COMPARISON STUDY OF 4 ATOMIC SPECTROMETRIC METHODS FOR THE DETERMINATION OF METALLIC CONSTITUENTS IN ORANGE JUICE

Metal constituents in orange juice have been determined by four atomic spectral methods—flame atomic absorption spectrometry, flame atomic emission/fluorescence spectrometry, dc plasma atomic emission spectrometry, and inductively coupled plasma atomic emission spectrometry. Substantial differences between methods were observed with regard to speed, convenience, precision, detection limits, and interpretation of analytical calibration curves near the detection limits. In general, however, all atomic spectral methods used in the comparison gave plausible agreement in the values obtained. © 1979, American Chemical Society. All rights reserved.