KS M ISO 23470-2008 Soil quality-Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution《土质 用三氯六氨基钴溶液测定有效阳离子.pdf

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KS M ISO 23470-2008 Soil quality-Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution《土质 用三氯六氨基钴溶液测定有效阳离子.pdf_第1页
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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 23470 KS M ISO 23470:2008 2008 12 23 http:/www.kats.go.krKS M ISO 23470:2008 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2008 12 23 2008-0928 : : ( 02-509-7266) (http:/www.kats.go.kr). 10 5 , . KS M ISO 23470:2008 i .1 1 1 2 1 3 1 4 2 4.1 2 4.2 C

2、o(NH3)6Cl3, 0.016 6 mol/L .2 4.3 .2 4.4 (40 g/L ) .2 4.5 (Tashiro) 2 4.6 2 4.7 , 33 %( )2 4.8 (H2SO4), 0.025 mol/L 2 4.9 ( ).2 4.10 (Al3+, Ca2+, Fe2+, K+, Mg2+, Mn2+, Na+), 1.000 g/L.2 5 3 5.1 3 5.2 3 5.3 50 mL .3 5.4 (end-over-end shaker) .3 5.5 .3 5.6 3 5.7 3 5.8 3 5.9 .3 5.10 (ICP-AES) 3 6 4 6.1

3、.4 6.2 4 6.3 CEC 4 6.4 .7 7 .9 8 (Validation)9 A( ) CEC .10 B( ) .14 16 KS M ISO 23470:2008 Soil quality Determination of effective cation exchange capacity (CEC) and exchangeable cations using a hexamminecobalt trichloride solution 2007 1 ISO 23470, Soil quality Determination of effective cation ex

4、change capacity(CEC) and exchangeable cations using a hexamminecobalt trichloride solution , . 1 (CEC) (Al3+, Ca2+, Fe2+, K+, Mg2+, Mn2+, Na+) . pH pH CEC . , pH CEC . KS I ISO 11464 . ( , ) A . 2 . . ( ) . KS I ISO 11464, 3 (202) (605) . CEC . KS M ISO 23470:2008 2 . (ICP-AES) . 1 . 2 , CEC . . 4 .

5、 4.1 0.5 S/cm . 4.2 Co(NH3)6Cl3, 0.016 6 mol/L 700 mL (4.1) 1 L 4.458 g . . - 1) . 4.3 (: , ) 4.4 (40 g/L ) 4.5 (Tashiro) 95 1 000 mL 2 g 1 g . 4.6 95 1 000 mL 1 g . 4.7 , 33 %( ) 4.8 (H2SO4), 0.025 mol/L 4.9 ( ) 4.10 (Al3+, Ca2+, Fe2+, K+, Mg2+, Mn2+, Na+), 1.000 g/L 1) - . , ISO . KS M ISO 23470:2

6、008 3 , . 5 . . 5.1 0.1 % . 5.2 75 mL 100 mL . 5.3 50 mL 0.25 mL . 5.4 (end-over-end shaker) / (suspension) , (202) . 5.5 . CEC , (6.3 ). 5.6 . 20 4 000 r/min , . 5.7 . 5.8 5.9 10 mm (path-length) 380 nm 475 nm . 5.10 (ICP-AES) KS M ISO 23470:2008 4 6 6.1 KS I ISO 11464 . Q ( cmol) , Q/10 Q/3 ( 1).

7、1 (4.2) 50 mL CEC, cmol/kg 2.5 2.5 5 5 10 10 32 32 64 , g 10 10 5 2.5 1.25 (KS I ISO 11464 ) 0.1 % (5.2) . 6.2 50 mL (4.2) (5.4) (605) . (5.5) (5.6) . . 24 . . . 6.3 CEC 6.3.1 6.3.1.1 10 mL (6.2) . (4.1) 200 mL . (4.3) . 40 mL (4.4) (4.5) . 1 cm . (4.6) . . 10 mL (4.7) 30 150 mL . . . (4.8) . . , 0.

8、1 mL . KS M ISO 23470:2008 5 (4.9) 5 mg . 6.95 mL 7.35 mL ( 7.15 mL ). 10 mL . (4.2) . 6.3.1.2 CEC (cmol/kg) . mVcVVT=2100502)(12 (1) V2 : (mL) V1: (mL) c : (mol/L) V : (mL) m : (g) . 10 mL (4.2) 5 mL (4.8) 9.7 mL 10.3 mL ( 10.0 mL ). 6.3.2 6.3.2.1 475 nm . . , 4.2, 4.2 1/5, 2/5, 3/5, 4/5 . , (4.1)

9、(4.2) . (optical density) . . (q) mol/L 4.2 . 6.3.2.2 . (qb) mol/L 4.2 . KS M ISO 23470:2008 6 6.3.2.3 475 nm . , CEC . 475 nm 380 nm . (OD: Optical Density) R1 OD(475)/OD(380) 8.13 . R2 OD(475)/OD(380) 0.2 . 0.05 mol/L . X1 X2 475 nm 380 nm , 475 nm . )/()(OD211221RRRXRX = (2) , . (q ) mol/L 4.2 .

