KS H ISO 13276-2012 Tobacco and tobacco products－Determination of nicotine purity－Gravimetric method using tungstosilicic acid《烟草和烟草制品 烟碱纯度的测定 使用钨硅酸的重量分析法》.pdf

1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS H ISO 13276 KS H ISO 13276:2012 2012 9 19 http:/www.kats.go.krKS H ISO 13276:2012 : ( ) ( ) () () ( ) : (ISO/TC126) () ( ) () KT&G () KT&G () () ( ) KT&G : (http:/www.standard.go.kr) ： ：2012 9 19 2012-0452 ： ：(ISO/TC126) ( 02-509-7266) (http:/www.kats.go.

2、kr). 10 5 , . KS H ISO 13276:2012 i ii 1 1 2 .1 3 1 4 .2 5 2 5.1 2 5.2 3 6 .4 7 4 8 .5 A( ) 6 KS H ISO 13276:2012 ii ISO(the International Organization for Standardization) (ISO ) . ISO . . ISO . ISO (IEC) . . 75 % . ISO/TC 126 . A . KS H ISO 13276:2012 iii 1997 1 ISO 13276, Tobacco and tobacco prod

3、ucts Determination of nicotine purity Gravimetric method using tungstosilicic acid . KS H ISO 13276:2012 Tobacco and tobacco products Determination of nicotine purityGravimetric method using tungstosilicic acid 1 (tungstosilicic acid) . , . 2 . . 3 . 3.1 100 mL 12 g dodeca-tungstosilicic acid(SiO212

4、WO3 26H2O) . 4H2O SiO210WO3 3H2O 4H2O SiO212WO320H2O . 3.2 , 20 %(V/V) 1.18 g/mL 20 mL 100 mL . 3.3 , HCl, 0.1 %(V/V) (3.2) 5 mL 1 L . 3.4 , (C10H14N2) 0.1 mg/mL KS H ISO 13276:2012 2 (4.1) 2.5 mg 25 mL . 4 . 4.1 , 25 mL . 4.2 , 250 mL . 4.3 4.4 4.5 , . 4.6 4.6.1 2 (40 m 100 m) 4.6.2 ( ) 4.6.3 (vacu

5、um source) 4.6.4 , (1205) . 4.7 4.7.1 1)4.7.2 4.7.3 , 600 . 4.7.4 (furnace), 600 ( ). 4.8 , 0.1 mg . 5 5.1 (4.4) 5 250 mL (4.2) 0.1 g ( ) 0.000 1 g . 100 mL , 20 % (3.2) 2 mL . . 1) Whatman No. 42 . , ISO . KS H ISO 13276:2012 3 (3.1) 15 mL . (4.3) . , . . 5.2 5.2.1 5.2.2 . 5.2.1 (4.6.1) (1 mg) 120

6、(4.6.4) . (4.5) . (4.6.1) 0.000 1 g (m1), (4.6.2) (4.6.3) . 15 mL (3.3) . . (3.3)(400 mL .) , , . 120 (4.6.4) 3 . 0.000 1 g (m2). 1 , . (1 mg) . 5.2.2 (4.7.1) . 15 mL (3.3) . . (3.3)(400 mL .) , (3.4) , . (1 mg) (4.7.3) (4.7.4) 600 (4.7.2) . (4.5) . (4.7.2) 0.000 1 g (m1), . , (4.7.3) . . . (4.5) 0.

7、000 1 g (m2). (1 mg) . , 600 (4.7.4) . . KS H ISO 13276:2012 4 6 , NP . 100)(NP12=mCmm m1 ： (mg) m2 ： (5.2.1) (5.2.2) (mg) C ： 0.101 2： (5.2.1) 0.114 1： (5.2.2) m ： (mg) (ms) (m) . ss2.162Mmm = Ms： , 5 . 7 , 2 17 1993 . , (r) (R) . 2 , 20 1 (r) . , 20 1 (R) . 1 . 1 % r R ( 99 % ) 98.8 2.2 3.8 96.7 1

8、.6 3.2 KS H ISO 13276:2012 5 r R . R . 2.9, 3.3 8 . , . . KS H ISO 13276:2012 6 A ( ) ISO/IEC Guide 25： 1990, General requirement for the competence of calibration and testing laboratories 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS H ISO 13276:2012 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Tobacco and tobacco products Determination of nicotine purity Gravimetric method using tungstosilicic acid ICS 65.160