1、 35 8 2010 M 8 S 5 ENVIRONMENTALSCIENCEANDMANAGEMENTVolnull35 N onull8Aug. 2010l : 2009- 04- 26T e : ( 1973- ), 3 , = b c I | : 1674-6139(2010) 08-0103-03null9 null i M 0 h “庞宏1,于海霞1,宋利臣2( 1.D ! g S _ , C D ! 154000; 2. C 8 S , C W : 150056)K 1 :在测定null总磷null过程中,样品中经常含有高浓度铁离子对测定结果产生干扰b根据铁离子的化学特征,选择恰
2、当的掩蔽剂对其掩蔽,可以消除铁离子对测定的干扰b通过对 N aOHa氟化钠和 EDTA三种掩蔽剂的掩蔽对比,得出氟化钠掩蔽效果最好,而且测量结果稳定,是非常适合的掩蔽剂b1 o M :总磷;高干扰离子;掩蔽剂 m s | : X832 D S M : AInterference Cancellation aboutH igh Concentration Iron IonsinM easuring TotalPhosphorusPang Hong1, Yu H aixia1, Song L ichen2( 1. JiamusiEnvironmentalM onitoring Central St
3、ation, Jiamusi154000, China;2. Heilongjiang ProvincialResearch Institute of Environm ent Sciences, Harbin 150056, China)Abstract: The results of total phosphorus alw ayswere interfered by high concentration iron ions. A ccording to the chem icalcharacter of the iron ion, chose the appropriate shelte
4、r reagent and cancelled interference ofhigh concentration iron ions. Throughthe contrast shelter effect ofNaOH, NaF and EDTA, the result showed that shelter effect ofN aF was the best and the measurenullments of total phosphoruswere stable. So N aF was the better shelter reagen.tKeywords: total phos
5、phorus; high- interference ion; shelter reagent- a o Z null ! nullV + y T 1, A F C b 7 h “ 1 Z E B b 7 , s k “!103! 35 8 2010 M 8 ! null9 null i M 0 h “Volnull35 N onull8Aug. 2010d , F k 4 E t Q ? 3 b + V “ d “ s , i O M b 7 V F + 7 T k 4 7 4 , 4 a 4 4 b 7 Z T 7 ( 7 4 0 , P = 8 “ 7 $ b)a 7 ( 7 4 1 $
6、 , V 7 $ Q b) 7 ( 7 4 M 0 N , 7 P h “ b)1. 2 N k 41. 2. 1 仪器 721s ; ; 9 ; # 30 cm1 ; h Q ; %50 mL j g 1 5 ; # ) A : | 420 mg ) d 1 000 mL; EDTA A : | 1 850 mg EDTAd 1 000 mL;% F A : | 100 mgY = Y = ) , 100 mL , F 4null00 mLJ , d 250 mL, , i 5 ; A , , , d 250mL,( , i 5 ;5%V ; K A : 5 gV ; K , d 100 m
7、Lb1. 3 “ null 0 l s ; ; 9 nullE D i null : l M 0 i 500 mg /L, V 20mg/L Y A K , 0 S = b9 i v 10 mg /Lb l d 10f E M A : | 145 mg o M 400 mL , | 4null387 mg = _ K 400 mL ,= A F 50 mLB , d 1 000 mLbN A M 0 i 50 mg/L, 9i 1 mg/Lb2 L V | 25. 0 m l “ 100 m l Y 5 , FV ; K A 4 m ,lF 5 g B l v i L = , F H j b|
8、 Y 5 b v , h Q F , Q = r 1. 1 kg/ cm2 (M 120( ) H , V P N 30 m in , T F , V , , | b b_ ) Y 5 s Y F 25 mLN aOH A aEDTA N aF A , F A 4 , A 15 m in, 721s ; ; 9 3b3 T s F N aOH A “ C X Fe( OH ) 3 ,“ s , L E , 7 L b N V n , l i A , NaOH? 3 Q , ? ? M 0 7 T b# F EDTA NaF “ A , L T n V 1bV 1 7 L T F ( m l)
9、9 c ( m g /L) EDTA 25 0. 592 0. 408 ) 25 0. 992 0. 002V T s , ) 7 “ 9 T 3 0null002, 7 EDTA 7 “ 9 T 3 5 0null408, ) 7 r T A z EDTAb4 ) 7 V ) 4. 1 _ 4. 1. 1 模拟废水精密度检验 $ “ A F 10 i ) , _ b_ # T n V 2bV 2 ) 7 _ 9 c ( m g/L) Q 1 2 3 4 5 6 ( ( M ( 0. 992 0. 970 0. 960 0. 940 0. 939 0. 980 0. 964 0. 017 1.
10、 8%4. 1. 2 废水精密度检验| l “ d 10 , T V , T n V 3b!104! 35 8 2010 M 8 ! null9 null i M 0 h “Volnull35 N onull8Aug. 2010V 3 l 7 _ 9 c ( m g/L) Q 1 2 3 4 5 6 ( ( M ( 6. 211 6. 440 6. 210 6. 233 6. 324 6. 294 0. 076 0. 076 1. 2%4. 2 q _ l “ d 10 | 25 mL“ F 4. 00ug = _ K F S l q b 7null870 mg /Lb l q 9 T : l
11、 q = (FS k “ - k “ ) /F S )100%, V l q 98null5%b5 c i M 0 i l , ) M 0 7 r T z EDTA A ,7 N aOH A a N / T 7 4 bY V E “ l “ ) 7 T _ l “ _ , T l S s Z E + S 1 p , N V ) 7 V 9 T Y l O T , y N L w i l b I D : 1刘艳娟.废水中总磷测定方法的研究 J.唐山学院学报, 2004, 17( 3): 98- 99. 2齐文启,陈光,孙宗光,等.总氮a总氮监测中存在的有关问题 J.中国环境监测, 2005, 2
12、1( 2): 31- 35. 3国家环境保护总局水和废水监测分析方法编委会编.水和废水监测分析方法(第四版) M .北京:中国环境科学出版社, 2002.(上接第 46页 )3 ) “ C F y , p v P ,p C 1 s B b ? V % ) ) & p ) r q A 4 , & p l ) 4 3 b I D : 1金相灿, 程振华, 徐南妮,等. 有机化合物污染化学, , 有毒有机物污染化学 M .北京: 清华大学出版社,1990: 22- 24. 2朱利中,徐霞,胡松,等.西湖底泥对水中苯胺a苯酚的吸附性能及机理 J.环境科学, 2000, 21( 2): 28- 31.
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14、: 4- 6. 6苏槟楠,徐宏英,王慕华, 等.高效苯酚降解菌的筛选及其降酚性能 J.科学技术与工程, 2008, 8 ( 10): 1671-1819. 7徐玉泉,张维,陈明, 等.一株苯酚降解菌的分离和鉴定 J.环境科学学报, 2000, 20( 4): 450- 455. 8 Furukaw a K. Engineering d ioxygenases for efficientdegradation of environmental pollutants J. Curr. Op in. B iotechnullno.l , 2000, 11( 3) : 244- 249. 9 H annaford A. M. , kuek C. . Aerob ic batch degradationof phenol using im obilized Pseudomonas pu tida J . Journal ofIndustrialM icrobiology and B iotechnology, 1999, 22 ( 2): 121-126. 10刘兴平.苯酚降解菌的分离及降解特性研究 J.环境保护科学, 2008, 34( 2): 38- 40. 11国家环境保护总局.水和废水监测分析方法 M .第四版.北京:中国环境科学出版社, 2002: 210- 213.!105!
