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Related Concept Videos

Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

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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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Sample Preparation for Analysis: Advanced Techniques01:08

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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.
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Electrogravimetric Analysis: Overview01:30

Electrogravimetric Analysis: Overview

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Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying a potential to a pre-weighed electrode submerged in a solution, which results in the desired substance being deposited through reduction at the cathode or oxidation at the anode. The electrode's weight is recorded after deposition, and the difference in weight gives the analyte's weight in the solution.
To test the completeness of the...
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Atomic Absorption Spectroscopy: Lab01:21

Atomic Absorption Spectroscopy: Lab

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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.
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Quantitative Analysis01:12

Quantitative Analysis

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Quantitative analysis is a technique for measuring the amount of specific constituents in a sample. When the sample's composition is unknown, qualitative analysis is performed first to identify its components, which ensures that the correct substances are measured during the quantitative phase.
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Related Experiment Video

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

Stephan Hann1, Mihaly Dernovics2, Gunda Koellensperger3

  • 1Department of Chemistry, University of Natural Resources and Life Sciences - BOKU Vienna, Muthgasse 18, 1190 Vienna, Austria; Austrian Centre of Industrial Biotechnology (ACIB), Muthgasse 18, 1190 Vienna, Austria.

Current Opinion in Biotechnology
|October 4, 2014
PubMed
Summary
This summary is machine-generated.

This article explores advanced analytical methods in biotechnology, leveraging inductively coupled plasma mass spectrometry (ICP-MS) for sensitive elemental analysis. These techniques offer precise quantification and multi-element detection for diverse biotechnological applications.

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Area of Science:

  • Biotechnology
  • Analytical Chemistry
  • Atomic Spectroscopy

Background:

  • Biotechnology relies on precise elemental analysis for various applications.
  • Inductively coupled plasma mass spectrometry (ICP-MS) is a key technique in elemental analysis.
  • Existing methods require further development for complex biological matrices.

Purpose of the Study:

  • To present analytical strategies integrating atomic spectroscopy in biotechnology.
  • To highlight the advantages of ICP-MS for bio-analytical challenges.
  • To showcase recent advancements and potential applications.

Main Methods:

  • Utilizing high sensitivity and selectivity of ICP-MS instrumentation.
  • Employing accurate absolute quantification in complex biological samples.
  • Combining elemental detection with chromatographic separation.
  • Leveraging inorganic and organic mass spectrometry.
  • Performing multi-element and isotopic analysis.

Main Results:

  • Demonstrated recent bio-analytical developments using ICP-MS advantages.
  • Showcased the potential of these methods in biotechnological applications.
  • Highlighted the versatility of combining elemental analysis with separation techniques.

Conclusions:

  • Atomic spectroscopy, particularly ICP-MS, offers powerful tools for biotechnology.
  • Advanced analytical strategies enhance sensitivity, selectivity, and quantification in biological samples.
  • These integrated methods hold significant promise for future biotechnological innovations.