Development of a ‘collect and punch’ cold vapour inductively coupled plasma mass spectrometric method for the direct determination of mercury at nanograms per litre levels

Karunasagar, D.; Arunachalam, J.; Gangadhaŕan, S.

doi:10.1039/a802132e

Cited by 150 publications

(60 citation statements)

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“…[9,10] A number of analytical methods are available in the literature for the estimation of silver ion concentration; however, they suffer from being costly, time-consuming, and tedious protocols. [11,12] The development of fluorescent chemosensors with high sensitivity, high selectivity, a low detection limit, and a broad detection range has been receiving considerable attention because of their vital role in biological, medical, and environmental analysis. [13] However, the detection of silver in aqueous medium remains challenging because of the low solubility of chemosensors in aqueous medium.…”

Section: Introductionmentioning

confidence: 99%

Nanomolar Detection of Ag^I Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

2014

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The synthesis of fluorescent organic nanoparticles (FONPs) with an imine‐linked 1,8‐naphthalimide‐based dipodal chemosensor for AgI is described. The FONPs were prepared by using a re‐precipitation method, and they were successfully applied for the nanomolar detection of AgI ions in aqueous media. More specifically, the chemosensor was utilized for the selective and ratiometric sensing of AgI in a concentration range 15–65 nM with a 15.5 nM detection limit. The work was extended to monitor the AgI concentration in samples of environmental importance.

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Section: Introductionmentioning

confidence: 99%

Nanomolar Detection of Ag^I Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

2014

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“…The most common techniques that have been reported for the determination of total mercury in natural samples include inductively coupled plasma mass spectrometry (ICP-MS [1]), inductively coupled plasma atomic emission spectrometry (ICP-AES [2,3]), gas chromatography coupled to atomic absorption spectrometry (GC-AAS [4 -6]), cold vapor atomic absorption spectrometry (CV-AAS [7 -10]) and atomic fluorescence spectrometry (AFS [11,12]). These techniques are very expensive and suffer from many complicated processing steps.…”

mentioning

confidence: 99%

Determination of Mercury by Chronopotentiometric Stripping Analysis Using Glassy Carbon Vessel as a Working Electrode

Švarc‐Gajić¹,

Suturović²,

Marjanović³

et al. 2006

Electroanalysis

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In this work chronopotentiometric stripping analysis of mercury was performed using a process vessel of glassy carbon as a working electrode. Experimental parameters for both steady and rotating vessel were investigated and compared. Relative sensitivity as well as the sharpness of the analytical signal was better when the rotation of the process vessel was performed. The new design provided better sensitivity when compared to both stationary and rotating glassy carbon disk electrodes. Detection limit obtained for the electrolysis time of 600 s was 0.1 ng/L of Hg(II). The accuracy of the technique was confirmed by analyzing the standard reference material -tomato leaves.

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“…Concerns over the toxic side effects of mercury have persistently motivated the exploration for simple and fast detection of aqueous Hg(II) ions. Up to date, several classical techniques have been widely used to monitor concentration levels of mercury in water samples, such as atomic absorption spectroscopy (AAS) [3], inductively coupled plasma-mass spectrometry (ICP-MS) [4], atomic fluorescence spectrometry (AFS) [5], and high performance liquid chromatography (HPLC) [6]. However, their excellent performance is achieved at the expenses of expensive instruments, complicated manipulations and time-consuming sample preparation processes.…”

Section: Introductionmentioning

confidence: 99%

A Concentration-Controllable Microfluidic Droplet Mixer for Mercury Ion Detection

et al. 2015

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Abstract:A microfluidic droplet mixer is developed for rapid detection of Hg(II) ions. Reagent concentration and droplets can be precisely controlled by adjusting the flow rates of different fluid phases. By selecting suitable flow rates of the oil phase, probe phase and sample phase, probe droplets and sample droplets can be matched and merged in pairs and subsequently well-mixed in the poly (dimethylsiloxane) (PDMS) channels. The fluorescence enhancement probe (Rhodamine B mixed with gold nanoparticles) encapsulated in droplets can react with Hg(II) ions. The Hg(II) ion concentration in the sample droplets is adjusted from about 0 to 1000 nM through fluid regulation to simulate possible various contaminative water samples. The intensity of the emission fluorescence is sensitive to Hg(II) ions (increases as the Hg(II) ion concentration increases). Through the analysis of the acquired fluorescence images, the concentration of Hg(II) ions can be precisely detected. With the advantages of less time, cost consumption and easier manipulations, this device would have a great potential in micro-scale sample assays and real-time chemical reaction studies.

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Development of a ‘collect and punch’ cold vapour inductively coupled plasma mass spectrometric method for the direct determination of mercury at nanograms per litre levels

Cited by 150 publications

References 10 publications

Nanomolar Detection of Ag^I Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

Nanomolar Detection of Ag^I Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

Determination of Mercury by Chronopotentiometric Stripping Analysis Using Glassy Carbon Vessel as a Working Electrode

A Concentration-Controllable Microfluidic Droplet Mixer for Mercury Ion Detection

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Development of a ‘collect and punch’ cold vapour inductively coupled plasma mass spectrometric method for the direct determination of mercury at nanograms per litre levels

Cited by 150 publications

References 10 publications

Nanomolar Detection of AgI Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

Nanomolar Detection of AgI Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

Determination of Mercury by Chronopotentiometric Stripping Analysis Using Glassy Carbon Vessel as a Working Electrode

A Concentration-Controllable Microfluidic Droplet Mixer for Mercury Ion Detection

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Product

Resources

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Nanomolar Detection of Ag^I Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

Nanomolar Detection of Ag^I Ions in Aqueous Medium by Using Naphthalimide‐Based Imine‐Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples