NY/T 1201-2006
ActiveDetermination of copper, iron and zinc content in vegetables and derived products
蔬菜及其制品中铜、铁、锌的测定
Catalogue
前言 → 1 范围 → 2 原理 → 3 试剂 → 4 仪器与设备 → 5 分析步骤 → 6 结果计算 → 7 精密度 Foreword → 1 Scope → 2 Principle → 3 Reagents → 4 Apparatus → 5 Analytical procedure → 6 Calculation of results → 7 Precision
Scope
This standard specifies the method for determination of copper, iron and zinc in vegetables and derived products. This standard is applicable to the determination of copper, iron and zinc in vegetables and derived products.
本标准规定了蔬菜及其制品中铜、铁、锌的测定方法。本标准适用于蔬菜及其制品中铜、铁、锌的测定。
Keywords
Application Summary AI generated
Food testing laboratories and quality inspection agencies use this standard to determine the content of copper, iron, and zinc in vegetables and derived products. It provides a unified analytical method for food safety and quality control, ensuring comparability and accuracy of results. This standard is important for evaluating nutritional value and monitoring heavy metal contamination in vegetable products.
食品检测实验室和质检机构使用该标准来测定蔬菜及其制品中的铜、铁、锌含量。该标准为食品安全和质量控制提供了统一的检测方法，确保检测结果的可比性和准确性。它对于评估蔬菜产品的营养价值及监控重金属污染具有重要意义。
AI Summary AI generated
This standard specifies an atomic absorption spectrophotometric method for determining copper, iron, and zinc in vegetables and derived products. After acid digestion, the sample is measured at 324.8 nm, 248.3 nm, and 213.8 nm respectively, and quantified against a standard series. The standard details reagent preparation, standard solution preparation, and analytical procedures, making it suitable for testing vegetables and their products.
本标准规定了蔬菜及其制品中铜、铁、锌含量的原子吸收分光光度测定方法。样品经酸消解后，在原子吸收分光光度计上分别于324.8 nm、248.3 nm和213.8 nm处测定吸光度，与标准系列比较定量。标准详细列出了试剂配制、标准溶液制备及操作步骤，适用于蔬菜及其制品的检测。
Key Sentences extracted from text
样品经酸消解后，导入原子吸收分光光度计，测试液中铜、铁、锌原子化后分别吸收324.8 nm、248.3 nm、213.8 nm共振线，在一定浓度范围内，吸光度(值)与其浓度成正比，与标准系列比较定量。
除非另有说明，在分析中使用优级纯试剂和一级以上纯水。
准确称取1.0000 g±0.0001 g光谱纯金属铜于烧杯中，加40 mL盐酸(3.1)及50 mL水，加热煮沸，放冷后转移至1000 mL容量瓶中，用水稀释至刻度。
准确称取1.0000 g±0.0001 g光谱纯金属铁于烧杯中，加40 mL盐酸(3.1)及50 mL水，加热煮沸，放冷后转移至1000 mL容量瓶中，用水稀释至刻度。
准确称取1.0000 g±0.0001 g光谱纯金属锌于烧杯中，加10 mL盐酸(3.1)稍加热溶解，放冷后转移至1000 mL容量瓶中，用水稀释至刻度。
After acid digestion, the sample is introduced into an atomic absorption spectrophotometer; the atomized copper, iron, and zinc in the test solution absorb resonance lines at 324.8 nm, 248.3 nm, and 213.8 nm respectively, and within a certain concentration range, the absorbance (value) is proportional to its concentration, and quantification is performed by comparison with a standard series.
Unless otherwise specified, use analytical grade reagents and water of at least grade one purity in the analysis.
Accurately weigh 1.0000 g ± 0.0001 g of spectroscopically pure metallic copper into a beaker, add 40 mL of hydrochloric acid (3.1) and 50 mL of water, heat to boiling, cool, transfer to a 1000 mL volumetric flask, and dilute to the mark with water.
Accurately weigh 1.0000 g ± 0.0001 g of spectroscopically pure metallic iron into a beaker, add 40 mL of hydrochloric acid (3.1) and 50 mL of water, heat to boiling, cool, transfer to a 1000 mL volumetric flask, and dilute to the mark with water.
Accurately weigh 1.0000 g ± 0.0001 g of spectroscopically pure metallic zinc into a beaker, add 10 mL of hydrochloric acid (3.1), heat slightly to dissolve, cool, transfer to a 1000 mL volumetric flask, and dilute to the mark with water.