DS EN 12014-2:1997 Foodstuffs - Determination Of Nitrate And/Or Nitrite Content - Part 2:Hplc/Ic Method For The Determination Of Nitrate Content Of Vegetables And Vegetable Products Describes a high performance liquid chromatography (HPLC)/ion-exchange high performance liquid chromatography (IC) method for the determination of nitrate contents of vegetables and vegetable products