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Related Concept Videos

Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

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Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
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Sample Preparation for Analysis: Advanced Techniques01:08

Sample Preparation for Analysis: Advanced Techniques

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Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
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Sample Preparation for Analysis: Overview01:21

Sample Preparation for Analysis: Overview

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Sample preparation is an essential step in the analytical process. It involves preparing a sample so that it can be analyzed accurately. The goal is to extract the analyte, the substance you want to measure, from the sample while removing any components that may interfere with the analysis. Sample preparation techniques vary depending on the physical state of the sample.
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Gravimetry: Overview01:05

Gravimetry: Overview

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Gravimetric analysis is a quantitative method where the analyte is isolated and weighed directly or after conversion into a substance of known composition. Gravimetric analysis can be classified as precipitation, electrogravimetry, volatilization, and particulate gravimetry, based on the method used to isolate the analyte.
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Volatilization01:10

Volatilization

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Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
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Atomic Emission Spectroscopy: Lab01:29

Atomic 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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Related Experiment Video

Updated: Jun 12, 2025

Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies
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Deconstructing contemporary disposable vapes: A material and elemental analysis.

Andrew Turner1, John W Scott2, Thomas Backshall-Kennedy1

  • 1School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK.

The Science of the Total Environment
|September 21, 2024
PubMed
Summary
This summary is machine-generated.

Disposable e-cigarettes contain complex materials, including plastics, metals, and toxic elements like lead and mercury. Their disposal poses environmental risks and recycling challenges due to material complexity and valuable resource content.

Keywords:
Heavy metalsPlasticsPyrolysis gas-chromatographyResourcesXRFe-cigarettes

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Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
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Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies
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Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
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Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System

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Area of Science:

  • Environmental Science
  • Materials Science
  • Analytical Chemistry

Background:

  • Disposable e-cigarettes (vapes) are increasingly popular, raising concerns about their environmental and health impacts.
  • Understanding vape composition is crucial for assessing sustainability and potential risks.

Purpose of the Study:

  • To characterize and quantify the materials and chemicals used in popular single-use e-cigarettes.
  • To identify potential environmental hazards and resource management implications.

Main Methods:

  • Dismantling of nine popular single-use vape models.
  • Analysis of components using X-ray fluorescence spectrometry and pyrolysis-gas chromatography mass spectrometry.

Main Results:

  • Vapes consist mainly of plastic (up to 80%) or metal (up to 85%), including batteries.
  • Identified polymers include polycarbonate and nylon; various toxic elements (As, Hg, Pb) were detected.
  • Metals such as Al, stainless steel, Ni-based alloys, and critical elements (Co, Nb, W) were found in components and batteries.

Conclusions:

  • The complex material composition of disposable vapes presents significant challenges for safe disposal and recycling.
  • Leaching of toxic metals poses environmental hazards, and metals in contact with wicks raise user exposure concerns.
  • The presence of critical elements highlights implications for resource management and sustainability.