期刊论文

中文

食品与机械

1003-5788

2011

27

2

68-70

10.3969/j.issn.1003-5788.2011.02.020

本校为第一机构

建立仅用水作为溶剂提取粉丝中的铝，再以铬天青S法分析的方法。以铝提取率为指标，考察温度、酸度、提取时间对铝提取率的影响。结果表明，最佳提取条件为20.0 mL水溶液内加体积分数为50%的硫酸1.00 mL、水浴温度100℃、水浴时间35 min;其RSD%为1.82%，平均回收率为95.7%，与国标中电感耦合等离子体质谱法进行配对t检验无显著性差异。该法简单、快速、准确，可用于粉丝中铝的测定。

A rapid determination method by chrome azuron S method for alminum in vermicelli after water extration was established.The experimental main factors were analyzed：Reaction temperature,acid concentration,water extraction time.The optimum water extraction conditions were bath temperature 100 ℃,50%（V/V）sulfuric acid 1.00 mL added into 20.0 mL water solution,water extraction time 35 min.The RSD% of method was 1.82%,the average recovery was 95.7%,the paired t test with inductively coupled plasma mass spectrometry（ICP-MS）of the national standar...