Photometric measurement of trace As(III) and As(V) in drinking water

Dasgupta, Purnendu Κ.; Huiliang, Huang; Zhang, Genfa; Cobb, George P.

doi:10.1016/s0039-9140(02)00264-3

Cited by 64 publications

(43 citation statements)

References 30 publications

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“…44 The other group used an anion exchange column and achieved a detection limit of less than 8 ppb for total arsenic. 45 The current state of the science and technology for colorimetric assays is summarized in Table 1. All of these assays are limited to detecting inorganic arsenic, and all arsenic species must be converted to arsenate, or arsenite, depending on the specific assay applied.…”

Section: Research Efforts For Colorimetric Field Kitsmentioning

confidence: 99%

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Environmental Chemistry of Arsenic

Frankenberger¹

2001

105

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This report reviews field assays and other technologies with the potential to measure and monitor arsenic in the environment. The strengths and weaknesses of the various assays are discussed with respect to their sensitivity, ability to detect the chemical states of arsenic, performance in various media, potential interferences, and ease of operation. The report, which relies mainly on government documents and the published literature, examines the state of the science and development efforts of selected technologies.

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Section: Research Efforts For Colorimetric Field Kitsmentioning

confidence: 99%

“…59,60 A common criticism of using electrochemical methods in the field is electrode fragility. 45 However, in one study, a gold microelectrode array lasted 30 days. 60 This experiment is a good first step in developing this technology in rugged field instruments as well as remote long-term sensors.…”

Section: Research Efforts Dedicated To Asvmentioning

confidence: 99%

Environmental Chemistry of Arsenic

Frankenberger¹

2001

105

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“…HPAs have been extensively used in analytical chemistry for determination and removal of metal ions like phosphates (49,(53)(54)(55), arsenates (55)(56)(57)(58), arsenic (57)(58)(59)(60)(61)(62)(63)(64), silicates (65)(66)(67)(68), and many other ions (69, 70) from aqueous solutions. They have also other applications in aqueous systems (71).…”

Section: Hpa-water Systemmentioning

confidence: 99%

Heteropoly acids-catalyzed organic reactions in water: doubly green reactions

Heravi

Fard

Faghihi

2013

Green Chemistry Letters and Reviews

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The organic reactions in water, as the most significant green solvent, have attracted much attention due to their unique properties over conventional organic ones. In the catalytic area, heteropoly acids (HPAs) are also promising green solid acids to replace environmentally harmful liquid acid catalysts. Herein, we wish to report the organic reactions catalyzed by HPAs, their salt, and polyoxometalates (POMs) in aqueous systems.

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“…Out of various instrumental methodologies like hydride generative inductively coupled plasma atomic emission spectrometry (HG-ICP-AES), capillary electrophoresis inductively coupled plasma mass spectrometry (CE-ICP-MS), high performance liquid chromatography-inductively coupled plasma mass spectroscopy (HPLC-ICP-MS), [18][19][20][21][22][23][24][25][26][27][28][29] and fluorescence method, the last one is well recognized to be less expensive, non-destructive, easy to operate and ensuring a low detection limit. All these factors make this method very attractive in environmental chemistry, medicine and biology, [30][31][32][33][34] offering a promising approach for fast and simple tracking of As species in real samples.…”

Section: Introductionmentioning

confidence: 99%