Speciation analysis of inorganic arsenic in natural water by carbon nanofibers separation and inductively coupled plasma mass spectrometry determination

Chen, Shizhong; Zhan, Xilin; Lu, Dan; Cheng, Long; Zhu, Li

doi:10.1016/j.aca.2008.12.018

Cited by 69 publications

(23 citation statements)

References 30 publications

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“…When using a highly sensitive detector, high EFs and PFs are relatively unimportant. Analytical instruments that have been used to determine trace elements include inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled plasma optical emission spectrometry (ICP-OES) [45,67,68]; inductively coupled plasma mass spectrometry (ICP-MS) [3,28,29,31,[69][70][71][72][73][74][75][76][77][78][79]; electrothermal atomic absorption spectrometry (ET-AAS) and graphite furnace atomic absorption spectrometry (GF-AAS) [4,12,33,36,38,48,[80][81][82][83][84][85][86][87]; hydride-generation atomic absorption spectrometry (HG-AAS) [88]; flame atomic absorption spectrometry (FAAS) [35, 89,90]; and atomic fluorescence spectrometry (AFS) [27,74,[91][92][93][94][95].…”

Section: Application In Trace Element Assaysmentioning

confidence: 99%

Recent trends in nanomaterial-based microanalytical systems for the speciation of trace elements: A critical review

Tseng

Hsu

Shiea

et al. 2015

Analytica Chimica Acta

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Section: Application In Trace Element Assaysmentioning

confidence: 99%

Recent trends in nanomaterial-based microanalytical systems for the speciation of trace elements: A critical review

Tseng

Hsu

Shiea

et al. 2015

Analytica Chimica Acta

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“…Other separation and preconcentration techniques for determination of arsenic in water samples include high performance liquid chromatography (HPLC) [16], capillary electrophoresis (CE) [17], ion-chromatography (IC) [18], liquid-liquid extraction (LLE) [19] solid phase extraction (SPE) [20], liquid phase microextraction (LPME) [21], co-precipitation [22] and cloud point extraction (CPE) [3]. Because these methods do not have a high enrichment factor and arsenic in these concentrations produces weak signals in flame, these methods are not used for pretreatment before arsenic determination by flame.…”

Section: Introductionmentioning

confidence: 99%

“…Whereas arsenic is known as a highly toxic element and exists at trace amounts in water, numerous attempts such as hydride generation coupled to atomic absorption spectrometry (HG-AAS) [6], hydride generation coupled to atomic fluorescence spectrometry (HG-AFS) [7], inductively coupled plasma with atomic emission spectrometry (ICP-AES) [8], inductively coupled plasma-mass spectrometry (ICP-MS) [9], electrothermal atomic absorption spectrometry in graphite furnace (ETAAS) [10] and electrochemical methods [11][12] have been made to determine arsenic amounts in water.…”

Section: Introductionmentioning

confidence: 99%

Determination of As(III) using developed dispersive liquid–liquid microextraction and flame atomic absorption spectrometry

Basiri¹,

Moinfar²,

Hosseini³

2011

International Journal of Environmental Analytical Chemistry

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The method relies on selective complexation of As(III) with a suitable chelating agent followed by dispersive liquid-liquid microextraction (DLLME) method. Flame atomic absorption spectrometry (FAAS) equipped with microsample introduction system was utilised for determination of As(III). 1-Undecanol and acetone were used as extraction solvent and disperser solvent respectively. Some effective parameters on complex formation and extraction have been optimised. Under the optimum conditions, the enrichment factor of 108 for As(III) was obtained from 9.8 mL of water samples. The calibration graph was linear in the range of 2-15 mg L À1 with detection limits of 0.60 mg L À1 for As(III). The relative standard deviation (R.S.D.) for ten replicate measurements of 5.00 m gL À1 of As(III) was 6.2%. Operation simplicity and high enrichment factors are the main advantages of DLLME for the determination of As(III) without necessity for hydride generation in water samples.Keywords: dispersive liquid-liquid microextraction; determination of As(III); flame atomic absorption spectrometry; water analysis 1. Introduction Arsenic is the twentieth most abundant element in the crust of earth, the fourteenth in the seawater and the twelfth in the human body. Arsenic and arsenic compounds are used in wood preservatives, glass manufacture, alloys, electronics, catalysts, food additives and veterinary chemicals [1].Nowadays, it is well known that the occurrence of arsenic in natural waters is not just associated with the geochemical environment where it is found. Direct releasing of arsenic to the environment can occur as a result of anthropogenic activities such as petrochemical industries. Arsenic is found in crude oil in concentrations ranging from 510 to 26.2 mg kg À1 , depending on the geographical origin of petroleum [2]. Arsenic exists in nature in the oxidation states þV (arsenate), þIII (arsenite), 0 (arsenic) and ÀIII (arsine). In the aqueous environment, inorganic arsenic appears commonly in the oxidation states þV and þIII as arsenous acid (As(III)), arsenic acid (As(V)), and their salts [3]. Inorganic compounds of As are more toxic than their organic ones and may be found in ground and surface waters [4]. As(III) is reported to be 25-60 times more toxic than As(V), and several hundred times more toxic than organic arsenicals (at least in the case of the mono and

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“…Based on speciation strategy S2b, analytical procedures for As 92 and Cr 94 speciation in natural and waste water samples were realized by using of carbon nanofibers and SWCNTs, respectively.…”

mentioning

confidence: 99%

Nanomaterials for elemental speciation

Karadjova

Dakova

Yordanova

et al. 2016

J. Anal. At. Spectrom.

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Speciation analysis of inorganic arsenic in natural water by carbon nanofibers separation and inductively coupled plasma mass spectrometry determination

Cited by 69 publications

References 30 publications

Recent trends in nanomaterial-based microanalytical systems for the speciation of trace elements: A critical review

Recent trends in nanomaterial-based microanalytical systems for the speciation of trace elements: A critical review

Determination of As(III) using developed dispersive liquid–liquid microextraction and flame atomic absorption spectrometry

Nanomaterials for elemental speciation

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