Website Enriched Standards

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	S	T
1	ISOTOPES \ Tracer-Tracee ratio (t/T)	t/T	t/T	t/T	t/T	t/T	t/T	t/T	t/T	t/T	t/T	t/T	t/T	t/T	t/T	Tracer-only	Dilution fluid only	Tracee (µM)	Tracer-only (µM)

2	ISOTOPE MIXTURE #1 to #15	#1	#2	#3	#4	#5	#6	#7	#8	#9	#10	#11	#12	#13	#14	#15
3	L-Arginine (guanido-15N2)	0.983	0.491	0.197	0.0983	0.0491	0.0197	0.00983	0.00491	0.00197	0.00098	0.000491	0.000197	0.000098	0	Pure Tracer		93.6	91.9
4	L-Citrulline (5-13C,;4,4,5,5-D4)	1.171	0.586	0.234	0.1171	0.0586	0.0234	0.01171	0.00586	0.00234	0.00117	0.000586	0.000234	0.000117	0	Pure Tracer		52	60.9
5	Glycine (1-13C)	0.971	0.486	0.194	0.0971	0.0486	0.0194	0.00971	0.00486	0.00194	0.00097	0.000486	0.000194	0.000097	0	Pure Tracer		177.1	172
6	Hydroxyproline (2-D1)	1.013	0.506	0.203	0.1013	0.0506	0.0203	0.01013	0.00506	0.00203	0.00101	0.000506	0.000203	0.000101	0	Pure Tracer		45.5	46.1
7	L-Leucine (5,5,5-D3)	0.731	0.366	0.146	0.0731	0.0366	0.0146	0.00731	0.00366	0.00146	0.00073	0.000366	0.000146	0.000073	0	Pure Tracer		90.2	65.9
8	L-Methionine (methyl-13C)	0.921	0.46	0.184	0.0921	0.046	0.0184	0.00921	0.0046	0.00184	0.00092	0.00046	0.000184	0.000092	0	Pure Tracer		46.8	43.1
9	L-Phenylalanine (ring-D5)	0.854	0.427	0.171	0.0854	0.0427	0.0171	0.00854	0.00427	0.00171	0.00085	0.000427	0.000171	0.000085	0	Pure Tracer		97	82.8
10	Taurine (1,2-13C2)	1.057	0.528	0.211	0.1057	0.0528	0.0211	0.01057	0.00528	0.00211	0.00106	0.000528	0.000211	0.000106	0	Pure Tracer		97.7	103.2
11	L-Tyrosine (3,3-D2)	1.015	0.507	0.203	0.1015	0.0507	0.0203	0.01015	0.00507	0.00203	0.00101	0.000507	0.000203	0.000101	0	Pure Tracer		94.8	96.2
12
13	ISOTOPE MIXTURE #16 to #30	#16	#17	#18	#19	#20	#21	#22	#23	#24	#25	#26	#27	#28	#29	#30
14	L-Citrulline-5-13C,5,5-D2	1.063	0.531	0.213	0.1063	0.0531	0.0213	0.01063	0.00531	0.00213	0.00106	0.000531	0.000213	0.000106	0	Pure Tracer		45.3	48.1
15	L-Glutamic acid (1,2-13C2)	1.066	0.533	0.213	0.1066	0.0533	0.0213	0.01066	0.00533	0.00213	0.00107	0.000533	0.000213	0.000107	0	Pure Tracer		92.6	98.7
16	Glycine (1,2-13C2)	1.102	0.551	0.22	0.1102	0.0551	0.022	0.01102	0.00551	0.0022	0.0011	0.000551	0.00022	0.00011	0	Pure Tracer		188	207.2
17	L-Leucine (15N)	0.938	0.469	0.188	0.0938	0.0469	0.0188	0.00938	0.00469	0.00188	0.00094	0.000469	0.000188	0.000094	0	Pure Tracer		93.4	87.6
18	L-Methionine (1-13C, methyl-D3)	1.035	0.517	0.207	0.1035	0.0517	0.0207	0.01035	0.00517	0.00207	0.00103	0.000517	0.000207	0.000103	0	Pure Tracer		46.2	47.8
