Table 4. Repeatability and Reproducibility of Relative Intensity of Overall Mass Peaks.

	repeatability			reproducibility
theoretical m/z	average relative intensity (%)	SD (%)	RSD (%)	average relative intensity (%)	SD (%)	RSD (%)
251.0197	7.56	1.50	19.78	8.50	2.42	28.43
311.0772	58.68	1.03	1.75	60.32	6.68	11.07
355.10340	93.77	1.40	1.49	92.36	4.92	5.33
411.0932	68.46	1.30	1.89	68.83	4.55	6.60
463.0517	42.16	0.59	1.41	45.65	6.50	14.24
519.042	23.32	0.53	2.27	24.40	5.77	23.65
573.0524	11.38	0.87	7.67	11.86	3.92	33.03