TY  - RPRT
TI  - A modified ninhydrin colorimetric analysis for amino acids.
AU  - H ROSEN
PY  - 1957
DO  - 10.1016/0003-9861(57)90241-2
UR  - https://pubmed.ncbi.nlm.nih.gov/13412116/
ID  - 13412116
ER  -