J. Ma

ON THE USE OF NUCLEAR MAGNETIC RESONANCE FOR THE DETECTION, ESTIMATION, AND CHARACTERIZATION OF N-METHYL GROUPS

E. Warnhoff, J. Ma, 1965 .

Source of error in preparative thick-layer chromatography.

J. Ma, 1966, Journal of chromatography.

Addition reactions of acetylenic esters with substituted thioureas

J. Lown,, J. Ma, 1967 .

Ceanothine-B, a naturally occurring oxazacyclononadiene.

E. Warnhoff, P. Reynolds-Warnhoff, J. Ma, 1965, Journal of the American Chemical Society.

CEANOTHUS ALKALOIDS: I. ISOLATION, SEPARATION, AND CHARACTERIZATION

S. Pradhan, E. Warnhoff, J. Ma, 1965 .

A simple, rapid method for HPLC analysis of lycopene isomers.

B. K. Ishida, J. Ma, B. Chan, 2001, Phytochemical analysis : PCA.