FIA spectrophotometry was studied to analyse the content of phosphorus in phosphorous composite fertilizer.NH 4VO 3 (NH 4) 2MoO 4 developing agent was used as carrier.The interference of EDTA was eliminated by increas...FIA spectrophotometry was studied to analyse the content of phosphorus in phosphorous composite fertilizer.NH 4VO 3 (NH 4) 2MoO 4 developing agent was used as carrier.The interference of EDTA was eliminated by increasing the concentration of (NH 4) 2MoO 4.And other ions had no effect on determination.The linear breadth was 4～8mg/100ml P 2O 5,RSD≤5%,RE≤5%.The method had the advantages of rapidness、simplicity and accuracy.展开更多
文摘FIA spectrophotometry was studied to analyse the content of phosphorus in phosphorous composite fertilizer.NH 4VO 3 (NH 4) 2MoO 4 developing agent was used as carrier.The interference of EDTA was eliminated by increasing the concentration of (NH 4) 2MoO 4.And other ions had no effect on determination.The linear breadth was 4～8mg/100ml P 2O 5,RSD≤5%,RE≤5%.The method had the advantages of rapidness、simplicity and accuracy.
