标准摘要
[中文适用范围]： 本标准规定了测定浓度范围为 10 mg/kg 至 500 mg/kg 的水果和蔬菜产品中锡含量的原子吸收光谱法。 该方法快速，特别适用于被罐头迁移的锡污染的罐装水果和蔬菜中锡的常规测定。 该方法可以用规定量的样品应用于最大总干物质含量为30%的产品。 总固体含量较高的产品可以用去离子水相应稀释后使用较少量的样品进行分析。 注：水果和蔬菜产品中锡的测定方法基于 NMKL 方法 No 126/1988（附录 A 中的参考文献 [1]）。 [外文原描述]： ISO 17240:2004 specifies an atomic absorption spectrometric method for the determination of the tin content of fruit and vegetable products in the concentration range 10 mg/kg to 500 mg/kg. It is a rapid method, especially suitable for routine determinations of tin in canned fruits and vegetables contaminated with tin which has migrated from the can. The method can be applied with the prescribed amount of sample to products with a maximum total dry matter content of 30 %. Products with higher contents of total solids can be analysed using smaller amounts of sample after corresponding dilution with deionized water.
英文名称Fruit and vegetable products — Determination of tin content — Method using flame atomic absorption spectrometry