1、 () 2 (EN 12014-2:1997, IDT) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC)EN 12014-22014, - 1.092 . 1.22009 . -, . , , 1 - ( ) , 52 (-)3 , ( 30 2014 . 68-) : ( 3166) 00497 ( 3166) 00497 AMBYKGMDRU -4 1 2014 . 848- EN 12014-22014 1 2016 .5 N 12014-2:1997Foodstuffs Deter
2、mination of nitrate and/or nitrite content Part 2: HPLC/IC method for the determination ofnitrate content of vegetables and vegetable products ( . (). 2. - ). CEN/TC 275 . , DIN. (de). , , - . - . (IDT)6 II EN 12014-22014 -, - . () . , - - , 2015 -, III EN 12014-220141 .12 13 .14 15 36 37 .58 59 .6
3、() 7 () 11 () 1213IV EN 12014-22014 () 2 Foodstuffs. Determination of nitrate and/or nitrite content.Part 2. HPLC/IC method for the determination of nitrate content of vegetables and vegetable products1 - () (). 50 3000 /.2 , - . - . , , . , - .EN 12014-1 Foodstuffs. Determination of nitrate and/or
4、nitrite content. Part 1. General considerations( . () . 1. )EN ISO 3696 Water for analytical laboratory use Specification and test methods (ISO 3696:1987)( . )3 , - - - - 1.4 N ISO 3696. .1 EN 12014-22014 201601014.1 .4.2 .4.3 , c(2S4) = 0,0125 /3 1000 3, 800 3, 20 3 96 % 1,84 /3. , - , . 33 3 1000
5、3, 500 3. , .4.4 I 150 (II) K4Fe(CN)6c215 3H2O , 1000 3, -. . 1 .4.5 II 200 (Zn(CH3(COO)2c215 2H2O) - , 30 3 , 1000 3.4.6 -, c114 (NO3)=1/3 1,6307 , 0,1 , 1000 3. 15 3 96 % 1,84 /3, -, , -. 1 4 C. .4.7 -, I c114 (NO3) = 50 /3 5 3 4.6 100 3, , 5.4. - . .4.8 -, II c114 (NO3)=5/3 5 3 4.6 1000 3, , 5.4.
6、 - .4.9 , , (Na2CO3) 29,676 - (NaHCO3) 18,482 , 1 , 1000 3, . 0,28 /3 0,22 /3. 2 4 C.4.10 50 3 - 4.9 5 3, , . - 0,0028 /3 0,0022 /3.4.11 10 (K2HPO4) 1000 3.503, -2 EN 12014-22014 , . 3,0 85 %. - 5.4.5 , -, :5.1 .5.2 .5.3 .5.4 0,45 .5.5 .5.6 , - RP C18.5.7 ,:5.7.1 , , -, , , - , , .5.7.2 , , -, Dione
7、x Ion Pacc210AS 4A Dionex Ion Pacc210AS 41), - , - ( res =1,3) res res = 1,18ttWWRB RAAB() (),( ) ,( )c45c4305 05,(1) tR(A) ;tR() ;W0,5() ;W0,5() .5.8 , :5.8.1 , , , , , - , , -.5.8.2 , - 5 10 , 250 , 4,6 , , , Lichrosorb NH2c174 2).6 6.1 6.1.1 (, ) (, .). 5.1 5.2.1)Dionex Ion Pacc210AS 4 Dionex Ion Pacc210AS 4 , -. CEN .2)Lichrosorb NH2c210 , . CEN .3 EN 12014-22014 , , - , .6.1.2 (, ) .6.1.3 (, ) , , .6.2 6.2.1 , 6.1.1, 10 ,- 15 , . 500 3. 400 3, 15 . 500 3, . - 5.3, . 6.3.6.2.2 , 6.1.2, 6.3 -, , 25 /3.6.2.3 , 6.1.3, 10 ,-
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