GOST 31707-2012 Foodstuffs Determination of trace elements Determination of total arsenic and selenium by hydride generation atomic absorption spectrometry (HGAAS) after pressure d.pdf

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1、 , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) 31707null2012(EN 14627:2005) . - (EN 14627:2005, MOD) 317072012II, - 1.092 . - 1.22009 . -, . , , , 1 - ( ) - , 52 ()3 , ( 1 2012 . 51) : ( 3166) 00497 ( 3166) 00497 AM BY KG MD - RU UZ 4 29 2012 . 1775- 317072012 - 1 201

2、3 . 5 EN 14627:2005 Foodstuffs Determination of trace elements Determination of total arsenic and selenium by hydride generation atomic absorption spectrometry (HGAAS) after pressure digestion ( . . - -). 1 2 , , , . , , . , - , , - . (en). (MOD). 531822008 ( 14627:2005)6 317072012III , 2014 -, - -

3、, . () - . , - - . 317072012IV1 12 13 23.1 23.2 .23.3 24 24.1 24.2 .24.3 .45 .56 56.1 .56.2 66.3 66.4 77 .78 .79 89.1 89.2 89.3 810 9 () 10 () N 14627:2005, 13 14 317072012V N 14627:2005 , , , ( 1.5), :- , ;- , - . , , - . ( ) .1 2013 07011 - , . , - , .2 * : ISO 5725-12003 ( ) . 1. ISO 5725-22003 (

4、 ) . 2. - 177074 ( 104283, 478888) . -, , , . 2922791 (ISO 835-181) . . 1. 316712012 (N 13805:2002) . . , 1 , - . (), (-) . , , , , .* 1.5. 317072012(EN 14627:2005) . - Foodstuffs. Determination of trace elements. Determination of total arsenic and selenium by hydride generation atomic absorption sp

5、ectrometry (HGAAS) after pressure digestion 31707201223 3.1 - - , - 31671.! , -, . , - . - .3.2 -, , -. 193,7 . , (III) (V) , (V) (III). , , 320 - , . , , - .3.3 , , . - 196,0 . (VI) , - , . 280 - (VI).4 4.1 , . - (. 4.2.8 4.3.6).4.2 4.2.1 ( 30 %, 1,15 /3).4.2.2 ( 65 %, - 1,4 /3).4.2.3 , . 4.2.2 .4.

6、2.4 , . 3170720123 , - . , - (. 6.3.1) - 2 /3. , 2 /3. .4.2.5 , 3 % (-; - ). - 4.2.1 90 3 1000 3. - - , .4.2.6 . 3 - 5 , 100 3. - ( ) . - , .4.2.7 , 100 /3.4.2.8 , 1000 /3. . (As2O3) 1,320 25 3 200 /3. - 20 %, . 1000 3 1 %.4.2.9 , , 4.2.8. 4.2.1 (, 2 3 100 3). :1000 /35/10050 /35 / 505 /31 / 500,1 /3. 5 /3 - 0,6 % , , .4.2.10 , , . - 0,1 /3 . - , , .

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