基于国标GB 28304-2012对可得然胶含量检测优化的研究
The study focuses on the optimization of curdlan content detection based on GB 28304-2012
徐斌 1屠瀚超 1戴彦韵1
作者信息
- 1. 上海市质量监督检验技术研究院,上海 200233
- 折叠
摘要
可得然胶含量的检测,国标目前采用苯酚硫酸法,但是由于部分可得然胶在 0.1 mol/L氢氧化钠溶液中溶解会产生结块而不能很好地在溶剂中分散,导致含量检测结果不稳定.采用磁力搅拌、匀浆机分散和乙醇分散的方法对样品进行处理后发现:乙醇能够很好地分散可得然胶样品,使其在氢氧化钠溶液中不会产生结块.这一前处理快速、高效地解决了可得然胶含量测定时的痛点,为检测方法的改进提供了一定的思路.
Abstract
The current national standard employs the phenol-sulfuric acid method for quantifying the curdlan content.However,due to inadequate dispersion of some curdlan particles in the solvent caused by agglomeration during dissolution in a 0.1mol/L sodium hydroxide solution,the results of content detection were found to be unstable.The samples were treated by magnetic stirring,homogenizer dispersion and ethanol dispersion.It was found that:The ethanol effectively disperses the curdlan sample in the sodium hydroxide solution,preventing it from agglomerating.The ethanol method effectively and efficiently addresses the pain point in determining the content of curdlan,offering valuable insights for enhancing the detection methodology.
关键词
可得然胶/含量检测/国标/方法改进Key words
curdlan/content detection/national standard/method improvement引用本文复制引用
基金项目
上海市质量监督检验技术研究院青年科技启明星项目(QMX-2023-3-SP)
出版年
2024
NETL
NSTL
万方数据