在简单的稀释程序后,通过感应合的等离子体光学发射光谱法在甘糖蜜样本中进行绿色多元元素的确定
Thalia J Santos1, Marcos Levi C M Dos Reis2, Luciano A de Albuquerque1
1Departamento de Ciências Exatas e Terra, Universidade do Estado da Bahia, Rua Silveira Martins, 2555, Salvador, Bahia 41195-001, Brazil.
Food chemistry
|July 6, 2025
概括
开发了一种新的,简单的稀释方法,用于用感应合等离子体光辐射光谱法 (ICP-OES) 进行糖蜜元素分析. 这种绿色分析化学方法提供了与传统方法相比准确的结果.
科学领域:
- 分析化学 分析化学
- 频谱学是一种光谱学.
背景情况:
- 对于质量控制而言,在糖蜜等食品矩阵中的元素确定是至关重要的.
- 基本分析的传统方法往往涉及复杂和耗时的样本准备步骤.
研究的目的:
- 开发一种简化,绿色的分析方法,用于糖蜜的元素测定.
- 为了优化样品制备,使用简单的中心体设计,以适应稀释剂比例.
主要方法:
- 诱导合等离子光辐射光谱法 (ICP-OES) 用于元素分析.
- 一种简单的稀释方法被优化,使用一个简单的酸,过氧化和盐酸的简单的中心体设计.
- 优化的稀释剂成分为60% 1.0 mol L−1 HNO3,24% 10% (v v−1) H2O2和16% 1.0 mol L−1 HCl,用于0.200g的样品.
主要成果:
- 实现了各种元素的低检测极限,包括Zn,Co,Cd,Mn,Cr,Al,Na,Pb和Cu (例如,Co的0.01毫克公斤-1).
- 开发的方法与通过微波辅助消化获得的结果有很好的一致性.
- 该方法证明了遵守绿色分析化学原则,得分为0.57 (AGREE) 和0.78 (AGREEprep).
结论:
- 建议的简单稀释方法是有效和准确的,用于用ICP-OES在糖蜜中的元素测定.
- 这种方法符合绿色分析化学原则,提供了更可持续的替代方案.
- 经过验证的方法为糖蜜分析提供了可靠的元素度数据.
相关概念视频
01:29Atomic Emission Spectroscopy: Lab
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AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
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01:19Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
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Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
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01:19Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
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In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
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01:20Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences
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Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
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01:22Atomic Emission Spectroscopy: Instrumentation
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The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers. Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
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01:26Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
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Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
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