A green extraction material — natural cotton fiber for in‐tube solid‐phase microextraction

Abstract

Natural cotton fiber was applied as a green extraction material for in‐tube solid‐phase microextraction. Cotton fibers were characterized by scanning electron microscope. A bundle of cotton fibers (685 mg, 20 cm) was directly packed into a polyetheretherketone tube (i.d. 0.75 mm) to get the extraction device. It was connected into high performance liquid chromatography, building an online extraction and dectection system. Through the online analysis system, several polycyclic aromatic hydrocarbons were used as the targets to evaluate the extraction performace of the device. In order to get high extraction efficiency and sensitivity, the extraction and desorption conditions were optimized. Under the optimum conditions, the sensitive analysis method was established, and provided low limits of detection of 0.02 and 0.05 μg/L, good linearity ranges of 0.06–15 and 0.16–15 μg/L, as well as high enrichment factors of 176–1868. The method was applied to the online determination of trace polycyclic aromatic hydrocarbons in snow water and river water, and the relative recoveries corresponding to 2 and 5 μg/L were in the range of 80–116%. The repeatability of extraction and preparation of the device was investigated and the relative standard deviations (n = 3) were less than 3.6 and 5.2%.

Evolution of Green Sample Preparation: Fostering a Sustainable Tomorrow in Analytical Sciences

“…Common materials from natural-based origin found in the literature include chitosan/poly­(vinyl alcohol) electrospun nanofibers, cellulose, , alginate, starch, and even biowaste . Feng and co-workers packed natural cotton fiber into a polyetheretherketone (PEEK) tube (i.d. 0.75 mm).…”

Nylon 6-cellulose composite hosted in a hypodermic needle: Biofluid extraction and analysis by ambient mass spectrometry in a single device

“…In the microextraction context, cotton has been used in different formats, including cotton fibers [ 25 ], threads [ 15 ], swabs [ 26 ], and gauzes [ 27 ]. Different authors have reported using unmodified cotton fibers for microextraction purposes [ 28 , 29 ]. However, cellulose fibers are usually chemically modified to promote interaction with the target analytes.…”

Triazine‐based organic polymers@SiO2 nanospheres for sensitive solid‐phase microextraction of polycyclic aromatic hydrocarbons

“…Various extraction configurations emerge in endlessly such as fiber [9], in-tube [10], stir bar [11], in tip [12], and dispersive SPE and SPME [13][14][15]. online extraction and detection [16]. online extraction and detection [16].…”

“…Among them, the combination of intube SPME and HPLC makes a possibility of high-throughput Article Related Abbreviations: DAD, diode array detector; EFs, enrichment factors; FLD, fluorescence detector; MSPE, magnetic solid-phase extraction; PEEK, polyetheretherketone; r, correlation coefficients; UVD, ultraviolet detector. online extraction and detection [16]. The extraction coating plays a critical role in sensitivity, capability, and repeatability.…”