[Determination of 15 carbonyl compounds in soil using improved solid phase extraction-high performance liquid...

Area of Science:

• Environmental Chemistry
• Analytical Chemistry

Context:

• Carbonyl compounds are significant environmental pollutants.
• Existing methods for soil carbonyl compound analysis have limitations.
• Accurate determination of carbonyl compounds in soil is crucial for environmental monitoring.

Purpose:

• To develop and validate an improved solid phase extraction (SPE)-high performance liquid chromatography (HPLC) method.
• To determine 15 carbonyl compounds in soil samples.
• To enhance the accuracy and efficiency of soil carbonyl compound analysis compared to existing standards like HJ 997-2018.

Summary:

• An optimized SPE-HPLC method was established for quantifying 15 carbonyl compounds in soil.
• The method involves ultrasonic extraction with acetonitrile, derivatization with 2,4-DNPH, and purification using a BRP SPE cartridge.
• Optimal extraction conditions (acetonitrile, 30°C, 10 min) and chromatographic parameters were determined, achieving good linearity, recovery, and low detection limits.

Impact:

• Provides a simple, sensitive, and accurate method for analyzing 15 carbonyl compounds in soil.
• Offers reliable technical support for studying the residual status and environmental behavior of carbonyl compounds in soil.
• Improves upon the existing environmental standard HJ 997-2018 for soil carbonyl compound determination.