In‐syringe ionic liquid‐dispersive liquid–liquid microextraction coupled with HPLC for the determination of trans,trans‐muconic acid in human urine sample

Abbaszadeh, Sepideh; Yousefinejad, Saeed; Jafari, Saeed; Soleimani, Esmaeel

doi:10.1002/jssc.202100044

Cited by 12 publications

(2 citation statements)

References 39 publications

(43 reference statements)

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“…Up to now, various modern, high-throughput, miniaturized sample preparation techniques coupled with analytical instruments have been introduced for trace monitoring of t,t-MA in urine samples 17 – 19 . Due to low organic solvent consumption and high preconcentration factor, dispersive liquid–liquid microextraction (DLLME) and dispersive solid-phase microextraction (SPME) methods are among the most popular methods.…”

Section: Introductionmentioning

confidence: 99%

Solidified floating organic droplet microextraction coupled with HPLC for rapid determination of trans, trans muconic acid in benzene biomonitoring

Dehghani

Omidi

Heravizadeh

et al. 2021

Sci Rep

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Benzene is one of the carcinogenic compounds in the work environments. Exposure assessment of benzene through biological monitoring is an acceptable way to accurately measure the real exposure in order to conducting the health risk assessment, but it is always complicated, laborious, time consuming and costly process. A new sensitive, simple, fast and environmental friendly method was developed for the determination of urinary metabolite of benzene, trans trans muconic acid (t,t-MA) by dispersive liquid–liquid micro extraction based on solidification of floating organic droplet coupled with high-performance liquid chromatography with ultra violet detector. Central composite design methodology was utilized to evaluate the effective factors on the extraction output of the target metabolite. The calibration curve was plotted in the concentration ranges of 0.02–5 µg mL−1. The precision and accuracy of the method were assayed via the relative standard deviation (RSD%) and relative recovery (RR%) using spiked samples with three replications. The RR% and RSD% of the optimized method were 86.9–91.3% and 4.3–6.3% respectively. The limit of detection (LOD) of the method was 0.006 µg mL−1. The level of t,t-MA in real samples was ranged from 0.54 to 1.64 mg/g creatinine. We demonstrated that t,t-MA can be extracted and determined by an inexpensive, simple and fast method.

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Section: Introductionmentioning

confidence: 99%

Solidified floating organic droplet microextraction coupled with HPLC for rapid determination of trans, trans muconic acid in benzene biomonitoring

Dehghani

Omidi

Heravizadeh

et al. 2021

Sci Rep

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“…Recently, novel extractants containing ionic liquids, deep eutectic solvents, switchable hydrophilic solvents (SHS) have been widely applied in DLPME. Based on different types of extractants, new DLPME methods have been developed, including deep eutectic solvent-DLLME [22][23], ionic liquid-DLLME [24], SHS-LPME [25][26].…”

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confidence: 99%

Switchable hydrophilic solvent‐based dispersive liquid‐liquid microextraction coupled with high‐performance liquid chromatography for the determination of four types of sulfonylurea herbicides in soils

Han

Yang

Hang

et al. 2022

J of Separation Science

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In this study, switchable hydrophilic solvent‐based dispersive liquid‐liquid microextraction coupled with high‐performance liquid chromatography was developed for the determination of four sulfonylurea herbicides in soils. For the first time, the sample pretreatment was achieved due to the similar acid‐base status of sulfonylurea herbicides and switchable hydrophilic solvent. In the extraction step, sulfonylurea herbicides were extracted as anions and transferred to an alkaline solution with switchable hydrophilic solvent anions. In the concentration step, two types of anions were transformed to their molecular state after the aqueous solution was acidified. In addition, the dispersion and microextraction processes were completed efficiently with the simultaneous formation of analytes and extractants. The factors affecting the extraction performance were optimized. Under the optimized conditions, good linearity was observed for each herbicide with correlation coefficients ranging from 0.9952 to 0.9978. The limits of detection were in the range of 0.1–0.2 μg/g. Moreover, the relative recoveries of the sulfonylurea herbicides at spiking levels of 0.5, 1, and 1.5 μg/g in soil samples were between 75 and 111% (relative standard deviations: 0.4–11.4%). Therefore, the proposed method in this study could be successfully applied to the analysis of four types of sulfonylurea herbicides in soil samples.

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A multifunctional fluorescent Eu‐MOF probe: Its synthesis, structure, and sensing properties

Su,

Li,

Yang

et al. 2024

Applied Organom Chemis

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Based on 3‐(2,4‐dicarboxylphenyl)‐6‐carboxylpyridine ligand (H3dpcp), a lanthanide metal–organic framework with the porous three‐dimensional structure was successfully synthesized, namely, [Eu (dpcp)(H2O)]n (1). The experimental results indicated that complex 1 exhibited stable luminescence in the range of pH = 2–11 in aqueous solution. It is noteworthy that complex 1 could recognize tryptophan (Trp) and trans, trans‐muconic acid (tt‐MA) molecules through the fluorescence quenching effect, and showed high sensitivity, selectivity, recoverability, anti‐interference, and low detection limits for the identification of Trp and tt‐MA in aqueous solution. In addition, the fluorescence mechanisms of complex 1 for sensing of tt‐MA and Trp were elucidated in detail.

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In‐syringe ionic liquid‐dispersive liquid–liquid microextraction coupled with HPLC for the determination of trans,trans‐muconic acid in human urine sample

Cited by 12 publications

References 39 publications

Solidified floating organic droplet microextraction coupled with HPLC for rapid determination of trans, trans muconic acid in benzene biomonitoring

Solidified floating organic droplet microextraction coupled with HPLC for rapid determination of trans, trans muconic acid in benzene biomonitoring

Switchable hydrophilic solvent‐based dispersive liquid‐liquid microextraction coupled with high‐performance liquid chromatography for the determination of four types of sulfonylurea herbicides in soils

A multifunctional fluorescent Eu‐MOF probe: Its synthesis, structure, and sensing properties

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