相关实验视频

Updated: Sep 10, 2025

A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging
06:29

A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging

Published on: February 15, 2021

3.5K

开发一种以超声波辅助的泥采样为基础的方法,用于使用FAAS确定大米样本中的金属

Lays Pereira do Nascimento1, Laís Silva Gomes1, Cleber Galvão Novaes1

  • 1Departamento de Ciências E Tecnologias, Universidade Estadual Do Sudoeste da Bahia, Campus de Jequié, Rua José Moreira Sobrinho s/n, 45.206-190, Jequié, Bahia, Brazil.

Biological trace element research
|August 27, 2025
PubMed
概括

一种使用泥取样的新绿色分析方法可以准确地确定大米中的,铁和. 这种方法可以准确可靠地量化食品样本中的必需矿物质.

关键词:
美国航空航天局绿色方法其他金属多变量优化大米污泥采样

更多相关视频

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
Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies10:44

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies

Published on: July 1, 2016

11.5K

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...
556
Atomic Fluorescence Spectroscopy01:29

Atomic Fluorescence Spectroscopy

Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which...
496
Atomic Absorption Spectroscopy: Overview01:27

Atomic Absorption Spectroscopy: Overview

Atomic absorption spectroscopy (AAS) is a technique used to analyze elements by measuring electromagnetic radiation (EMR) absorbed by atoms, which causes them to transition to a higher-energy orbit. The most crucial step in AAS is atomization, where the analyte is converted into gas-phase atoms, typically through a flame or furnace. Some of these atoms become thermally excited in the flame, while most remain in the ground state.
When irradiated by EMR of a particular wavelength, these...
2.4K