Study on the molecularly imprinted polymers with methyl-testosterone as the template.

Area of Science:

• Polymer Chemistry
• Analytical Chemistry
• Environmental Science

Background:

• Methyl-testosterone is an anabolic steroid with potential environmental impact.
• Selective and sensitive detection methods are needed for environmental monitoring.
• Molecularly imprinted polymers (MIPs) offer tailored recognition capabilities.

Purpose of the Study:

• To synthesize and characterize methyl-testosterone imprinted polymers (MIPs).
• To evaluate the specificity and selectivity of the MIPs for methyl-testosterone.
• To assess the application of MIPs in solid-phase extraction (SPE) for real water samples.

Main Methods:

• Precipitation polymerization using methyl-testosterone, methacrylic acid (MAA), and ethylene glycol dimethacrylate (EDMA).
• Morphological analysis by scanning electron microscopy (SEM) and pore size by BET.
• Specificity and selectivity evaluation via equilibrium rebinding experiments.
• High-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) for retention behavior analysis.
• Solid-phase extraction (SPE) for methyl-testosterone enrichment in spiked tap and lake water.

Main Results:

• Successfully prepared methyl-testosterone MIPs with specific rebinding ability.
• Demonstrated strong retention of the template compared to structural analogues.
• Confirmed the effectiveness of MIPs as an HPLC stationary phase.
• Showcased successful enrichment of methyl-testosterone from spiked lake water using SPE.

Conclusions:

• The synthesized methyl-testosterone MIPs exhibit high specificity and selectivity.
• MIPs are effective for the selective extraction and enrichment of methyl-testosterone from environmental water samples.
• These MIPs hold significant promise for practical applications in environmental monitoring.