2019
DOI: 10.1002/jssc.201900010
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Bare polyprolylene hollow fiber as extractive phase for in‐tube solid‐phase microextraction to determine estrogens in water samples

Abstract: Polypropylene hollow fibers as the adsorbent were directly filled into a polyetheretherketone tube for in-tube solid-phase microextraction. The surface properties of hollow fibers were characterized by a scanning electron microscope. Combined with high performance liquid chromatography, the extraction tube showed good extraction performance for five environmental estrogen hormones. To achieve high analytical sensitivity, four important factors containing sampling volume, sampling rate, content of organic solve… Show more

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Cited by 19 publications
(13 citation statements)
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“…Furthermore, the precision of this online method is better than all offline methods by comparing RSD values. Maximum concentration value of the method in the linear range is only comparable to in‐tube SPME‐HPLC‐DAD and less than others, due to its high enrichment efficiency to estrogens.…”
Section: Resultsmentioning
confidence: 87%
See 1 more Smart Citation
“…Furthermore, the precision of this online method is better than all offline methods by comparing RSD values. Maximum concentration value of the method in the linear range is only comparable to in‐tube SPME‐HPLC‐DAD and less than others, due to its high enrichment efficiency to estrogens.…”
Section: Resultsmentioning
confidence: 87%
“…Several important parameters, including LODs, linear ranges, RSDs, extraction time, and analysis mode, are listed in Table . LODs of this method are obviously lower than some methods and can be comparable than other methods . According to extraction time, the analytical speed of the method is superior over stir cake sorptive extraction‐HPLC‐DAD , capsule SPME‐HPLC‐DAD , and in‐tube SPME‐HPLC‐DAD .…”
Section: Resultsmentioning
confidence: 93%
“…In this case, one of the most popular fibers is polypropylene hollow fiber. Because of its low cost, high porosity, simple operation, high surface area, and good stability, it is used for FIT-SPME with different modifications [17]. Polypropylene hollow fiber was directly applied for intube SPME as the absorbent which was placed into the PEEK tube to evaluate five environmental estrogen hormones [17].…”
Section: Introductionmentioning
confidence: 99%
“…Because of its low cost, high porosity, simple operation, high surface area, and good stability, it is used for FIT-SPME with different modifications [17]. Polypropylene hollow fiber was directly applied for intube SPME as the absorbent which was placed into the PEEK tube to evaluate five environmental estrogen hormones [17]. In this work, magnetic nanoparticles of Fe 3 O 4 were dispersed in the pores of the polypropylene hollow fiber to provide mechanical stability and increase the surface area to improve extraction ability [18].…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, it is necessary to concentrate and purify the analytes present in water samples. Many methods have been proposed for extraction of hormones from an aqueous matrix, such as SPE , ultrasonic liquid extraction , dispersive‐SPE sorbent , micro‐SPE , molecularly imprinted solid‐phase extraction (MISPE) , magnetic‐SPE , stir bar sorptive extraction , SPME , stir cake sorptive extraction , fabric phase sorptive extraction and LLE. Due to the low cost of analysis and high sample recovery, the most commonly used technique for concentration and purification of such samples is SPE; however, popular sorbents are characterized by low selectivity that leads to simultaneous extraction of matrix elements .…”
Section: Introductionmentioning
confidence: 99%