TY - RPRT TI - Leaf extract purification by silver nitrate-silica gel thin-layer chromatography. AU - J A Zabkiewicz AU - R A Keates AU - C J Brooks PY - 1968 DO - 10.1042/bj1090929 UR - https://pubmed.ncbi.nlm.nih.gov/4301451/ ID - 4301451 ER -