Rapid Analysis of Seven Polyamines in Nephotettix cincticeps by Using Ultra-Performance Liquid Chromatography-Triple Quadrupole Mass Spectrometry

Table 2

Concentration of PAs in N. cincticeps given in ng/mg ± standard deviation, spiked concentration (ng/mg), mean recoveries, and inter- and intraday precision.

PAs	Concentration in N. cincticeps (ng/mg)	Spiked concentration (ng/mg)	Recovery (%)	Intraday RSD % (n = 5)	Interday RSD % (n = 5)
Dap	23.76 ± 2.98	25	92	2.04	2.08
		50	93	3.43	3.47
		100	94	4.94	5.32
Put	314.12 ± 39.08	100	96	2.49	2.79
		200	94	3.55	3.64
		400	93	2.93	3.31
Cad	2.25 ± 0.39	5	97	2.39	3.21
		10	96	2.98	3.72
		500	86	1.97	2.90
Agm	1.27 ± 0.10	6	101	6.00	5.33
		12	99	2.46	3.24
		60	98	4.31	4.59
Dad	3.16 ± 0.41	6	115	4.13	4.18
		12	110	5.76	5.92
		60	101	4.38	5.17
Spd	126.88 ± 8.56	120	95	4.33	5.51
		240	103	3.17	4.26
		480	100	2.88	3.07
Spm	8.06 ± 0.70	10	95	2.85	2.92
		20	98	4.74	4.90
		100	99	3.52	4.12

Data are expressed as the mean ± SD.