2019
DOI: 10.2116/analsci.19p164
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Immobilized Activated Carbon as Sorbent in Solid Phase Extraction with Cold Vapor Atomic Absorption Spectrometry for the Preconcentration and Determination of Mercury Species in Water and Freshwater Fish Samples

Abstract: A new preconcentration method using solid phase extraction (SPE) was developed by immobilizing dithizone (DZ) and 1,4-diphenylsemicarbazide (DPC) on oxidative activated carbon and then using this for the speciation and preconcentration of mercury species (Hg(II) and MeHg(I)) by flow injection cold vapor atomic absorption spectrometry (FI-CVAAS). The SPE experimental conditions were investigated including pH, amount of adsorbent and flow rate. The elution parameters and effect of foreign ions were also elucidat… Show more

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Cited by 11 publications
(5 citation statements)
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“…In addition, Manthong et al 15 proposed a FIA system using PEDD for the determination of antioxidant ins commercial fruit juice and instant tea products. Thongsaw et al 16 reported on the use of SPE-FI-CVAAS for mercury detection, and applied it to freshwater fish samples. Another example is the development of flow-based spectrophotometry for immunoassays.…”
Section: Application Of Flow-based System For Quality Control and Foo...mentioning
confidence: 99%
“…In addition, Manthong et al 15 proposed a FIA system using PEDD for the determination of antioxidant ins commercial fruit juice and instant tea products. Thongsaw et al 16 reported on the use of SPE-FI-CVAAS for mercury detection, and applied it to freshwater fish samples. Another example is the development of flow-based spectrophotometry for immunoassays.…”
Section: Application Of Flow-based System For Quality Control and Foo...mentioning
confidence: 99%
“…The amount of heavy metals on the surface and in groundwater has increased during the last few years; consequently, there is a need for regular water quality assessments. 14 Frequently used techniques for heavy metal analysis include atomic absorption spectroscopy (AAS), 15 atomic uorescence spectroscopy, 16 and inductively coupled plasma-mass spectrometry (ICP-MS). 17 High versatility toward simultaneous metal detection, sensitivity, specicity, accurate detection, and detection limits in the femtomolar range are a few advantages of these methods 18 (Table 2).…”
Section: Introductionmentioning
confidence: 99%
“…The amount of heavy metals on the surface and in groundwater has increased during the last few years; consequently, there is a need for regular water quality assessments. 14 Frequently used techniques for heavy metal analysis include atomic absorption spectroscopy (AAS), 15 atomic fluorescence spectroscopy, 16 and inductively coupled plasma-mass spectrometry (ICP-MS). 17…”
Section: Introductionmentioning
confidence: 99%
“…In China, the emission limit of Hg and its compounds from flue gas of a coal-fired power plant are not permitted to exceed 0.03 mg m −3 . The commonly used analytical methods for measuring the Hg concentration in flue gas include cold vapor atomic absorption spectrometry, cold vapor atomic fluorescence spectrometry, Zeeman atomic absorption spectrometry, and UV differential optical absorption spectrometry, all of which measure the Hg element [7][8][9][10]. However, these methods have the disadvantages of off-line detection, complex operation steps, limited measurement accuracy, a long detection period, and the inability to adapt to harsh experimental conditions and other aspects, which make it difficult for them to meet the requirements of real-time line measurement of trace Hg in flue gas.…”
Section: Introductionmentioning
confidence: 99%