19	tau-methyl-L-Histidine (methyl-D3)	2.098	1.049	0.42	0.2098	0.1049	0.042	0.02098	0.01049	0.0042	0.0021	0.001049	0.00042	0.00021	0	Pure Tracer		8.3	17.3
20	L-Phenylalanine (ring-13C6)	0.926	0.463	0.185	0.0926	0.0463	0.0185	0.00926	0.00463	0.00185	0.00093	0.000463	0.000185	0.000093	0	Pure Tracer		90.3	83.6
21	L-Tryptophan (15N2)	0.971	0.486	0.194	0.0971	0.0486	0.0194	0.00971	0.00486	0.00194	0.00097	0.000486	0.000194	0.000097	0	Pure Tracer		47.4	46
22	L-Tyrosine (ring-3,5-D2)	0.998	0.499	0.2	0.0998	0.0499	0.02	0.00998	0.00499	0.002	0.001	0.000499	0.0002	0.0001	0	Pure Tracer		96.9	96.7
23
24	ISOTOPE MIXTURE #31 to #45	#31	#32	#33	#34	#35	#36	#37	#38	#39	#40	#41	#42	#43	#44	#45
25	L-Alanine (2-D)	0.865	0.432	0.173	0.0865	0.0432	0.0173	0.00865	0.00432	0.00173	0.00086	0.000432	0.000173	0.000086	0	Pure Tracer		188.6	149.5
26	L-Citrulline (1,2,3,4,5-13C5,98%)	0.837	0.418	0.167	0.0837	0.0418	0.0167	0.00837	0.00418	0.00167	0.00084	0.000418	0.000167	0.000084	0	Pure Tracer		50.9	39
27	Glycine (2,2-D2,15N)	0.966	0.483	0.193	0.0966	0.0483	0.0193	0.00966	0.00483	0.00193	0.00097	0.000483	0.000193	0.000097	0	Pure Tracer		187.3	165.9
28	L-Leucine (1-13C)	1.038	0.519	0.208	0.1038	0.0519	0.0208	0.01038	0.00519	0.00208	0.00104	0.000519	0.000208	0.000104	0	Pure Tracer		91.9	87.4
29	L-Phenylalanine (1-13C)	1.056	0.528	0.211	0.1056	0.0528	0.0211	0.01056	0.00528	0.00211	0.00106	0.000528	0.000211	0.000106	0	Pure Tracer		89.1	86.2
30	L-Threonine (15N)	0.913	0.456	0.183	0.0913	0.0456	0.0183	0.00913	0.00456	0.00183	0.00091	0.000456	0.000183	0.000091	0	Pure Tracer		103.9	87
31	L-Tyrosine (1-13C)	1.119	0.559	0.224	0.1119	0.0559	0.0224	0.01119	0.00559	0.00224	0.00112	0.000559	0.000224	0.000112	0	Pure Tracer		93.9	96.2
32
33	ISOTOPE MIXTURE #46 to #60	#46	#47	#48	#49	#50	#51	#52	#53	#54	#55	#56	#57	#58	#59	#60
34	L-Alanine (15N)	1.009	0.505	0.202	0.1009	0.0505	0.0202	0.01009	0.00505	0.00202	0.00101	0.000505	0.000202	0.000101	0	Pure Tracer		182.3	183.9
35	L-Arginine (guanidino-15N2, 99 AP 15N1; 5,5-2H2, 98 AP 2H1)	0.879	0.439	0.176	0.0879	0.0439	0.0176	0.00879	0.00439	0.00176	0.00088	0.000439	0.000176	0.000088	0	Pure Tracer		92.3	81.1
36	L-Citrulline (5,5-D2)	0.92	0.46	0.184	0.092	0.046	0.0184	0.0092	0.0046	0.00184	0.00092	0.00046	0.000184	0.000092	0	Pure Tracer		48.3	44.4
37	Glycine (15N)	0.967	0.483	0.193	0.0967	0.0483	0.0193	0.00967	0.00483	0.00193	0.00097	0.000483	0.000193	0.000097	0	Pure Tracer		179.5	173.5
