1855	−0.6	0.9993	0.05–10	0.02	0.05
Demethyltadalafil	8.10	376.1298	376.1294	−1.1	0.9996	0.25–10	0.10	0.25
Udenafil	8.52	517.2592	517.2587	−1.0	0.9992	0.05–10	0.02	0.05
Tadalafil	9.41	390.1448	390.145	0.5	0.9996	0.15–10	0.05	0.15
Dapoxetine	10.84	306.1852	306.1849	−1.0	0.9984	0.005–2.5	0.002	0.005
Testosterone	12.25	289.2162	289.2161	−0.3	0.9997	0.15–10	0.05	0.15
Sulfoaildenafil	13.05	505.2050	505.2048	−0.4	0.9994	0.05–10	0.02	0.05
Methyltestosterone	13.58	303.2319	303.2321	0.7	0.9991	0.15–10	0.05	0.15
Propoxyphenyl-thiohydroxyhomosildenafil	13.76	535.2156	535.2152	−0.7	0.9995	0.15–10	0.05	0.15
Pseudovardenafil	14.48	460.2013	460.2009	−0.9	0.9991	0.05–10	0.02	0.05
Norneosildenafil	15.14	460.2013	460.2007	−1.3	0.9994	0.05–10	0.02	0.05
Testosterone propionate	16.28	345.2424	345.2423	−0.3	0.9998	0.25–10	0.10	0.25