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Related Concept Videos

High-Performance Liquid Chromatography: Introduction01:11

High-Performance Liquid Chromatography: Introduction

High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
In HPLC, two phases play a critical role in the separation process:
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...

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Related Experiment Video

Updated: Jul 20, 2026

Identification of Pharmaceuticals in The Aquatic Environment Using HPLC-ESI-Q-TOF-MS and Elimination of Erythromycin Through Photo-Induced Degradation
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[Determination of triazines in surface water using solid phase extraction-high performance liquid chromatography].

Zhu Li1, Ling Chen, Hongwen Gao

  • 1State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai, China. lizhu98@sohu.com

Se Pu = Chinese Journal of Chromatography
|August 26, 2006
PubMed
Summary

A new method using solid phase extraction and high-performance liquid chromatography effectively monitors triazines in surface water. This technique accurately detected prometryn and atrazine in lake and river samples.

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Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry

Context:

  • Triazine herbicides are widely used in agriculture, leading to potential contamination of surface water.
  • Monitoring triazine levels in aquatic environments is crucial for assessing ecological and human health risks.

Purpose:

  • To develop and optimize a sensitive method for detecting six key triazine herbicides in surface water.
  • To evaluate the performance of different solid phase extraction (SPE) cartridges and optimize extraction parameters.

Summary:

  • A novel method combining SPE and high-performance liquid chromatography (HPLC) was established for triazine monitoring.
  • ENVI-18 SPE cartridges demonstrated optimal performance for extracting atrazine, simazine, prometryn, and their metabolites.
  • Optimized SPE conditions (pH 6, 5 mL methanol eluent) achieved low detection limits (0.08–0.18 µg/L) for target triazines.
  • The method successfully quantified prometryn in lake water and atrazine and prometryn in river water samples.

Impact:

  • Provides a reliable analytical tool for environmental monitoring of triazine contamination in surface waters.
  • Contributes to better risk assessment and management strategies for agricultural pollutants in aquatic ecosystems.
  • The developed method can be applied to routine environmental analysis and regulatory compliance.