Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: BS EN 12014-2-TC:2020
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Tracked Changes (Redline) - Foodstuffs - Determination of nitrate and/or nitrite content Part 2: HPLC/IC method for the determination of nitrate content of vegetables and vegetable products
• Chỉ số phân loại Quốc tế (ICS) / By field: 67.080.20 - Rau và sản phẩm chế biến
• Số trang / Page: 55

Phạm vi áp dụng / Scope of standard

This European Standard specifies a high-performance liquid chromatographic (HPLC) and an ion chromatographic (IC) method for determination of the nitrate level in vegetables and vegetable products. This method is applicable for samples with a content of 25 mg/kg or greater.

It has been validated on naturally contaminated and spiked samples as beetroot juice with nitrate mass fractions of 194 mg/kg and 691 mg/kg, pureed carrots with nitrate mass fractions of 26 mg/kg and 222 mg/kg and with iceberg lettuce with nitrate mass fractions of 623 mg/kg and 3 542 mg/kg.