Related Experiment Video
Updated: Jan 17, 2026

Analysis of Organochlorine Pesticides in a Soil Sample by a Modified QuEChERS Approach Using Ammonium Formate
Published on: January 20, 2023
Analytical Development for Detecting Femtomole-Level Organophosphorus Compounds in Biogeochemical Samples by Ion
Yuta Hirakawa1, Toshiki Koga1, Takahiro Suzuki2
1Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima, Yokosuka 237-0061, Japan.
Abstract:
Phosphorus (P) is a crucial element for life, and its organic forms play a central role in modern biology. Therefore, the analysis of their presence in environmental samples is important for evaluating the biogeochemistry of P and the P cycle on the Earth. Herein, we developed a high-sensitivity, high-resolution analytical technique for detecting organophosphorus compounds using ion chromatography (IC) with Orbitrap-mass spectrometry (Orbitrap-MS). The IC method clearly separated organophosphorus compounds, including alkyl phosphonates and alkyl phosphates, from other organic molecules and inorganic ions. The online combination of IC and Orbitrap-MS enabled the quantification of organophosphorus compounds with concentrations as low as ∼10 fmol and their molecular identification in the presence of various interfering organic substances. The feasibility of the developed and optimized IC-Orbitrap-MS method was confirmed by analyzing deep-sea sediments obtained from 343 m below the seafloor. This developed analytical technique can also be applied to biogeochemical and astrochemical molecular surveys of organophosphorus compounds in natural environments.
More Related Videos
08:56Detection of Regulated Ergot Alkaloids in Food Matrices by Liquid Chromatography-Trapped Ion Mobility Spectrometry-Time-of-Flight Mass Spectrometry
Published on: November 22, 2024
10:34Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water
Published on: August 3, 2016
Related Concept Videos
High-Performance Liquid Chromatography: Types of Detectors
Mass Spectrometry: Complex Analysis
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
Gas Chromatography: Types of Detectors-II
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
Gas Chromatography–Mass Spectrometry (GC–MS)
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall....
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences