Separation of amino acid and amide nitrogen from plant extracts for 15N analysis

An improved colorimetric determination of amino acids with the use of ninhydrin

1966 • 780 citations

The determination of nitrogen-15 by emission and mass spectrometry in biochemical analysis: a review

1975 • 430 citations

A rapid radioactive assay for glutamine synthetase, glutaminase, asparagine synthetase, and asparaginase

1970 • 135 citations

Determination of Ammonium, Amide, Nitrite, and Nitrate Nitrogen in Plant Extracts

1953 • 90 citations

Ammonia Assimilation in the Roots of Nitrate- and Ammonia-Grown Hordeum Vulgare (cv Golden Promise)

1983 • 86 citations

Amino Acid Metabolism of Pea Leaves

1977 • 66 citations

Release of nitrogen from amino acids with ninhydrin for 15N analysis

1965 • 36 citations

Emission spectrometry for routine analysis of nitrogen-15 in agriculture

1972 • 32 citations

Improvements in the determination of nitrogen-15 in the low concentration range by emission spectroscopy

1971 • 28 citations

Emission spectrometric 15N analysis of the amino acids and amides in plant tissues separated by thin layer chromatography

1975 • 23 citations

Optical emission spectrographic studies on the distribution and accumulation of nanogram amounts of 15N in rice seedlings

1969 • 15 citations

An improved procedure for 15N determination by emission spectrometry

1981 • 9 citations

A method for the isolation of the amide nitrogen of glutamine from biological samples for mass spectrometry

1982 • 7 citations