Fig. 2From: High-throughput analysis of amino acids in plant materials by single quadrupole mass spectrometryRecoveries of amino acids measure in eight different biological materials. Box plot of measured amino acid concentrations of eight different sample materials relative to corresponding values obtained from an external certified laboratory or certified values of the reference material. Box edges denotes first and third quartile. Line in box denotes median value. Whiskers denote highest and lowest valuesBack to article page