38	L-Phenylalanine (15N)	0.978	0.489	0.196	0.0978	0.0489	0.0196	0.00978	0.00489	0.00196	0.00098	0.000489	0.000196	0.000098	0	Pure Tracer		91.8	89.8
39	L-Proline (15N)	0.907	0.454	0.181	0.0907	0.0454	0.0181	0.00907	0.00454	0.00181	0.00091	0.000454	0.000181	0.000091	0	Pure Tracer		186.6	169.3
40	L-Tyrosine-15N	1.051	0.526	0.21	0.1051	0.0526	0.021	0.01051	0.00526	0.0021	0.00105	0.000526	0.00021	0.000105	0	Pure Tracer		94.4	99.3
41
42	ISOTOPE MIXTURE #61 to #75	#61	#62	#63	#64	#65	#66	#67	#68	#69	#70	#71	#72	#73	#74	#75
43	L-Asparagine:H2O (15N2)	1.376	0.688	0.275	0.1376	0.0688	0.0275	0.01376	0.00688	0.00275	0.00138	0.000688	0.000275	0.000138	0	Pure Tracer		94.8	130.4
44	Glycine (D5)	0.873	0.436	0.175	0.0873	0.0436	0.0175	0.00873	0.00436	0.00175	0.00087	0.000436	0.000175	0.000087	0	Pure Tracer		179.4	156.6
45	L-Lysine:2HCL (epsilon-15N)	1.072	0.536	0.214	0.1072	0.0536	0.0214	0.01072	0.00536	0.00214	0.00107	0.000536	0.000214	0.000107	0	Pure Tracer		178.7	191.5
46	L-Tyrosine (U-13C9,15N)	0.74	0.37	0.148	0.074	0.037	0.0148	0.0074	0.0037	0.00148	0.00074	0.00037	0.000148	0.000074	0	Pure Tracer		92.6	68.5
47
48	ISOTOPE MIXTURE #76 to #90	#76	#77	#78	#79	#80	#81	#82	#83	#84	#85	#86	#87	#88	#89	#90
49	L-Arginine-guanido-13C	0.998	0.499	0.2	0.0998	0.0499	0.02	0.00998	0.00499	0.002	0.001	0.000499	0.0002	0.0001	0	Pure Tracer		91.2	91
50	L-Citrulline (Ureido-15N1)	0.898	0.449	0.18	0.0898	0.0449	0.018	0.00898	0.00449	0.0018	0.0009	0.000449	0.00018	0.00009	0	Pure Tracer		45.9	41.3
51	L-Tyrosine (ring-D4)	1.279	0.639	0.256	0.1279	0.0639	0.0256	0.01279	0.00639	0.00256	0.00128	0.000639	0.000256	0.000128	0	Pure Tracer		90.9	116.2
52
53	ISOTOPE MIXTURE #91 to #99	#91	#92	#93	#94	#95	#96	#97							#98	#99		Tracer mix1	Tracer mix2
54	Ratio tracer1/tracer2
55	D-Phe (1-13C/ringD5)	1.025	0.974	0.923	0.82	0.615	0.41	0.205							Tracer 1 only	Tracer 2 only		4.86	4.74
56	allo-ILE (13C6/D10-15N)	0.985	0.936	0.886	0.788	0.591	0.394	0.197							Tracer 1 only	Tracer 2 only		4.71	4.78
57
58	ISOTOPE MIXTURE #101 to #115	#101	#102	#103	#104	#105	#106	#107	#108	#109	#110	#111	#112	#113	#114	#115
59	L-Citrulline (ureido-13C,5,5-D2)	0.216	0.108	0.043	0.0216	0.0108	0.0043	0.00216	0.00108	0.00043	0.00022	0.000108	0.000043	0.000022	0	Pure Tracer		45.4	9.8
60	L-Glutamic acid-15N	0.183	0.092	0.037	0.0183	0.0092	0.0037	0.00183	0.00092	0.00037	0.00018	0.000092	0.000037	0.000018	0	Pure Tracer		90.9	16.7
