Fruit and vegetable products — Determination of tin content — Method using flame atomic absorption spectrometry
水果和蔬菜产品——锡含量的测定——方法采用火焰原子吸收光谱法
发布日期:
2004-10-01
ISO 17240:2004规定了一种原子吸收光谱法,用于测定浓度范围为10 mg/kg至500 mg/kg的水果和蔬菜产品中的锡含量。这是一种快速的方法,尤其适用于罐头水果和蔬菜中锡的常规测定。该方法适用于规定量的样品,最大总干物质含量为30%的产品。总固体含量较高的产品在用去离子水进行相应稀释后,可使用少量样品进行分析。
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.