10、6.3.2.4 CEC m (g) V (mL) CEC . CEC (300qV)/m(cmol/kg) (3) . CEC (300q V)/m(cmol/kg) (4) , CEC 300(q-qb)V/m(cmol/kg) (5) . CEC 300(q -qb)V/m(cmol/kg) (6) 6.3.3 6.3.3.1 . CEC . 6.3.3.2 6.4.5 . 6.3.3.3 CEC c mol/L (c) . cKS M ISO 23470:2008 7 mg/L , c c/58 933 . c 0 mol/L , . q (c0 c) (7) cb (6.3.2.1 )

11、 mol/L , . qb (c0 cb) (8) m (g) V (mL) (3) (5) . 6.4 6.4.1 (ICP-AES) Al3+, Ca2+, Fe2+, K+, Mg2+, Mn2+, Na+ . , / . 6.4.2 (4.2) ( 0) . CEC (6.4.3 ). , 2 (4.10) 500 mL . 2.229 g , (4.1) . ( 3, 2). 2 ( 3) ( 4.10)mL mg/L cmol+/kg Al3+20 40 8.895 Ca2+200 400 39.94 Fe2+10 20 1.432 K+20 40 2.046 Mg2+10 20

12、3.292 Mn2+10 20 1.456 Na+20 40 3.480 1 (cmol+/kg) (V/m) 20 . 2 . KS M ISO 23470:2008 8 50 mL 3 100 mL 0 2 . 25 mL 3 100 mL 0 , 1 . 6.4.3 CEC 0 . . 3 1 000 mL (4.1) . 3 g cmol+/kg 0 4.458 100.00 1 3.789 85.00 2 2.898 65.00 3 2.229 50.00 cmol+/kg 20( 2.5 g/ 50 mL) CEC . 6.4.4 ( 0 3), , . , . Fe2+, K+,

13、 Mn2+, Na+ . , / , . 4 . 4 nm Al3+396.152 Ca2+184.006 422.673 Fe2+259.940 K+766.490 Mg2+285.213 Mn2+259.373 Na+588.995 KS M ISO 23470:2008 9 0 3 . . , . 6.4.5 , . . 1/2 ( 0 3). . / . ( 0 3), , . . , / , . . , 241.765 nm . 7 . a) b) c) d) 8 (Validation) B KS M ISO 23470:2008 10 A ( ) CEC (CEC) 7 . CE

14、C( A.1 ) (KS I ISO 11260 ) . ( A.1 A.4 ). . NF X31-130 CEC pH CEC ( A.2 A.3 ). X: CEC, cmol+/kg Y: CEC(KS I ISO 11260 ), cmol+/kg y 0.977 x A.1 48 ( ) CEC KS M ISO 23470:2008 11 X: CEC, cmol+/kg Y: CEC(NF X31-130 ), cmol+/kg y 0.763 x pH 7 pH 7 A.2 48 ( ) CEC KS M ISO 23470:2008 12 X: CEC, cmol+/kg

15、Y: CEC(NF X31-130 ), cmol+/kg y 0.989 x pH 7 pH 7 A.3 48 ( ) CEC CEC, pH(KS I ISO 10390), (KS I ISO 14235) CEC KS M ISO 23470:2008 13 A.1 ( ) CEC (Cohex) (AmAc) PA VA 576 510 w-222 w-211 w-136 Goshi , g/kg 1.38 1.92 13.06 29.39 120.48 60.61 188.64 64.67pH( ) 6.7 6.8 5.9 5.7 4.8 4.8 5 6.3 CEC , cmol/

16、kg 25.6 12.3 18.1 20.2 35.8 25.6 47.8 36.1 Ca(AmAc), cmol/kg 3.7 2.65 0.2 1.4 0.45 4.65 1 14.15 Na(AmAc), cmol/kg 0.24 0.35 0.31 0.09 0.09 0.16 0.23 0.05 Mg(AmAc), cmol/kg 2.4 0.96 0.06 0.38 0.38 0.41 0.71 3.22 K(AmAc), cmol/kg 0.32 0.14 0.26 0.6 0.49 0.85 0.54 0.9 (Ca Na Mg K), cmol/kg 6.66 4.1 0.8

17、3 2.47 1.41 6.07 2.48 18.32R /CEC(AmAc) 0.26 0.33 0.05 0.12 0.04 0.24 0.05 0.51 CEC , cmol/kg 6.8 3.5 3.5 4.3 2.6 2.9 6 18.1 Ca(Cohex), cmol/kg 2.36 1.63 0.12 0.88 0.36 2.29 0.92 12.89 Mg(Cohex), cmol/kg 1.74 0.64 0.03 0.24 0.29 0.26 0.63 2.89 K(Cohex), cmol/kg 0.21 0.08 0.15 0.46 0.27 0.45 0.37 0.5

18、5 Na(Cohex), cmol/kg 0.25 0.32 0.28 0.09 0.08 0.14 0.22 0.05 Al(Cohex), cmol/kg 0.15 0.12 0.41 0.11 1.63 0.58 3.37 0.07 H(Cohex), cmol/kg 0.05 0.05 0.05 0.05 0.36 0.24 0.2 0.05 (Ca Na Mg K Al H), cmol/kg 4.7 2.79 0.99 1.67 2.99 3.96 5.71 16.45R /CEC(Cohex) 0.69 0.80 0.28 0.39 1.15 1.37 0.95 0.91 X CEC AmAc, cmol/kg Y CEC Cohex, cmol/kg A.4 ( ) CEC (Cohex) (AmAc) KS M ISO 23470:2008 14 B ( ) ISO/TC1

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