使用粉/德克斯特林-/银纳米颗粒吸收剂进行在注射器内分散的固体相微提取氧沙酸盐,然后进行紫外线可见光谱测量
1Chemistry Department, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia.
Journal of chromatography. A
|February 22, 2026
概括
一种新的粉/德克斯-/银纳米颗粒吸附剂被开发用于使用注射器内分散型固相微提取来提取氧沙酸盐. 这种环保方法在水样中提供了高灵敏度和精度的氧酸盐测定.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 氧沙酸盐的确定对于环境和食品安全监测至关重要.
- 现有的氧酸盐提取方法可能是复杂和耗时的.
- 需要开发高效和环保的吸附材料.
研究的目的:
- 开发和描述一种新的粉/德克斯特林-/银纳米粒子 (STR/DEX-Ca/Ag NPs) 吸收剂.
- 将这种吸附剂应用于在注射器中分散的固体相微提取 (IS-DSPME) 技术,用于氧酸盐提取.
- 评估在真实水样中测定氧沙酸盐的开发方法的性能.
主要方法:
- 使用TEM,SEM,XRD,FTIR,EDX和BET分析合成和描述STR/DEX-Ca/AgNP.
- 优化IS-DSPME对酸盐提取的参数.
- 使用紫外线可见光谱光度学分析提取的氧沙酸盐.
- 验证分析方法的线性,检测极限,量化极限和选择性.
主要成果:
- 该STR/DEX-Ca/AgNP表现出优异的分散性,表面活性和对酸盐的亲和力.
- 在优化条件下,IS-DSPME方法实现了高氧酸盐回收率 (98.9%99.6%).
- 该方法在0.5100微克/毫升的度范围内显示出强烈的线性 (R2 = 0.99),检测值 (0.6382微克/毫升) 和量化值 (2.1277微克/毫升) 极低.
- 观察到来自常见离子的最小干扰,该方法成功地应用于真实水样,具有高精度和可靠性.
结论:
- STR/DEX-Ca/Ag NP是通过IS-DSPME测定氧酸盐的有效和高性能吸附剂.
- 开发的方法是环保的,具有成本效益的,敏感的,适合常规环境和食品质量监测.
- 这项研究代表了STR/DEX-Ca/Ag NP在IS-DSPME中用于氧酸盐分析的首次应用.
更多相关视频
10:09A Straightforward Method for Glucosinolate Extraction and Analysis with High-pressure Liquid Chromatography HPLC
Published on: March 15, 2017
26.9K
11:49Sequencing of Plant Wall Heteroxylans Using Enzymic, Chemical Methylation and Physical Mass Spectrometry, Nuclear Magnetic Resonance Techniques
Published on: March 24, 2016
8.1K
相关概念视频
Extraction: Advanced Methods
1.2K
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
1.2K
Qualitative Analysis
25.7K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
For instance, group IV...
25.7K
