Table 1.

Concentrations of 15 amino acids and cobalt salts.

L①	Gly	Ala	Val	Ser	Thr	His	Pro	Met	Cys	Arg	Lys	Glu	Gln	Asn	Asp
Mr	75	89	117	105	119	155	115	149	121	174	146	147	146	132	133
c ② Co × 10−3	6.0	0.33	0.5	1.0	1.0	0.028	0.33	1.0	0.1	0.25	0.2	1.0	1.0	2.0	2.0
c L × 10−3	18.0	1.0	1.5	3.0	3.0	0.056	1.0	3.0	0.3	0.75	0.6	3.0	3.0	6.0	6.0

Notes: ① amino acids ligands; ②  c: mol·L⁻¹.