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Related Concept Videos

Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

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Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
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Atomic Emission Spectroscopy: Overview01:20

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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...
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Atomic Emission Spectroscopy: Lab01:29

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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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Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

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In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
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Atomic Emission Spectroscopy: Instrumentation01:22

Atomic 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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Atomic Absorption Spectroscopy: Atomization Methods01:25

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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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Extraction and Characterization of Surfactants from Atmospheric Aerosols
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Corrigendum: Detecting sulphate aerosol geoengineering with different methods.

Y T Eunice Lo, Andrew J Charlton-Perez, Fraser C Lott

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    Summary

    This study corrects a previously published article DOI. The correction ensures accurate citation and retrieval of scientific information for researchers.

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    Area of Science:

    • Scientific publishing
    • Scholarly communication
    • Digital object identifier (DOI) systems

    Background:

    • Accurate citation is crucial for scientific integrity.
    • Digital Object Identifiers (DOIs) are essential for locating research articles.
    • Errors in DOIs can hinder research accessibility.

    Purpose of the Study:

    • To correct an erroneous Digital Object Identifier (DOI).
    • To ensure proper attribution and retrieval of the scientific article.
    • To maintain the integrity of the scholarly record.

    Main Methods:

    • Identification of the incorrect DOI.
    • Verification of the correct DOI.
    • Issuance of a correction notice.

    Main Results:

    • The incorrect DOI has been rectified.
    • The article is now accurately identifiable.
    • Improved accessibility for researchers seeking this publication.

    Conclusions:

    • The correction ensures the scientific article is correctly linked.
    • This maintains the reliability of scientific literature databases.
    • Accurate DOIs are fundamental to efficient scholarly communication.