Analysis of Total Oil and Grease (TOG) and Total Petroleum Hydrocarbons (TPH) in Water Using FTIR Spectroscopy Based on ASTM D7678-17

User Benefits

- Quantitative analysis of TOG and TPH in water based on ASTM D7678-17 is possible with quantitation mode in LabSolutions IR. - Low concentrations of hydrocarbon in water can be measured using IRXross with high sensitivity.

Introduction

Hydrocarbon contamination in various water bodies has become increasingly common around the world. It typically results from spills, leaks, or runoff from industrial activities. Once present in water, hydrocarbons can disperse throughout the environment, causing detrimental effects on environmental and human health as they infiltrate the food chain and pollute drinking water. Thus, it is essential to monitor and assess hydrocarbon contamination in these water bodies. There are various regulated methods available for determining hydrocarbon content in water samples, such as ISO 9377-2:2000, which is based on gas chromatography, and ASTM D7678-17, which uses Fourier Transform Infrared (FTIR) spectroscopy. In ASTM D7678-17, the total oil and grease (TOG) and total petroleum hydrocarbons (TPH) can be determined from water samples. Cyclohexane is used for solvent extraction, which is relatively safer and more environmentally friendly than the halogenated solvents employed in previous methods, such as ASTM D3921. This application news demonstrates the analysis of hydrocarbon in water with cyclohexane as the extraction solvent using IRXross, Shimadzu FTIR spectrometer.

April 3, 2025 GMT