Solid‐phase nanoextraction of polychlorinated biphenyls in water and their determination by gas chromatography with electron capture detector

Piramoon, Shadi; Azar, Parviz Aberoomand; Tehrani, Mohammad Saber; Mohammadiazar, Sirwan; Tavassoli, Abdollah

doi:10.1002/jssc.201600720

Cited by 10 publications

(5 citation statements)

References 38 publications

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“…Noninvasively measuring cardiac metabolism in vivo could allow the early detection of the cardiotoxic effects of DOX on metabolism in patients, facilitating prophylactic treatment before the onset of irreversible functional decline. Radiolabeled analogs of glucose and fatty acids have previously been used with positron emission tomography/computed tomography (PET/CT) to detect changes in substrate uptake in the DOX-treated heart, which precede functional changes in rats 17 . However, these measurements pose a potential healthrisk to the patient due to the radioactive dose from both the tracer and the CT image acquisition for anatomical localization, although this is mainly a concern in pediatric patients.…”

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confidence: 99%

Early detection of doxorubicin-induced cardiotoxicity in rats by its cardiac metabolic signature assessed with hyperpolarized MRI

et al. 2020

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Doxorubicin (DOX) is a widely used chemotherapeutic agent that can cause serious cardiotoxic side effects culminating in congestive heart failure (HF). There are currently no clinical imaging techniques or biomarkers available to detect DOX-cardiotoxicity before functional decline. Mitochondrial dysfunction is thought to be a key factor driving functional decline, though real-time metabolic fluxes have never been assessed in DOX-cardiotoxicity. Hyperpolarized magnetic resonance imaging (MRI) can assess real-time metabolic fluxes in vivo. Here we show that cardiac functional decline in a clinically relevant rat-model of DOX-HF is preceded by a change in oxidative mitochondrial carbohydrate metabolism, measured by hyperpolarized MRI. The decreased metabolic fluxes were predominantly due to mitochondrial loss and additional mitochondrial dysfunction, and not, as widely assumed hitherto, to oxidative stress. Since hyperpolarized MRI has been successfully translated into clinical trials this opens up the potential to test cancer patients receiving DOX for early signs of cardiotoxicity.

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confidence: 99%

Early detection of doxorubicin-induced cardiotoxicity in rats by its cardiac metabolic signature assessed with hyperpolarized MRI

et al. 2020

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“…In this sense, magnetic (nano)materials, frequently combining magnetic nanoparticles and polymers, have been widely used in D-μSPE due to their easy retrieval by applying an external magnetic field [51]. Miniaturized versions (usually employing centrifuge microtubes) of the different alternatives have been proposed for sample volumes below 1 ml, using either ultrasound- [52], vortex- [53,54], or solvent-assisted dispersion [55].…”

Section: Dispersive Micro-solid Phase Extractionmentioning

confidence: 99%

Ultramicroextraction as a miniaturization of the already miniaturized. A step toward nanoextraction and beyond

Azorín

Benedé

Chisvert

2023

J of Separation Science

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Miniaturization of the analytical process has been a widespread trend, and the sample preparation stage is not exempted from this downscaling. Since the introduction of microextraction techniques as miniaturization of classical extraction techniques, they have become one of the strengths in this field. However, some of the original approaches to these techniques did not fully cover all the current principles of Green Analytical Chemistry. For this reason, during the last years, much emphasis has been placed on reducing/eliminating toxic reagents, reducing the amount of the extraction phase, and searching for new greener, and more selective extractant materials. On the other hand, even though high accomplishments have been achieved, the same attention has not always been paid to reducing the amount of sample, which is essential when treating low‐availability samples such as biological samples, or in developing portable devices. In this review, we intend to give the readership an overview of the advances toward further miniaturization of microextraction techniques. Finally, a brief reflection is made on the terminology used, or that should, in our opinion, be used to term these new generation of miniaturized microextraction approaches. To this regard, the term, ‘ultramicroextraction’ is proposed to refer to those approaches beyond microextraction.

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“…Afterwards, centrifugation is performed to recover the nanoparticles, and the analytes are recovered from them using various solvents. There have been several applications which adopted SPNE as a green extraction technique, e.g., the analysis of PAHs (polycyclic aromatic hydrocarbons) in drinking water [155,156] and polychlorinated biphenyls in environmental waters [157].…”

Section: Solid Phase Nanoextraction (Spne)mentioning

confidence: 99%

Green Approaches to Sample Preparation Based on Extraction Techniques

Aly

Górecki

2020

Molecules

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Preparing a sample for analysis is a crucial step of many analytical procedures. The goal of sample preparation is to provide a representative, homogenous sample that is free of interferences and compatible with the intended analytical method. Green approaches to sample preparation require that the consumption of hazardous organic solvents and energy be minimized or even eliminated in the analytical process. While no sample preparation is clearly the most environmentally friendly approach, complete elimination of this step is not always practical. In such cases, the extraction techniques which use low amounts of solvents or no solvents are considered ideal alternatives. This paper presents an overview of green extraction procedures and sample preparation methodologies, briefly introduces their theoretical principles, and describes the recent developments in food, pharmaceutical, environmental and bioanalytical chemistry applications.

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Solid‐phase nanoextraction of polychlorinated biphenyls in water and their determination by gas chromatography with electron capture detector

Cited by 10 publications

References 38 publications

Early detection of doxorubicin-induced cardiotoxicity in rats by its cardiac metabolic signature assessed with hyperpolarized MRI

Early detection of doxorubicin-induced cardiotoxicity in rats by its cardiac metabolic signature assessed with hyperpolarized MRI

Ultramicroextraction as a miniaturization of the already miniaturized. A step toward nanoextraction and beyond

Green Approaches to Sample Preparation Based on Extraction Techniques

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