KS M 0036-2008 General rules for ion-selective electrode method《离子选择电极分析法通则》.pdf

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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M 0036 KS M 0036:2008 2008 12 19 http:/www.kats.go.krKS M 0036:2008 : ( ) ( ) ()MPT ( ) : (http:/www.standard.go.kr) : : 1993 12 31 : 2008 12 19 2008-0927 : : ( 025097301) (http:/www.kats.go.kr). 10 5 , . KS M 0036:2008 General rules for ion-selective ele

2、ctrode method 1 . , pH . 2 . . ( ) . KS M 0001, KS M 0034, , , KS M 0100, KS M 0111, 3 KS M 0001 . 4 | | (Nernst) . azFRTEoE log303.2+= (1) E : (mV) Eo : (mV)( , ) R : molKJ314.8 T : (K) zF : ( ) F : 96 485 C( ) a : KS M 0036:2008 2 zFRT303.2: , pX 1 pX 25 1 59.16 mV, 2 29.58 mV . . a C a : (mol/L)

3、: C : (mol/L) C . CzFRTzFRTEoCzFRTEoElog303.2log303.2log303.2+=+= . log303.2=zFRTEo EO CzFRToEE log303.2+= . 1) , , , . 5 5.1 1 , , , , . 1) () (c) (z) 1/2 (221cz ). KS M 0036:2008 3 1 5.2 (1012 ) mV . pH mV , pH mV , . . 5.3 , , 4 . 1 , 2 . a) b) c) , d) KS M 0036:2008 4 1 ( ) NaKNH4 Ag FLaF3ClAgCl

4、 Ag2S, AgCl BrAgBr Ag2S, AgBr IAgI Ag2S, AgI SCNAgSCN Ag2S CNAgI Ag2S, AgI, Ag2S S2Ag2S AgAg2S pb2PbS Ag2S Cd2CdS Ag2S Cu2CuS Ag2S Hg2AgI Ag2S NO3Ni /NO3ClO4Fe /ClO4Cl /ClBF4Ni /BF4Ca2 /Ca2K /KNH4 / /NH4 a2 /2 NH4pH HSO3pH HCO3pH NO2pH S2Ag2S CNAg2S a . KS M 0036:2008 5 a) b) (A) c) (B) d) e) ( , )

5、a a 2 ( ) 5.4 . . , , , , . , . 5.5 5.6 . a) 1) . KS M 0036:2008 6 2) . 3) . 4) 612 , . b) 1) . 2) , 1 200 . 510 . . 3) . 4) 2) , . . c) 1) . 2) , , , , , , . d) 1) . 2) , , , , , , . e) 1) , . 2) . , . 3) . 6 6.1 . 6.2 , , . . pH . . . 6.3 KS M 0036:2008 7 . a) 1 50 mV , 2 25 mV . b) 10 mV . c) 90

6、% 2 . 5 . d) 108 . 6.4 . a) . 1) 5.6 a) 1), b) 1), c) 1) d) 1) . 2) (251) . e) . b) pX 2 2 , pX . 2EA= (2) A : pX (mV) E : (mV) pX 2 2 2 . 2 pX 2 ( ) : mol/L Cl, S210 310 1Ag, Na, NO3, Br10 410 2CN, FPb2, Cd2, NH410 510 3c) pX 2 2 , . 3 . d) pX 2 2 , , 20 30 . 90 % . e) . 7 7.1 KS M 0036:2008 8 10 1

7、mol/L, 10 410 7mol/L . . 7.2 . . . 7.3 1 mV , , , , . , . . 1 mV 1 4 %, 2 8 % , . 7.4 pH pH . . pH pH , pH . pH . 7.5 , 10 1 2 mV, 2 1 mV , . 3 : mV/pX 0 10 20 30 40 50 1 2 54.20 27.10 56.18 28.09 58.16 29.08 62.13 30.07 60.15 31.07 64.11 32.06 7.6 , , , KS M 0036:2008 9 . . 7.7 , . 7.8 . . . , , ,

8、. ( )potNMk, , . a) 1) N M 3 , . CM , CN . NMNMzzNMzzNMpotNMCCaak =, (3) potNMk,: aM: M aN: N zM: M zN: N CM: M (mol/L) CN: N (mol/L) KS M 0036:2008 10 3 ( ) cM mV18Mz CM . 2) M N 4 , , . CN 7.8 a) . 4 ( ) b) ( ) 5 . 5 M N EM EN , M (mV) (mV) N (mV) M N KS M 0036:2008 11 NNMZZZMMMNpotNMCRTFZEEk= log

9、303.2)(log,ZM ZN , RTFZEEkMMNpotNM303.2)(log,= (4) M N CM CN , NMZZNMpotNMCCk =,log (5) ZM ZN NMpotNMCCk =,log , EM, EN aM, aN potNMk, . , . 7.9 110)/303.2/= zFRTECC . 1 mV 25 1 3.97 %, 2 8.22 % , 1 mV . 8 8.1 , , , . . , KS M 0100 KS M 0111 . 8.2 , pH . , , . 9 9.1 ( ) , KS M 0036:2008 12 . . . , p

10、H . . a) , . pH . b) 2). c) a) , . d) . e) , . f) b) , . pH . g) e) . 1 . , . , . 2 2 . 9.2 ( ), ( ) . , , . . a) x, m, E . E Eo S log x (6) E E Eo S log(x m) (7) E : (mV) Eo : (mV) E : (mV) S : x : (mol/L) 2) . KS M 0036:2008 13 m : (mol/L) (6) (7) . mSEx =1101 (8) ASE=1101 A . (m) (E) , . . 1) 9.1 a) e) 3). 2) V mL 4) 100 mL , 1) . 3) 100 1 000 5). 4) V mL (100 mL) 3 , 4). 5) 3) 1 mL, 2 mL, 3 mL . 6) 2) (E1, E2, E3) . 7) 1) 6) (S) (E1, E2, E3) (A1, A2, A3) . 8) . VCAx =11

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