leucine enkephalin, Pubchem 3903; ms2: MassBank CO000247, CE 20V ; Dennis W. Hill, Tzipporah M. Kertesz, Robert Friedman, David F. Grant. Excel Add-In: default parameters , but mass error window at 5 mDa. Isotope Ratios Calculated; 172 seconds
	120.0816	704.966	70
	132.1021	144.012	14
	136.0762	477.41	48
	177.1027	532.23	53
	205.0971	1523.856	152
	221.0915	690.263	69
	234.1236	160.37	16
	262.1174	902.824	90
	278.1118	3453.749	345
	279.1688	2111.977	211
	318.1801	133.106	13
	323.1384	133.204	13
	336.1915	1094.45	109
	347.2071	185.394	19
	375.2028	616.358	62
	379.1883	101.071	10
	380.1605	351.801	35
	393.2128	551.315	55
	397.1844	10000	999
	403.1967	175.56	18
	425.1798	5300.876	530
	443.1925	323.174	32
	465.2491	103.992	10
	493.2437	302.921	30
	510.2698	867.478	87
	538.2642	930.672	93
	556.2729	5871.47	587