电感耦合等离子发射光谱测定乳扇中的铝含量

电感耦合等离子发射光谱测定乳扇中的铝含量
目的  建立电感耦合等离子发射光谱法测定乳扇中铝含量的分析方法。调查市售样品中铝的含量是否异常。方法  采用湿式消解法处理乳扇样品, 电感耦合等离子发射光谱测定样品中铝的含量, 同时进行精密度实验和加标回收实验。测定市场收集的乳扇样品中铝的含量, 并与严格按云南省地方标准(DBS 53/010-2016)制作的乳扇样品进行比较。结果  铝在0~10 mg/L范围内线性关系良好, 相关系数r达0.999928, 方法的检出限为0.5 mg/kg, 定量限为1.5 mg/kg, 精密度为2.5%~3.1%, 加标回收率在96.6%~105.0%之间。按地方标准制作的乳扇样品中铝含量较低, 在3.2~5.3 mg/kg之间, 部分市场收集的样品中铝含量偏高。结论  本方法操作简便、结果准确, 可作为乳扇中铝含量检测的方法。乳扇应严格按照地方标准制作。

Objective  To establish a method for the determination of aluminum element in dairy fan by inductively coupled plasma optical emission spectrometry (ICP-OES), and investigate whether the aluminum contents of the dairy fans collected from the market were abnormal. Methods  Dairy fan samples were preprocessed by wet digestion method. The content of aluminum in the sample was determined by ICP-OES. The precision experiment and the standard recovery experiment were also carried out. The content of aluminum in the milk fan samples collected in the market was measured and compared with those made strictly according to the local standard of Yunnan province (DBS 53/010-2016). Results  Aluminum element had a good linear relationship within the range of 0-10.0 mg/L with the correlation coefficient (r) of 0.999928. The limit of detection was 0.5 mg/kg, and the limit of quantitation was 1.5 mg/kg. The recoveries of standard additions ranged from 96.6% to 105.0% with the relative standard derivations between 2.5%-3.1%. The contents of aluminum in dairy fans produced according to DBS53/010-2016 were low (3.2-  5.3 mg/kg), while in some of the dairy fans collected from the market were much higher. Conclusion  This method is simple and accurate, which can be used for the determination of aluminum content in dairy fan. Dairy fans should be made in strict accordance with local standards. The production process of fan should be standardized.

标题：电感耦合等离子发射光谱测定乳扇中的铝含量
英文标题：Determination of aluminum content in dairy fan by inductively coupled plasma optical emission spectrometry

作者：
杨卫花 大理州质量技术监督综合检测中心
寸宇智 大理大学农学与生物科学学院
赵浩军 大理州质量技术监督综合检测中心
甘献明 大理州质量技术监督综合检测中心
杨慰 大理州质量技术监督综合检测中心
郭启新 大理州质量技术监督综合检测中心

中文关键词:乳扇,铝,电感耦合等离子发射光谱法,湿法消解,
英文关键词:dairy fan products,aluminum,inductively coupled plasma optical emission spectrometry,wet digestion,

发表日期：2018-07-21

2025-1-31 19:42 上传 电感耦合等离子发射光谱测定乳扇中的铝含量.pdf

文件大小:

4.11 MB

下载次数:

60

高速下载