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Related Concept Videos

Titrimetric Methods: Types and Commonly Used Strategies01:08

Titrimetric Methods: Types and Commonly Used Strategies

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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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EDTA: Direct, Back-, and Displacement Titration01:30

EDTA: Direct, Back-, and Displacement Titration

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The EDTA titration types for metal ion analysis include direct titration, back-titration, and replacement titration.
Direct titration involves buffering the metal ion solution to the desired pH and directly titrating with standard EDTA until the endpoint. The optimum pH ensures a large conditional formation constant of metal−EDTA and visibility of the free indicator color in the solution. In addition, auxiliary complexing reagents are used to prevent the precipitation of metal hydroxides...
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Classification of Titrimetric Analysis Based on Reaction Types01:01

Classification of Titrimetric Analysis Based on Reaction Types

855
Titrimetric analysis in solution chemistry involves measuring the volume of solutions and is often called volumetric analysis. The standard solution of known concentration in the burette is called the titrant, whereas the solution of unknown concentration in the flask is called the analyte, or titrand. Titrimetric analyses can be classified into four types based on the reactions between the titrant and analyte.
Titrations between an acid and a base lead to neutralization reactions that form...
855
EDTA: Indirect and Alkalimetric Titration01:23

EDTA: Indirect and Alkalimetric Titration

1.1K
Unlike direct titration, back-titration, and displacement titration, indirect titration is an EDTA titration method for quantifying anions. In the indirect titration method, anions are precipitated as their insoluble salts with excess metal ions. The filtrate containing the excess metal ions is directly titrated with standard EDTA until the endpoint is achieved. Another approach involves extracting the metal ion and back-titrating with standard EDTA to obtain the endpoint. In this way, the...
1.1K
Complexometric Titration: Overview00:39

Complexometric Titration: Overview

8.0K
Complexometric titration involves the formation of a complex by reacting a metal ion with one or more ligands. A visual indicator often detects the end point of a complexometric titration. It is added to the metal solution before the titration, forming a stable metal–indicator complex and imparting color to the solution. As the titration approaches the equivalence point, the excess of the added ligand displaces the indicator from the metal–indicator complex, releasing the free...
8.0K
Precipitation Titration: Overview01:26

Precipitation Titration: Overview

7.2K
Precipitation titration involves the reaction of a titrant and an analyte to generate an insoluble precipitate. While precipitation titration uses various precipitating agents, silver nitrate is the most common precipitating reagent; titrations involving Ag+ are called argentometric titrations. Usually, the endpoint in a precipitation titration can be detected by visual indicators.
A precipitation titration curve demonstrates the change in concentration of the titrant or analyte upon adding the...
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Correction: Fukushima et al. Long-Term Immunogenicity of Rabies Pre-Exposure Prophylaxis in Japanese Adult Travelers: Comparison of Dosing Regimens. <i>Vaccines</i> 2025, <i>13</i>, 1169.

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Related Experiment Video

Updated: Sep 21, 2025

Preparation and Evaluation of 99mTc-labeled Tridentate Chelates for Pre-targeting Using Bioorthogonal Chemistry
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Moving beyond Titers.

Benjamin D Brooks1,2, Alexander Beland3, Gabriel Aguero3

  • 1Department of Biomedical Sciences, Rocky Vista University, Ivins, UT 84738, USA.

Vaccines
|May 28, 2022
PubMed
Summary
This summary is machine-generated.

Next-generation sequencing and immunogenomics offer new ways to understand individual immune responses to vaccines. These advanced technologies can improve vaccine efficacy, safety, and public trust.

Keywords:
B cell epitopesCOVID-19HLA typingepitope binningimmune repertoire sequencingimmunogenicityimmunogenomicstitersvaccine developmentvaccine efficacyvaccine non-responsiveness/poor durability/longevity

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Area of Science:

  • Immunology
  • Vaccinology
  • Genomics

Background:

  • Vaccination is a cornerstone of public health, yet opportunities exist to enhance population-wide protection.
  • Understanding individual immune responses is crucial for developing next-generation vaccines, particularly against rapidly evolving pathogens.

Purpose of the Study:

  • To highlight emerging technologies for characterizing individual humoral immune responses.
  • To explore how these technologies can improve vaccine discovery, safety, efficacy, and immunological memory generation.

Main Methods:

  • Immune repertoire sequencing
  • Immunogenomics/vaccinomics (including HLA variants)
  • High-throughput epitope characterization

Main Results:

  • These technologies provide insights into population variation and disease protection.
  • Combined application of these techniques can enhance vaccine effectiveness and safety.
  • Moving beyond neutralizing titers is essential for assessing immunogenicity and efficacy.

Conclusions:

  • Emerging technologies offer powerful tools to advance vaccine development and address vaccine hesitancy.
  • A comprehensive understanding of the humoral immune response is key to improving vaccine uptake and public health outcomes.