ICP-AES次灵敏线法测定高盐食品中氯化钠的含量

张丽霞; 曾丽; 郑迎新; 郭庆园; 谢骏谦; 郭汉城

doi:10.13386/j.issn1002-0306.2018.20.040

ICP-AES次灵敏线法测定高盐食品中氯化钠的含量

1. 中华人民共和国清远海关, 广东清远 511515;
2. 华南农业大学食品学院, 广东广州 510000;
3. 中华人民共和国广州海关, 广东广州 510000

详细信息

作者简介:
张丽霞(1990-),女,硕士研究生,工程师,研究方向:食品理化性质检验,E-mail:LIXIAZHANGVITA@126.com。

通讯作者:
郭汉城(1962-),男,本科,高级工程师,研究方向:食品以及化矿金检验,E-mail:304187020@qq.com。

中图分类号: TS207.3
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出版历程
- 收稿日期: 2017-12-11
- 网络出版日期: 2020-11-22
- 刊出日期: 2018-10-14

Determination of Sodium Chloride Content in High Salt Food by ICP-AES with Sub-sensitive Wave Line

1. Qingyuan Customs House, Qingyuan 511515, China;
2. South China Agricultural University College of Food Science, Guangzhou 510000, China;
3. Guangzhou Customs District People's Republic of China, Guangzhou 510000, China

摘要

摘要: 本文以高盐食品为研究对象,建立了运用等离子体发射光谱法(ICP-AES)次灵敏线(330.232 nm)检测高盐食品中NaCl含量的方法,并比较了外界共存离子以及不同前处理方法对于测定结果的影响。结果显示:ICP-AES次灵敏线(330.232 nm)的线性范围(10~300 mg/L,r=0.9995)宽于主灵敏线(589.59 nm)的线性范围(0~20 mg/L,r=0.9998)且精密度良好(RSD < 1.0%),可以规避传统方法测定样品因稀释梯度大而导致的误差;外界共存元素K、Ca、Mg、Sn及Zn离子对于ICP-AES发射光谱次灵敏线测定NaCl含量的结果没有影响,这也规避了滴定法中非目标氯化物带来的干扰;通过与国标方法的比较,ICP-AES发射光谱次灵敏线法的准确性与精密度均与国标法持平,这表明ICP-AES发射光谱次灵敏线在高盐食品中检测氯化钠含量的具有独特优势,具有一定的推广价值。
- 次灵敏线 /
- 电感耦合等离子体发射光谱法 /
- 高盐食品 /
- NaCl
Abstract: A method for the determination of sodium chloride in high salt food by icp-atomic (ICP-AES) emission spectrometry with sub-sensitive wave line (330.232 nm) was established.And the effect of exogenous potassium ion, calcium ion, magnesium ion, tin ion and zinc ion on the determination of sodium chloride by ICP-AES emission spectrometry with sub-sensitive wave line was estimated.Moreover, the pretreatment was also optimized. The results illustrated that liner range of this method was wider (10~300 mg/L, r=0.9995) than the national standard method (0~20 mg/L, r=0.9998) and the precision was good (RSD < 1.0%), which was equal to the national standard method.The determination of sodium chloride by the ICP-AES emission spectrometry with sub-sensitive wave line method was not affected by the exogenous positive ions, which could avoid the bias from non-target chloride.The method was sensitive, accurate and could be applied in the determination of sodium chloride in high salt food.
- sub-sensitive wave line /
- ICP /
- high salt food /
- NaCl