KS H ISO 8151-2006 Dried milk－Determination of nitrate content－Method by cadmium reduction and spectrometry(Screening method)《奶粉 硝酸盐含量的测定 镉还原光谱法(筛选法)》.pdf

1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS 2006 11 29 http:/www.kats.go.krKS H ISO 8151 ()KS H ISO 8151： 2006 (2011 )H ISO 8151： 2006 : ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ： 2001 12 31 ： 2006 11 29 ： 2011 12 29 2011-0652 ： ： ( 02-509-7273) (http:/www.kats.go.kr). 10 5 , . ICS 67.100.10 KS

2、 () H ISO 8151： 2006(2011 ) Dried milk Determination of nitrate content Method by cadmium reduction and spectrometry(Screening method) 1987 1 ISO 8151 Dried milk Determination of nitrate content Method by cadmium reduction and spectrometry(Screening method) , . ISO 8151 ISO/ TC 34 . (IDF) (AOAC) , .

3、 1. . 2. . . KS H ISO 707 KS L ISO 648 KS L ISO 835 1 1： KS L ISO 1042 3. . 3.1 , kg (NO3) mg . . 4. , . . (sulfanylamide) N-1- 2 (N-1-naphthyl ethylenediamine dihydrochloride) 538 nm . 5. . . 5.1 5.1.1 7 (ZnSO4 7H2O) 267.5 g 500 mL . 5.1.2 3 (K4Fe(CN)6 3H2O) 86 g 500 mL H ISO 8151： 2006 2 . 5.2 2 (

4、CH3COO)2Cd 2H2O 0.5 g (CH3COOH) 1 mL 100 mL . 5.3 10 mL 2 g . 5.4 5.4.1 1 (20 1.19 g/mL) 450 mL 1 000 mL . 5.4.2 2 (20 1.19 g/mL) 5 mL 75 mL (NH2C6H4SO4NH2) 0.5 g 100 mL . . 5.4.3 3 N-1- 2 (N-1-naphthyl ethylenediamine dihydrochloride) 0.1 g 100 mL . . 1 . 5.5 L 0.03 g (NO3) 5.5.1 (KNO3) , 2 1 mg 11

5、0120 , 489.2 mg 1 000 mL . 5.5.2 (5.5.1) 10 mL 100 mL 100 mL . . 1 mL (NO3) 30.0 g . 5.6 pH 9.69.7 1 000 mL 600 mL , 20 1.84 g/mL, 98 %(m/m) H2SO4 17 mL . 200.91 g/mL, 25 %(m/m) NH3 100 mL . pH 9.69.7 . 5.7 (1) (1) Fluka 85390 . ISO . 6. ： . . 6.1 14 cm , 538 nm . 6.2 200 g . 6.3 , (6.2) 25 mL . 6.4

6、 6.5 15 cm . 6.6 500 mL 6.7 100 mL 1 000 mL KS L ISO 1042 B . 6.8 5 mL, 10 mL, 15 mL 20 mL KS L ISO 648 A KS L ISO 835 1 H ISO 8151： 2006 3 . 7. KS H ISO 707 . 8. 8.1 . 8.2 10 g 0.01 g 500 mL (6.6) . 8.3 8.58.7.3 . 8.4 8.4.1 5 500 mL (6.6) 10 g , (5055 ) 136 mL, 131 mL, 126 mL, 121 mL 116 mL . (5.7)

7、 0.1 mL . 5 (5.5) 0 mL, 5 mL, 10 mL, 15 mL 20 mL . 8.4.2 8.5.28.7.3 ( ) . 8.4.3 g ( 0 g, 150 g, 300 g, 450 g 600 g) . 8.5 8.5.1 (5055 ) 136 mL (5.7) 0.1 mL . 8.5.2 (5.1.1) 12 mL (5.1.2) 12 mL , . (5.6) 40 mL (6.5) . , . 8.6 8.6.1 (8.5.2) 20 mL (6.3) (5.2) 0.5 mL . 8.6.2 (5.3) 0.5 mL 5 . 200 g 5 . 8.

8、7 8.7.1 (8.6.2) 10 mL (6.8) 100 mL . 8.7.2 1 (5.4.1) 5 mL 2 (5.4.2) 5 mL 5 . 8.7.3 3 (5.4.3) 2 mL 5 . . H ISO 8151： 2006 4 8.7.4 15 538 nm (8.3) . 1.5 , 8.5 . 9. 9.1 kg (NO3) mg , . 01mm m0： (g) m1： 8.7.4 (8.4) (g) 1 mg/kg . 9.2 2 30 mg/kg 6 mg/kg , 30 mg/kg 20 % . 10. . . ( ) 153787 1 92 3(13) (02)26240114 (02)2624 01489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKorean Agency for Technology and Standards http:/www.kats.go.kr KS H ISO 8151： 2006 Dried milkDetermination of nitrate content Method by cadmium reduction andspectrometry(Screening method)ICS 67.100.10