Table 4.

Stability, repeatability, precision and recovery of 6 compounds

No	Stability RSD (%) (n = 6)	Repeatability RSD (%) (n = 6)	Precision		Recovery (n = 6)
			Intra-day RSD (%) (n = 6)	Inter-day RSD (%) (n = 3)	Sample (g)	Original (µg)	Spiked (µg)	Found (µg)	Recovery (%)	Average recovery (%)	RSD (%)
1	3.41	3.12	2.73	2.85	0.502	1.009	1.092	2.383	125.87
					0.502	1.009	1.092	2.654	150.67
					0.503	1.011	1.092	2.418	128.81	134.46	7.91
					0.512	1.029	1.092	2.583	142.33
					0.501	1.007	1.092	2.494	136.14
					0.518	1.041	1.092	2.383	122.92
2	3.55	3.24	1.68	2.79	0.502	0.512	0.535	1.184	125.61
					0.502	0.512	0.535	1.318	150.65
					0.503	0.513	0.535	1.203	128.97
					0.512	0.522	0.535	1.328	150.65	134.05	9.70
					0.501	0.511	0.535	1.183	125.61
					0.518	0.528	0.535	1.185	122.80
3	3.64	1.92	2.58	2.12	0.502	0.512	0.594	1.345	140.29
					0.502	0.512	0.594	1.430	154.48
					0.503	0.513	0.594	1.390	147.60
					0.512	0.522	0.594	1.454	156.79	150.04	3.88
					0.501	0.511	0.594	1.398	149.35
					0.518	0.528	0.594	1.430	151.73
4	3.47	1.23	2.22	4.05	0.502	0.638	0.672	1.505	129.15
					0.502	0.638	0.672	1.674	154.28
					0.503	0.639	0.672	1.492	126.94	143.88	8.68
					0.512	0.650	0.672	1.683	153.70
					0.501	0.636	0.672	1.630	147.93
					0.518	0.658	0.672	1.674	151.26
5	3.95	1.97	2.11	4.63	0.502	2.113	2.131	4.159	96.01
					0.502	2.113	2.131	4.457	109.99
					0.503	2.118	2.131	4.230	99.11
					0.512	2.156	2.131	4.430	106.71	105.53	9.65
					0.501	2.109	2.131	4.201	98.17
					0.518	2.181	2.131	4.806	123.18
6	3.73	3.30	1.67	2.90	0.502	1.531	1.512	3.051	100.52
					0.502	1.531	1.512	3.092	103.20
					0.503	1.534	1.512	3.106	103.98
					0.512	1.562	1.512	3.289	114.24	104.38	6.19
					0.501	1.528	1.512	2.974	95.66
					0.518	1.580	1.512	3.224	108.71