61	Glycine (2,2-D2)	0.989	0.495	0.198	0.0989	0.0495	0.0198	0.00989	0.00495	0.00198	0.00099	0.000495	0.000198	0.000099	0	Pure Tracer		181.5	179.6
62	trans-4-hydroxy-L-proline-2,5,5-d3	4.789	2.395	0.958	0.4789	0.2395	0.0958	0.04789	0.02395	0.00958	0.00479	0.002395	0.000958	0.000479	0	Pure Tracer		9.2	44.2
63	L-Ornithine-L-[15N2]	1.024	0.512	0.205	0.1024	0.0512	0.0205	0.01024	0.00512	0.00205	0.00102	0.000512	0.000205	0.000102	0	Pure Tracer		90.5	92.7
64	L-Phenylalanine (13C9,15N)	1.009	0.505	0.202	0.1009	0.0505	0.0202	0.01009	0.00505	0.00202	0.00101	0.000505	0.000202	0.000101	0	Pure Tracer		91	91.9
65	L-Proline-U-13C5-15N	0.953	0.476	0.191	0.0953	0.0476	0.0191	0.00953	0.00476	0.00191	0.00095	0.000476	0.000191	0.000095	0	Pure Tracer		91	86.7
66	L-Taurine (1,2-13C2)	0.979	0.489	0.196	0.0979	0.0489	0.0196	0.00979	0.00489	0.00196	0.00098	0.000489	0.000196	0.000098	0	Pure Tracer		90.7	88.7
67
68	ISOTOPE MIXTURE #116 to #130	#116	#117	#118	#119	#120	#121	#122	#123	#124	#125	#126	#127	#128	#129	#130
69	L-Alanine(2-D)	0.586	0.293	0.117	0.0586	0.0293	0.0117	0.00586	0.00293	0.00117	0.00059	0.000293	0.000117	0.000059	0	Pure Tracer		227.4	133.4
70	L-Arginine (ALPHA-15N, 98%+)	0.958	0.479	0.192	0.0958	0.0479	0.0192	0.00958	0.00479	0.001916	0.00096	0.000479	0.000192	0.000096	0	Pure Tracer		68.5	65.7
71	L-Isoleucine (1-13C)	0.992	0.496	0.198	0.0992	0.0496	0.0198	0.00992	0.00496	0.00198	0.00099	0.000496	0.000198	0.000099	0	Pure Tracer		90.7	89.9
72	L-Ornithine (13C5)	0.974	0.487	0.195	0.0974	0.0487	0.0195	0.00974	0.00487	0.00195	0.00097	0.000487	0.000195	0.000097	0	Pure Tracer		90.7	88.4
73	L-Phenylalanine D8	0.985	0.492	0.197	0.0985	0.0492	0.0197	0.00985	0.00492	0.00197	0.00098	0.000492	0.000197	0.000098	0	Pure Tracer		90.8	89.4
74	L-Proline-L-[1-13C]	1.02	0.51	0.204	0.102	0.051	0.0204	0.0102	0.0051	0.00204	0.00102	0.00051	0.000204	0.000102	0	Pure Tracer		136.2	138.9
75	L-Tyrosine (ring-13C6)	1.017	0.509	0.203	0.1017	0.0509	0.0203	0.01017	0.00509	0.00203	0.00102	0.000509	0.000203	0.000102	0	Pure Tracer		68.3	69.5
76
77	ISOTOPE MIXTURE #131 to #145	#131	#132	#133	#134	#135	#136	#137	#138	#139	#140	#141	#142	#143	#144	#145
78	L-Alanine 3,3,3 (D3)	0.988	0.494	0.198	0.0988	0.0494	0.0198	0.00988	0.00494	0.00198	0.00099	0.000494	0.000198	0.000099	0	Pure Tracer		227.6	225
79	L-Arginine (15N2, 5,5-2H2)	0.973	0.487	0.195	0.0973	0.0487	0.0195	0.00973	0.00487	0.00195	0.00097	0.000487	0.000195	0.000097	0	Pure Tracer		68.3	66.4
80	L-Aspartic Acid (15N)	1.018	0.509	0.204	0.1018	0.0509	0.0204	0.01018	0.00509	0.00204	0.00102	0.000509	0.000204	0.000102	0	Pure Tracer		90.8	92.5
