Content analysis of phosphonates in a plant material

Klosinska T; Archanowicz E; Antczak A; Radomski A; Zielenkiewicz T; Oszako T; Nowakowska JA; Kubiak KA; Tkaczyk M

Przemysl Chemiczny, Vol.94, No.6, 894-899, 2015

Klosinska T, Archanowicz E, Antczak A, Radomski A, Zielenkiewicz T, Oszako T, Nowakowska JA, Kubiak KA, Tkaczyk M

Concn. of PHO32- ions in plant tissues was detd. by using reaction with Ag+ in acidic soln. to metallic Ag ppt. The amt. of Ag was detd. by X-ray fluorescence spectrometry (XRF) and UV-VIS spectrophotometry. The XRF method was less laborious, but its accuracy was lower. Its sensitivity was insufficient to det. very low concns. of phosphonates. The UV-VIS spectrophotometry, after Ag dissoln. in concd. HNO3, complexation of Ag+ with dithizone, extn. with CHCI3, and detn. without removal of free dithizone, showed a significantly higher sensitivity.