Ion mobility spectrometry as a high-throughput analytical tool in occupational pyrethroid exposure

Area of Science:

• Analytical Chemistry
• Occupational Health and Safety
• Environmental Science

Background:

• Pyrethroids are widely used insecticides with potential occupational health risks.
• Existing analytical methods for pyrethroid exposure can be time-consuming and generate chemical waste.
• There is a need for rapid, high-throughput, and environmentally friendly analytical tools for workplace safety.

Purpose of the Study:

• To demonstrate the utility of ion mobility spectrometry (IMS) as a green analytical tool for occupational health and safety.
• To develop and validate a method for assessing dermal and inhalation exposure to pyrethroids.
• To highlight the advantages of IMS in terms of speed, simplicity, and reduced environmental impact.

Main Methods:

• Passive sampling of pyrethroids using Teflon membranes for both dermal and inhalation exposure.
• Direct thermal extraction of sampled pyrethroids.
• Analysis of vaporized pyrethroids using atmospheric pressure chemical ionization ion mobility spectrometry (APCI-IMS).
• Investigation of negative ion product formation for pyrethroid detection.

Main Results:

• Successful detection of synthetic pyrethroids using APCI-IMS.
• Obtained limits of detection ranging from 0.08 to 5 ng.
• Demonstrated a method requiring no reagent or solvent consumption.
• Achieved high throughput analysis with simplified measurement procedures.

Conclusions:

• Ion mobility spectrometry is a viable high-throughput and green analytical technique for occupational health and safety.
• The developed method offers a rapid, solvent-free approach for pyrethroid exposure assessment.
• This IMS-based method significantly reduces sample treatment, solvent consumption, and waste generation, aligning with green chemistry principles.