An overview of the most common lab-made coating materials in solid phase microextraction

Area of Science:

• Analytical Chemistry
• Materials Science

Background:

• Solid-phase microextraction (SPME) is a widely used technique for sample preparation.
• Development of novel SPME coating materials is crucial for improving extraction efficiency and selectivity.

Purpose of the Study:

• To provide a comprehensive review of five major classes of lab-made SPME coating materials.
• To evaluate the unique features, extraction performance, strengths, and drawbacks of these materials.
• To discuss future perspectives in the development of SPME coating materials.

Main Methods:

• Literature review and critical evaluation of existing research on SPME coating materials.
• Analysis of metal-organic frameworks (MOFs), layered double hydroxides (LDHs), molecular imprinted polymers (MIPs), conductive polymers (CPs), and ionic liquids (ILs) and their derivatives.
• Examination of material properties, synthesis methods, and application performance in SPME.

Main Results:

• Detailed assessment of MOFs, LDHs, MIPs, CPs, and ILs as SPME coatings.
• Identification of specific advantages and disadvantages for each material class.
• Comparison of extraction efficiencies and selectivities across different material types.

Conclusions:

• These five material groups offer diverse and significant potential for SPME applications.
• Understanding their unique characteristics is key to selecting the optimal material for specific analytical challenges.
• Continued research into novel derivations and composite materials will further advance SPME technology.