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Related Concept Videos

Sample Preparation for Analysis: Advanced Techniques01:08

Sample Preparation for Analysis: Advanced Techniques

583
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...
583
Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

3.0K
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...
3.0K
Volatilization01:10

Volatilization

1.7K
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...
1.7K

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Related Experiment Video

Updated: Oct 30, 2025

Transformation of Organic Household Leftovers into a Peat Substitute
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[Research progress in hydrothermal carbon materials for separation and analysis].

Xingyun Zhao1,2, Hongyan Zhang1, Huan Niu1,2

  • 1Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.

Se Pu = Chinese Journal of Chromatography
|July 2, 2021
PubMed
Summary

Hydrothermal carbon materials offer eco-friendly, versatile applications in separation science. These functional materials show promise as advanced stationary phases for analyzing complex biological samples in chromatography.

Keywords:
chromatographic stationary phaseenrichmentglycopeptideshydrothermal carbonphosphorylated peptidesreviewseparation

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Last Updated: Oct 30, 2025

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Organic Chemistry

Context:

  • Hydrothermal carbon materials are synthesized from renewable resources like sugars.
  • These materials exhibit advantageous properties including hydrophilicity and ease of modification.
  • They are established as catalyst carriers, electrode materials, and adsorbents.

Purpose:

  • To review recent applications of hydrothermal carbon materials in analytical chemistry.
  • To highlight their use as stationary phases in chromatography for separation and enrichment.
  • To discuss their utility in analyzing ionic compounds, polar compounds, phosphorylated peptides, and glycopeptides.

Summary:

  • Hydrothermal carbon materials are functional materials derived from hydrothermal reactions of organic compounds.
  • Their unique properties enable strong molecular interactions, making them effective absorbents.
  • Recent advancements focus on their chromatographic applications for complex biological sample analysis and enrichment.

Impact:

  • Demonstrates the expanding role of hydrothermal carbon materials in advanced separation techniques.
  • Provides insights into their potential for analyzing challenging biological molecules.
  • Suggests future directions for material development in chromatography and sample enrichment.