I. Matejovic et M. Bielikova, EVALUATION OF THE ISOTACHOPHORETIC DETERMINATION OF NITRATES AND SULFATES IN PLANT MATERIALS, Fresenius' journal of analytical chemistry, 349(7), 1994, pp. 559-562
The results of nitrate and sulfate determinations in plant samples by
the means of capillary isotachophoresis are compared with those obtain
ed in an International Plant-Analytical Exchange, organized by Wagenin
gen Agricultural University. Both accuracy and repeatability of the is
otachophoretic method are in good agreement with those of the intercom
parison using various different procedures.