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Related Concept Videos

Qualitative Analysis01:10

Qualitative Analysis

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Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...
663
Chromatographic Methods: Classification01:12

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Chromatographic techniques are classified in three ways: the classification is based on the physical state of the stationary and mobile phases, how the mobile phase and the stationary phase contact each other, or through the chemical or physical processes that isolate the components of the sample. Typically, the mobile phase is either a liquid or gas, while the stationary phase is either a solid or a liquid layer applied to a solid surface.
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Titrimetric Methods: Types and Commonly Used Strategies01:08

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In chemistry, titrimetric methods are broadly classified into three types: volumetric, gravimetric, and coulometric. Volumetric titrations involve measuring the volume of a titrant of known concentration that is required to react completely with an analyte. In gravimetric titrations, the standard solution reacts with the analyte to form an insoluble precipitate, which is filtered, dried, and weighed. In coulometric titrations, current is applied to an electrochemical reaction until the reaction...
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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.
In quantitative analysis, two key measurements are made: the sample quantity and a property proportional to the amount of the analyte (the substance being analyzed). This forms the basis of the...
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Updated: Sep 5, 2025

A Generalized Method for Determining Free Soluble Phenolic Acid Composition and Antioxidant Capacity of Cereals and Legumes
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White wine phenolics: current methods of analysis.

Sarah Clarke1, Gurthwin Bosman2, Wessel du Toit1

  • 1South African Grape and Wine Research Institute (SAGWRI), Department of Viticulture and Oenology, Stellenbosch University, Stellenbosch, South Africa.

Journal of the Science of Food and Agriculture
|July 13, 2022
PubMed
Summary

This review details analytical methods for white wine phenolics, an area less studied than red wine. Advances in technology are enabling new ways to identify and quantify these important wine compounds.

Keywords:
chromatographyelectrochemistryphenolic compoundsspectroscopywhite wines

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Area of Science:

  • Food Science
  • Analytical Chemistry
  • Oenology

Background:

  • Phenolic compounds in wine significantly impact sensory properties and health benefits.
  • Research on white wine phenolics is less extensive compared to red wine.
  • Technological advancements are driving new analytical approaches in winemaking.

Purpose of the Study:

  • To provide a comprehensive overview of current research on white wine phenolics.
  • To critically discuss the analytical methods used for white wine phenolic analysis.
  • To highlight novel approaches for identifying, quantifying, and classifying phenolic compounds in white wine.

Main Methods:

  • Spectrophotometric methods
  • Chromatographic techniques (e.g., HPLC)
  • Spectroscopic analysis
  • Electrochemical detection

Main Results:

  • The review consolidates information on various analytical techniques applicable to white wine.
  • It identifies key phenolic compounds and their significance in white wine.
  • Emerging methods offer improved accuracy and efficiency in phenolic analysis.

Conclusions:

  • A critical need exists for more research into white wine phenolics.
  • Standardization of analytical methods is crucial for reliable comparisons.
  • Understanding white wine phenolics is vital for quality control and product development in the wine industry.