KS H ISO 8294-2007 Animal and vegetable fats and oils－Determination of copper iron and nickel contents－Graphite furnace atomic absorption method《动植物油脂 铜、铁和镍含量的测定 石墨炉原子吸收法》.pdf

1、 KS H ISO 8294 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS , KS H ISO 8294 ：2007 (2012 ) 2007 7 26 http:/www.kats.go.krKS H ISO 8294：2007 : ( ) ( ) () () () ( ) : (http:/www.standard.go.kr) ： : 2002 9 30 : 2007 7 26 ：2012 12 28 ： 20120814 ： ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS H ISO 8294

2、2007 ii 1 1 2 1 3 .1 4 .1 4.1 1 4.2 .1 4.3 2 4.4 2 4.5 Nb(NO ) 3 5 2 4.6 n .2 4.7 .2 5 .3 5.1 3 5.2 .3 5.3 .3 5.4 3 5.5 .3 5.6 3 5.7 .3 6 3 7 3 8 3 8.1 4 8.2 .4 8.3 .5 9 .5 10 6 10.1 .6 10.2 .6 11 .6 A() 8 i KS H ISO 8294：2007 ii 1994 ISO 8294, Animal and vegetable fats and oilsDetermination of cop

3、per, iron, and nickel contentsGraphite furnace atomic absorption method , . ISO 8294 ISO/TC 34 (SC 11) . A . KS H ISO 8294：2007 (2012 ) , Animal and vegetable fats and oils Determination of copper, iron and nickel contents Graphite furnace atomic absorption method 1 , . 2 . . ( ) . KS H ISO 661, KS

4、M ISO 3696：2005, 3 . . 4 , KS M ISO 3696 2 . 4.1 . ( 1077) Merck(D1600 Darmstadt, Germany) 1 ) . 4.2 (5.1 ) . . 1) ISO .KS H ISO 8294：2007 Cu, 3 g/kg Fe, 5 g/kg Ni, 5 g/kg . 3 L 1 kg ( 4060 ) . 2 (150 14 .) (/=1/10) . 5/3 . (25 L/min) . . 4.3 (4.2 ) . Cu, 2 mg/kg Fe, 10 mg/kg Ni, 10 mg/kg Continenta

5、l Oil Company(Ponca City, Oklahoma, USA)(, 5 000 mg/ kg) Merck(D-1600 Darmstadt. Germany)(1000 mg/kg) 1) . 4.4 (4.2 ) (4.3 ) . Cu, 0.05 mg/kg；0.1 mg/kg；0.2 mg/kg Fe, 0.25 mg/kg；0.5 mg/kg；1.0 mg/kg Ni, 0.25 mg/kg；0.5 mg/kg；1.0 mg/kg 4.5 Nb(NO 3 ) 5 1 L 1 000 mg . “ AAS ” Alfa Division(152 Andover Str

6、eet, Danvers, MA 01923, USA)(code 88083) 1) . 4.6 n . 4.7 99.99 % . (purge) . 2 300 . 2 KS H ISO 8294：2007 5 . 5.1 20 mL 50 mL . c(HNO 3 ) = 1 mol/L 80 . 5.2 20 L 100 L 5.3 5.4 (1502) . 5.5 “ ” “ ” (0.2 .) . 5.6 (5.5 ) . 5.7 . 6 . KS H ISO 5555 . 7 KS H ISO 661 . . 8 . , 2 3 KS H ISO 8294：2007 . 8.1

7、 8.1.1 (5.5 ) . 8.1.2 , , , . . ：324.7 nm ：302.1 nm ：232.0 nm 8.1.3 (5.5 ) (5.6 ) 1 . 1 1 . , ( n) 1 ：2(m/m) . (5.7 ) . . 2 . . (4.5 ) 100 L . 100 60 2 700 5 . 300 L . 2 700 ( ). 1 s s mL/min Cu 1 2 900 2 700 50 1 30 5 300 50 Fe, Ni 1 2 1 200 2 700 50 1 30 5 300 50 8.1.4 20 L n (5.3 ) . n . 8.2 4 KS

8、 H ISO 8294：2007 8.2.1 , (4.2 ) (4.4 ) 60 (5.4 ) 15 . 8.2.2 4.4 (4.2 ) . 8.2.3 . 8.3 8.3.1 . 8.3.2 (4.2 ) 20 L . 8.3.3 (4.4 ) 3 1 20 L . . 8.3.4 8.3.4.1 40 (8.2 ) 20 L . 8.3.4.2 40 1 2 ( 20； 60 ； 0 mL/min) . . 1 (8.2) 20 L . . 1 . ( ) (8.2 ) (4.2 ) (8.2.2 ). 8.3.5 (mg/kg) (8.3.3 ) . . 9 5 KS H ISO 8

9、294：2007 9.1 . 9.2 , . kg mg . 10 1984 (IUPAC) ISO 5725 . 32 , . , . 95 % . 10.1 2 2 , r . r 2 . 10.2 2 3 R . 11 . ( ) . . 6 KS H ISO 8294：2007 2 (r ) ：mg/kg w r Cu w Cu 0.2 0.0100.14 Cu w 0.0080.11 Cu w Fe w Fe1.0 0.0770.08 Fe w 0.0260.20 Fe w Ni w Ni 1.0 0.0560.13 Ni w w mg/kg . 3 (R ) ：mg/kg R Cu

10、 w Cu 0.2 0.0080.36 Cu w 0.0030.49 Cu w Fe w Fe 1.0 0.0400.48 Fe w 0.0310.54 Fe w Ni w Ni 1.0 0.0270.44 Ni w w mg/kg . 7 KS H ISO 8294：2007 8 A () 1 KS H ISO 5555, 2 ISO 5725：1986, Precision of test methodsDetermination of repeatability and reproducibility for a standard test method by inter-laborat

11、ory tests , 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS H ISO 8294 ：2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Animal and vegetable fats and oils Determination of copper, iron and nickel contents Graphite furnace atomic absorption method ICS 67.200.10 Korean Agency for Technology and Standards http:/www.kats.go.kr