KS H ISO 3946-2008 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method《淀粉和淀粉制品 总磷含量的测定 分光光度法》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS H ISO 3946 KS H ISO 3946:2008 2008 10 14 http:/www.kats.go.krKS H ISO 3946:2008 : ( ) ( ) KT&G ( ) : (http:/www.standard.go.kr) ： ： 2003 11 5 ： 2008 10 14 2008-0659 ： ： ( 025097266) (http:/www.kats.go.kr). 10 5 , . KS H ISO 3946:2008 Starches and derived

2、products Determination of total phosphorus content Spectrophotometric method 1982 1 ISO 3946, Starches and derived products Determination of total phosphorus content Spectrophotometric method , . 1 5 %(m/m) . 2 . . ( ) . KS L ISO 648, KS L ISO 1042, 3 . 3.1 4 (orthophosphates) (phosphates) . (molybd

3、enum blue) (phosphomolybdate) . KS H ISO 3946:2008 2 825 nm . 5 . 5.1 201.84 g/mL, 96 %(m/m) 1 201.38 g/mL, 65 %(m/m) 1 . 5.2 201.38 g/mL, 65 %(m/m) 5.3 50 g/L 48 . 5.4 . 1 000 mL 500 mL (NH4)6Mo7O24 4H2O 10.6 g . 10 mol/L 500 mL . 5.5 10 mol/L 5.6 5.6.1 L 100 mg . (anhydrous potassium dihydrogenort

4、hophosphate) 0.439 3 g 0.5 mg . 1 000 mL . . 1 mL 100 g . 1 (1052) . KS H ISO 3946:2008 3 5.6.2 L 4 mg . (5.6.1) 100 mL 250 mL . . 1 mL 4 g . 6 . . 6.1 50 mL, 100 mL, 200 mL, 250 mL 500 mL KS L ISO 1042 . 6.2 50 mL . 6.3 100 mL . 6.4 1 mL, 2 mL, 5 mL, 10 mL, 15 mL 25 mL KS L ISO 648 . 6.5 15 25 . 6.

5、6 6.7 6.8 . 6.9 10 mm (cell) 825 nm . 6.10 KS H ISO 3946:2008 4 7 2 . 7.1 7 50 mL (6.2) . (6.4) 4 g, 8 g, 12 g, 16 g, 20 g 40 g (5.6.2) 1.0 mL, 2.0 mL, 3.0 mL, 4.0 mL, 5.0 mL 10.0 mL 6 . 30 mL 7 . (5.4) 4 mL (5.3) 2 mL . . 7 10 (6.6) . (6.5) . 50 mL (6.1) . . 6 825 nm (6.9) . g . 7.2 . 7.3 (7.2) 0.5

6、 g 0.2 mg . 0.1 0.7 . ( 1 ). 7.4 (6.3) (7.3) . (5.1) 15 mL . (6.7) . . . (5.2) 1 . 10 mL . 7.5 (7.4) 45 mL . (5.5) pH 7 . (6.1) . KS H ISO 3946:2008 5 . . 7.6 ( 1 ) 50 mL . . (5.4) 4 mL (5.3) 2 mL . 10 (6.6) . (6.5) . 50 mL (6.1) . . 825 nm . g (7.1 ) . 7.7 . 7.8 (7.2) 2 . 8 8.1 (P) . 6100110100VmVm

7、 m0： (7.3) (g) m1： (7.1) (g) V0： (7.5) (mL) V1： (7.6) (mL) (8.2) 2 . . 8.2 (7.2) 2 . 0.2 %(m/m) 2 % KS H ISO 3946:2008 6 0.2 %(m/m) 100 g 0.004 g 9 . . . 1 %(m/m) (7.3 ) g (7.5 ) mL (7.6 ) mL 0.05 0.05 0.10 0.10 0.25 0.25 0.50 0.50 1.00 1.00 2.00 2.00 5.00 0.500 0.500 0.500 0.500 0.250 0.125 0.125 1

8、00 100 100 200 250 250 500 25 10 2 2 2 2 2 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS H ISO 3946:2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Starches and derived products Determination of total phosphorus content Spectrophotometric method ICS 67.180.20