Development of a selective solid phase extraction method for nitro musk compounds in environmental waters using a...

Area of Science:

• Environmental Chemistry
• Analytical Chemistry
• Materials Science

Background:

• Nitro musks are widely used synthetic fragrances.
• Their presence in environmental waters poses ecological concerns.
• Sensitive analytical methods are needed for their detection.

Purpose of the Study:

• To develop a selective and efficient method for nitro musk determination in environmental water.
• To utilize molecularly imprinted silica (MIS) for solid phase extraction (SPE).
• To achieve high selectivity and enrichment factors for nitro musk analysis.

Main Methods:

• Solid phase extraction (SPE) using molecularly imprinted silica (MIS) as a sorbent.
• Gas chromatography-mass spectrometry (GC-MS) for analyte determination.
• Comparison of MIS with non-imprinted silica (NIS) and conventional polymeric SPE sorbents.

Main Results:

• Extraction recoveries for nitro musks ranged from 61% to 87% with MIS.
• MIS demonstrated high selectivity for nitro musks compared to NIS (8-26% recovery).
• High enrichment factors (580-827) were achieved, showcasing MIS's clean-up potential.

Conclusions:

• Molecularly imprinted silica (MIS) provides a highly selective and effective SPE material for nitro musk extraction.
• The developed method enables the selective extraction of five nitro musk compounds from environmental waters for the first time.
• This analytical approach enhances the capability to monitor nitro musk pollution in aquatic environments.