81	L-Histidine:HCL:H2O(Alpha-15N)	0.994	0.497	0.199	0.0994	0.0497	0.0199	0.00994	0.00497	0.00199	0.00099	0.000497	0.000199	0.000099	0	Pure Tracer		91	90.4
82	L-Isoleucine (15N)	1.037	0.519	0.207	0.1037	0.0519	0.0207	0.01037	0.00519	0.00207	0.00104	0.000519	0.000207	0.000104	0	Pure Tracer		91.3	94.7
83	L-Lysine-a-15N-2HCL	0.991	0.496	0.198	0.0991	0.0496	0.0198	0.00991	0.00496	0.00198	0.00099	0.000496	0.000198	0.000099	0	Pure Tracer		136	134.8
84	L-Ornithine.HCl (5-13C, 4,4,5,5-D4)	0.973	0.486	0.195	0.0973	0.0486	0.0195	0.00973	0.00486	0.00195	0.00097	0.000486	0.000195	0.000097	0	Pure Tracer		68.1	66.2
85	L-Serine(15N)	1.064	0.532	0.213	0.1064	0.0532	0.0213	0.01064	0.00532	0.00213	0.00106	0.000532	0.000213	0.000106	0	Pure Tracer		90.6	96.4
86	L-Valine 1-13C	1.001	0.5	0.2	0.1001	0.05	0.02	0.01001	0.005	0.002	0.001	0.0005	0.0002	0.0001	0	Pure Tracer		181.8	182
87
88	ISOTOPE MIXTURE #146 to #157				#146	#147	#148	#149	#150	#151	#152	#153	#154	#155	#156	#157
89	Glutathione (glycine-13C2,15N)				0.0625	0.03125	0.0125	0.00625	0.00313	0.00125	0.00063	0.00031	0.00013	0.00006	0	Pure Tracer		215	134
90
91	ISOTOPE MIXTURE #161 to #175	#161	#162	#163	#164	#165	#166	#167	#168	#169	#170	#171	#172	#173	#174	#175
92	L-KIC-methyl (1-13C)	0.968	0.484	0.194	0.0968	0.0484	0.0194	0.00968	0.00484	0.00194	0.00097	0.000484	0.000194	0.000097	0	Pure Tracer		89.8	87
93
94	ISOTOPE MIXTURE #176 to190	#176	#177	#178	#179	#180	#181	#182	#183	#184	#185	#186	#187	#188	#189	#190
95	L-Arginine:HCl (1,2,3,4,5-13C5)	0.875	0.437	0.175	0.0875	0.0437	0.0175	0.00875	0.00437	0.00175	0.000875	0.000437	0.000175	0.0000875	0	Pure Tracer		68.2	59.7
96	L-Glutamic Acid (13C5)	0.615	0.307	0.123	0.0615	0.0307	0.0123	0.00615	0.00307	0.00123	0.000615	0.000307	0.000123	0.0000615	0	Pure Tracer		70.2	43.2
97	L-Histidine:HCL:H2O (<5% D) (15N3)	0.836	0.418	0.167	0.0836	0.0418	0.0167	0.00836	0.00418	0.00167	0.000836	0.000418	0.000167	0.0000836	0	Pure Tracer		69.5	58.1
98	L-Ornithine:HCl (1,2-13C2)	0.857	0.428	0.171	0.0857	0.0428	0.0171	0.00857	0.00428	0.00171	0.000857	0.000428	0.000171	0.0000857	0	Pure Tracer		49.6	42.5
99	L-Phenylalanine (13C9)	0.992	0.496	0.198	0.0992	0.0496	0.0198	0.00992	0.00496	0.00198	0.000992	0.000496	0.000198	0.0000992	0	Pure Tracer		44.7	44.3
100	L-Proline (U-13C5)	0.106	0.053	0.021	0.0106	0.0053	0.00213	0.00106	0.000532	0.000213	0.000106	0.000053	0.000021	0.0000106	0	Pure Tracer		75.1	7.99