用去离子水代替无氨水测定氨氮.pdf

2003 年2 月 Fe . , 2003 第23 卷第2 期 Industrial Water Treatment Vol. 23 No. 2 方淑琴, 姜晓波, 易卫东, 李飞 ( 江苏省通州市环境监测站, 江苏 通州 226300) [ ] 56 3, , , , , , , , , , [ ] ; ; [ ] O661; X703 [ ] B [ ] 1005- 829X( 2003) 02- 0048- 02 Determination of ammonium using deionized water instead of ammonia-free water Fang Shuqin, Jiang Xiao o, Yi Weidong,Li Fei ( Tongz hou Environmental Monitoring Station , Jiangs u Province , Tongz hou 226300, China) Abstract: According to regulations in the third edition of / supervision and determination of water and waste water0 , all the reagents used during the determination of ammonium y Nessler. s Spectrometric method must e prepared for using ammonia-free re-distilled water, and the requirements for the determination process are the same. The preparation of am- monia-free water, however, needs a lot of time, la or and money, so ammonia-free water is not suita le for the determ-i nation of lots of samples. They use deionized water instead of ammonia-free water in the determination of ammonium and find that standard curve, accuracy and preciseness all meet the needs. The results indicate that this method saves time and la or and also is suita le for ulk determination, thereupon has practical value. Key words: deionized water; spectrophotometry; ammonia nitrogen 56( 3 ) ( , 56) , NH3 - NH3 - N , , N, 0. 1 molPL , 1 , 50 mL , 1. 1 仪器与试剂 , , : 721 , ; : , , , [ 7] Kipp Rachael A, Li Yinguin, Simon Jerald A, et al . A tetra- ( ipyridy