Development and validation of stir bar sorptive extraction of polar phenols in water followed by HPLC separation in poly(vinylpyrrolididone‐divinylbenzene) monolith

Abstract

Development and validation of stir bar sorptive extraction of polar phenols in water followed by HPLC separation in poly(vinylpyrrolididonedivinylbenzene) monolith An effective and simple method for polar phenols in water matrix was developed by using stir bar sorptive extraction (SBSE) based on a hydrophilic poly(vinylpyrrolididone-divinylbenzene) (VPDB) monolithic material and HPLC analysis. To achieve optimum extraction performance for phenols, several parameters, including extraction and desorption time, desorption solvent, pH value, and ionic strength of sample matrix, were investigated. Under the optimized experimental conditions, eight phenols were directly enriched from water samples and analyzed by HPLC-DAD. The detection limits (S/N = 3) and quantification limits (S/N = 10) of the proposed method for the target compounds were achieved within the range of 0.72 -1.37 and 2.40 -4.27 ng/mL from spiked water, respectively. Recoveries of eight phenolic compounds were found in the range of 55.2 -95.9%. The calibration curves showed the linearity ranging from 5 to 150 ng/mL with linear regression coefficient R 2 values above 0.98. Method repeatability presented as intra-and interday precisions were also found with the RSDs less than 4.10 and 7.61%, respectively. The distribution coefficients between VPDB and water (K VPDB/W ) for phenolic compounds were also calculated and compared with K O/W . Finally, the proposed method was successfully applied to the determination of the target compounds in tap water, sea water and wastewater samples.

Transport of phenol through polymer inclusion membrane with N,N-di(1-methylheptyl) acetamide as carriers from aqueous solution

“…It has been found that phenol produces many adverse effects on fish and aquatic ecosystem when chronically exposed even at a low concentration [2,3]. Therefore, their treatments must be accomplished before the solution can be safely discharged into the nature water resources.…”

Octadecyl-Modified Graphene as an Adsorbent for Hollow Fiber Liquid Phase Microextraction of Chlorophenols from Honey

“…For the evaluation of the current method, it was compared with the other reported methods coupled with HPLC, such as ultrasoundassisted headspace liquid-phase microextraction (UAHS-LPME), 28 solid-phase microextraction with micellar desorption (SPME-MD), 29 stir bar sorptive extraction (SBSE), magnetic solid-phase extraction (MSPE), 31 SPE, 32 ultrasoundassisted HF-LLLME (UA-HF-LLLME), 33 hollow fiberbased supported liquid membrane (HFSLM) 34 and three phase HF-LPME 35 for the determination of CPs from the viewpoint of linear ranges (LRs), LODs, and RSDs. The comparison results are shown in Table 3.…”

Extraction and stirring integrated techniques: examples and recent advances

“…In this context, Huang et al proposed a new monolithic stir-bar for extraction of phenols, avoiding the previous derivatization step [33], simplifying the extraction procedure, and protecting the stir-bar from the negative effects of derivatizing reagents. In a similar way, different monolithic stir-bars have been proposed for extraction of analytes covering a wide range of polarity [34][35][36][37]. Moreover, use of a monolithic stir-bar can simplify the overall extraction procedure, as is reported for extraction of sulfonamides from milk [38].…”