Electrochemically decorated network-like cobalt oxide nanosheets on nickel oxide nanoworms substrate as a sorbent for the thin film microextraction of diclofenac

Ghani, Milad; Ghoreishi, Sayed Mehdi; Salehinia, Shima; Mousavi, Narjessadat; Ansarinejad, Hanieh

doi:10.1016/j.microc.2018.12.044

Cited by 16 publications

(5 citation statements)

References 38 publications

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“…Notwithstanding this fact, our method still exhibits comparable linearity and LODs to those of previous studies exploiting LPME in combination with separation methods or electrochemical sensing. , The detection time is short in almost all electrochemical studies like this work (1 min), yet LC needs longer separation times. In terms of extraction, our method is faster than previously reported microextraction techniques. ,, Since all steps are carried out in-line and automatically, the total analysis time (∼30 min) with an extraction time of 10 min is also shorter compared to many research articles in which only extraction times are at least 20 min. ,, In the LPME-ECD couplings reported so far, there has not been an in-depth evaluation of the sample cleanup before and after extraction for complex matrices and on the potentially deleterious effects of organic solvents on the ECD signals. , Previous EME papers on microfluidics lacked full automation because of manual impregnation of the membranes and manual activation of some apparatus while using lengthy protocols for retrieval of the acceptor phase for detection. ,− On the contrary, the SI−μ-EME–ECD method is entirely unattended and requires only a small volume of samples with comparable extraction recoveries (with a total analysis time of 30 min) to those of previous articles incorporating microextraction approaches.…”

Section: Resultsmentioning

confidence: 95%

“…In terms of extraction, our method is faster than previously reported microextraction techniques. 26 , 31 , 47 Since all steps are carried out in-line and automatically, the total analysis time (∼30 min) with an extraction time of 10 min is also shorter compared to many research articles in which only extraction times are at least 20 min. 26 , 31 , 47 In the LPME-ECD couplings reported so far, there has not been an in-depth evaluation of the sample cleanup before and after extraction for complex matrices and on the potentially deleterious effects of organic solvents on the ECD signals.…”

Section: Resultsmentioning

confidence: 99%

“… 26 , 31 , 47 Since all steps are carried out in-line and automatically, the total analysis time (∼30 min) with an extraction time of 10 min is also shorter compared to many research articles in which only extraction times are at least 20 min. 26 , 31 , 47 In the LPME-ECD couplings reported so far, there has not been an in-depth evaluation of the sample cleanup before and after extraction for complex matrices and on the potentially deleterious effects of organic solvents on the ECD signals. 26 , 31 Previous EME papers on microfluidics lacked full automation because of manual impregnation of the membranes and manual activation of some apparatus while using lengthy protocols for retrieval of the acceptor phase for detection.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Programmable Millifluidic Platform Integrating Automatic Electromembrane Extraction Cleanup and In-Line Electrochemical Detection: A Proof of Concept

et al. 2022

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A fully automatic millifluidic sensing platform coupling in-line nonsupported microelectromembrane extraction (μ-EME) with electrochemical detection (ECD) is herein proposed for the first time. Exploiting the features of the second generation of flow analysis, termed sequential injection (SI), the smart integration of SI and μ-EME–ECD enables (i) the repeatable formation of microvolumes of phases for the extraction step in a membrane-less (nonsupported) arrangement, (ii) diverting the acceptor plug to the ECD sensing device, (iii) in-line pH adjustment before the detection step, and (iv) washing of the platform for efficient removal of remnants of wetting film solvent, all entirely unsupervised. The real-life applicability of the miniaturized sensing system is studied for in-line sample cleanup and ECD of diclofenac as a model analyte after μ-EME of urine as a complex biological sample. A comprehensive study of the merits and the limitations of μ-EME solvents on ECD is presented. Under the optimal experimental conditions using 14 μL of unprocessed urine as the donor, 14 μL of 1-nonanol as the organic phase, and 14 μL of 25 mM NaOH as the acceptor in a 2.4 mm ID PTFE tubing, an extraction voltage of 250 V, and an extraction time of 10 min, an absolute (mass) extraction recovery of 48% of diclofenac in urine is obtained. The proposed flow-through system is proven to efficiently remove the interfering effect of predominantly occurring organic species in human urine on ECD with RSD% less than 8.6%.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Programmable Millifluidic Platform Integrating Automatic Electromembrane Extraction Cleanup and In-Line Electrochemical Detection: A Proof of Concept

et al. 2022

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“…Ghani, Ghoreishi, and Azamati (2018) developed nickel oxide nanoworms which were created on the surface of a nickel film as a sorbent for TFME with HPLC-UV to study diclofenac in urine and plasma samples. The relative standard deviation for the analyte extraction at the spiked concentration of 5 μg/L was 4.7% (as intraday RSD; Ghani, Ghoreishi, Salehinia, et al, 2018). Moradi et al (2019) used acrylonitrile butadiene styrene nanofiber film as a novel and efficient nanosorbent for HS-TFME with GC-MS for the analysis of PAHs in drinking and industrial water samples and urine samples of a smoker and also a nonsmoker.…”

