FIA-分光光度法快速测定磷复肥中的磷  

RAPID DETERMINATION OF PHOSPHORUS IN PHOSPHOROUS COMPOSITE FERTILIZER WITH FIA-SPECTROPHOTOMETRY

作　　者：高伟[1] 夏秦川[1] 卢万新[1] 

机构地区：[1]四川大学化学学院,四川成都610064

出　　处：《化学研究与应用》2000年第4期449-451,共3页Chemical Research and Application

摘　　要：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.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.

关 键 词：磷复肥 磷 FIA-分光光度法 快速测定 EDTA 

分 类 号：TQ442.072[化学工程—化学肥料工业] O657.32[理学—分析化学]