Table 4.

MRM transition parameters for detection of amine’s tosyl derivatives

Compound	MRMa	Declustering potential/V	Collision energy/V
Methylamine	186.101 → 155	71	17
	186.101 → 91	71	29
Dimethylamine	200.121 → 155	76	25
	200.121 → 91	76	37
Propylamine	214.095 → 155.10	71	23
	214.095 → 91	71	37
Butylamine	228.144 → 155	66	23
	228.144 → 91	61	37
Isobutylamine	228.144 → 155	66	23
	228.144 → 91	61	37
Diethylamine	228.144 → 155	66	23
	228.144 → 91	61	37
2-Phenylethylamine	276.127 → 105	66	23
	276.127 → 77	66	69
Isopentylamine	242.157 → 155	66	27
	242.157 → 91	66	43
Tryptamine	315.060 → 144.10	51	17
	315.060 → 117	51	77
Cadaverine	411.10 → 240.20	96	23
	411.10 → 184.10	96	29
Putrescine	397.11 → 226.30	96	23
	397.11 → 155.10	96	35
Spermidine	608.284 → 383.20	91	31
	608.284 → 226.30	106	37
Spermine	819.336 → 212.100	126	49
	819.336 → 281.100	126	51
Tyramine	446.172 → 275.100	101	21
	446.172 → 155.000	101	35
Histamine	420.095 → 109.000	81	35
	420.095 → 91.000	81	67
Hexylamine	256.190 → 155.100	71	27
	256.190 → 91.000	71	41
Agmatine	439.218 → 155.200	121	37
	439.218 → 91.000	121	71

Condition of ESI source: Source temperature 500 °C, nebulizer gas 45 psi, heater gas 30 psi, curtain gas 20 psi, capillary voltage 5000 V