Section: Tfme Applicationsmentioning

confidence: 99%

Recent applications of microextraction sample preparation techniques in biological samples analysis

Daryanavard

Zolfaghari

Abdel-Rehim

et al. 2021

Biomedical Chromatography

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Analysis of biological samples is affected by interfering substances with chemical properties similar to those of the target analytes, such as drugs. Biological samples such as whole blood, plasma, serum, urine and saliva must be properly processed for separation, purification, enrichment and chemical modification to meet the requirements of the analytical instruments. This causes the sample preparation stage to be of undeniable importance in the analysis of such samples through methods such as microextraction techniques. The scope of this review will cover a comprehensive summary of available literature data on microextraction techniques playing a key role for analytical purposes, methods of their implementation in common biological samples, and finally, the most recent examples of application of microextraction techniques in preconcentration of analytes from urine, blood and saliva samples. The objectives and merits of each microextration technique are carefully described in detail with respect to the nature of the biological samples. This review presents the most recent and innovative work published on microextraction application in common biological samples, mostly focused on original studies reported from 2017 to date. The main sections of this review comprise an introduction to the microextraction techniques supported by recent application studies involving quantitative and qualitative results and summaries of the most significant, recently published applications of microextracion methods in biological samples. This article considers recent applications of several microextraction techniques in the field of sample preparation for biological samples including urine, blood and saliva, with consideration for extraction techniques, sample preparation and instrumental detection systems.

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“…There are various different approaches that can be employed toward the desorption of TF-SPME devices, and these techniques are chosen based on the characteristics of the compounds of interest and the composition of the TF-SPME device itself. Aside from TD, the second most common desorption method used for TF-SPME is liquid desorption (LD), commonly used in conjunction with liquid chromatography but also with various separation platforms [20][21][22][23]. LD utilizes an organic solvent (or a mixture of water and multiple organic solvents) to re-extract all compounds from the extraction phase before introduction of the now-analyte enriched liquid phase into an analytical instrument.…”

Section: Types Of Desorption Modes For Tf-spmementioning

confidence: 99%

Development, Optimization and Applications of Thin Film Solid Phase Microextraction (TF-SPME) Devices for Thermal Desorption: A Comprehensive Review

2019

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Through the development of solid phase microextraction (SPME) technologies, thin film solid phase microextraction (TF-SPME) has been repeatedly validated as a novel sampling device well suited for various applications. These applications, encompassing a wide range of sampling methods such as onsite, in vivo and routine analysis, benefit greatly from the convenience and sensitivity TF-SPME offers. TF-SPME, having both an increased extraction phase volume and surface area to volume ratio compared to conventional microextraction techniques, allows high extraction rates and enhanced capacity, making it a convenient and ideal sampling tool for ultra-trace level analysis. This review provides a comprehensive discussion on the development of TF-SPME and the applications it has provided thus far. Emphasis is given on its application to thermal desorption, with method development and optimization for this desorption method discussed in detail. Moreover, a detailed outlook on the current progress of TF-SPME development and its future is also discussed with emphasis on its applications to environmental, food and fragrance analysis.

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Electrochemically decorated network-like cobalt oxide nanosheets on nickel oxide nanoworms substrate as a sorbent for the thin film microextraction of diclofenac

Cited by 16 publications

References 38 publications

Programmable Millifluidic Platform Integrating Automatic Electromembrane Extraction Cleanup and In-Line Electrochemical Detection: A Proof of Concept

Programmable Millifluidic Platform Integrating Automatic Electromembrane Extraction Cleanup and In-Line Electrochemical Detection: A Proof of Concept

Recent applications of microextraction sample preparation techniques in biological samples analysis

Development, Optimization and Applications of Thin Film Solid Phase Microextraction (TF-SPME) Devices for Thermal Desorption: A Comprehensive Review

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