相关实验视频

Updated: Sep 19, 2025

Author Spotlight: Technologies and Challenges in Elemental Analysis of Food Samples
06:53

Author Spotlight: Technologies and Challenges in Elemental Analysis of Food Samples

Published on: December 22, 2023

2.5K

使用高分辨率连续源石墨炉原子吸收光谱学直接固体分析对狗和猫零食中的Pb,Ni和Fe的顺序和同时确定

Nicole Evelyn de J Santos1, Rafael R Francisco1, Leandro Kolling2

  • 1Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Campus Universitário de Ondina, 40170-115, Salvador, Bahia, Brazil.

Talanta
|June 8, 2025
PubMed
概括

一种新的分析方法使用直接固体分析和HR-CS GF AAS准确测量,和铁在物食品中的含量. 这种可靠的技术适用于物食安全的常规质量控制.

关键词:
猫 猫 猫 猫 猫 猫 猫直接样本分析 直接样本分析狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗狗人权高官-CS GF AAS AAS 在零食 小吃 零食微量元素中的微量元素.

更多相关视频

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon04:54

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Published on: October 29, 2021

3.2K
Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.08:21

Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.

Published on: September 1, 2017

15.3K

相关概念视频

Atomic Absorption Spectroscopy: Lab01:21

Atomic Absorption Spectroscopy: Lab

For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
 Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
572
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
2.6K
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

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...
252