Column silylation method for determining endocrine disruptors from environmental water samples by solid phase micro-extraction

Talanta ◽  
2001 ◽  
Vol 54 (6) ◽  
pp. 1039-1047 ◽  
Author(s):  
M Helaleh
Keyword(s):  
Endocrine Disruptors ◽  
Water Samples ◽  
Solid Phase ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Solid Phase Micro Extraction

scholarly journals Magnetic Solid-Phase Extraction of Pyrethroid Pesticides from Environmental Water Samples Using Deep Eutectic Solvent-type Surfactant Modified Magnetic Zeolitic Imidazolate Framework-8

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4038 ◽  
Author(s):  
Huifang Liu ◽  
Lihua Jiang ◽  
Meng Lu ◽  
Guangyang Liu ◽  
Tengfei Li ◽  
...  
Keyword(s):  
Water Samples ◽  
Solid Phase ◽  
Deep Eutectic Solvent ◽  
Magnetic Solid Phase Extraction ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Phase Extraction ◽  
Zeolitic Imidazolate Framework ◽  
Pyrethroid Pesticides ◽  
Magnetic Solid

A simple, sensitive and effective magnetic solid-phase extraction (MSPE) technique was developed for the extraction of pyrethroid pesticides from environmental water samples, followed by gas chromatography tandem triple quadrupole mass spectrometry determination. An adsorbent of magnetic zeolitic imidazolate framework-8@deep eutectic solvent (M-ZIF-8@DES) was prepared using deep eutectic solvent coated on the surface of M-ZIF-8. The features of M-ZIF-8@DES were confirmed by material characterizations, and the results indicated that M-ZIF-8@DES has a good magnetism (61.3 emu g−1), a decent surface area (96.83 m2 g−1) and pore volume (0.292 mL g−1). Single factor experiments were carried out to investigate the effect of different conditions on the performance of MSPE. Under the optimal conditions, the developed method performs good linearity (R2 ≥ 0.9916) in the concentration range of 1–500 μg L−1. The limits of detection were in the range of 0.05–0.21 μg L−1 (signal/noise = 3/1). The intraday relative standard deviation (RSD) and interday RSD were less than 9.40%. Finally, the proposed technique was applied for the determination of pyrethroid pesticides in environmental water samples. This work shows the potential of DES-modified metal-organic frameworks for different sample pretreatment techniques.

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