1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS H ISO 11212 2 2： KS H ISO 11212 2:2008 2008 11 7 http:/www.kats.go.krKS H ISO 11212 2:2008 : ( ) ( ) KT&G ( ) : (http:/www.standard.go.kr) ： ： 2003 11 28 ： 2008 11 7 2008-0741 ： ： ( 025097266) (http:/www.kats.go.kr). 10 5 , . KS H ISO 11212 2:2008 2： Star
2、ch and derived products Heavy metals content Part 2： Determination of mercury content by atomic absorption spectrometry 1997 ISO 11212 2, Starch and derived products Heavy metals content Part 2： Determination of mercury content by atomic absorption spectrometry , . ISO 11212 2 ISO/TC 93 . A . 1 (col
3、d-vapour) ( ) . . . . 2 . . ( ) . KS A ISO 5725( ), ( ) 3 . 3.1 kg g (Hg) 4 KS H ISO 11212 2:2008 2 . (II) (Hg2) . , . 253.7 nm . . 5 , . 5.1 (20 1.38 g/mL) 5.2 30 %(V/V) 5.3 (sodium borohydride solution) (6.3) . 5.4 ( ) (6.3) . 5.5 (6.3) . 5.6 , 1 g/L . . 5.7 (5.6) 5 . 100 mL (5.1) 7.5 mL . 6 ( ) .
4、 . 6.1 ( 1 ) KS H ISO 11212 2:2008 3 , (6.1.1 6.1.3) . 6.1.1 200 mL (6.1.3) . 6.1.2 350 mm (6.1.1) . 6.1.3 250 mL (6.1.1) . . (6.1.1) (acid vapours) . 6.2 5 (6.2.1 6.2.5) . 6.2.1 (bandwidth slit) 0.2 nm . 6.2.2 (correcting device) 6.2.3 10 ms . 6.2.4 / (integrated absorbance signal) . 6.2.5 6.3 (cel
5、l) . 6.4 . 6.5 KS H ISO 11212 2:2008 4 1 7 . . 7.1 . 7.2 6.1 . (6.1.3) 5 g 1 mg . (5.1) 27.5 mL (5.2) 1 mL . 4 . . (201) mL (6.1.1) . . 20 mL . 100 mL . KS H ISO 11212 2:2008 5 (II) . 7.3 5 mL 7.2 . 7.4 (II) (5.4) (5.3) (6.3) (5.7) . (6.2) 253.7 nm . 1 000 mL g . . 7.5 . 8 . kg g w . mw100)(01 1： (7
6、.4) (7.2) (g/L) 0： (7.4) (7.3) (g/L) m： (7.2) (g) 20 g/kg . 9 A . A . 9.1 2 5 % A.1 r . 9.2 KS H ISO 11212 2:2008 6 2 5 % A.1 R . 10 . ( ) . . KS H ISO 11212 2:2008 7 A ( ) 1993 12 . A.1 KS A ISO 5725 . A.1 a LC HC VHC (g/kg) , sr(g/kg) , r 2.8sr(g/kg) , sR(g/kg) , R 2.8sR(g/kg) 7 5 28 49.4 5.4 15.2
7、 18.7 53.0 8 5 31 98.5 10.7 30.3 43.4 122.9 8 5 32 161.5 11.7 33.2 71.8 203.2 a LC ： HC ： VHC ： 2： 135513 7017 (02)60094114 (02)600948878 http:/ KS H ISO 11212 2:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Starch and derived products Heavy metals contentPart 2： Determination of mercury content byatomic absorption spectrometry ICS 67.180.20 Korean Agency for Technology and Standards http:/www.kats.go.kr
