Flow Injection Hydride Generation Atomic Absorption Spectrometry for Determination of Arsenic in Water and Biological Samples from Arsenic-Affected Districts of West Bengal, India, and Bangladesh

Samanta, Gautam; Chowdhury, Trinath; Mandal, Badal Kumar; Biswas, Bhajan Kumar; Chowdhury, Uttam Kumar; Basu, Gautam; Chanda, C. R.; Lodh, Dilip; Chakraborti, Dipankar

doi:10.1006/mchj.1999.1713

Cited by 141 publications

(68 citation statements)

References 61 publications

(59 reference statements)

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“…Under the experimental conditions of FI-HG-AAS, arsenobetaine and arsenocholine do not produce a signal . The modes of sample collection, the digestion procedures for hair and nails, analytical procedures, and the details of the instrument and flow injection system were as described previously Das et al 1995;Samanta et al 1999).…”

Section: Environmental Health Perspectivesmentioning

confidence: 99%

Arsenic groundwater contamination in Middle Ganga Plain, Bihar, India: a future danger?

Chakraborti

Mukherjee

Pati

et al. 2003

Environ Health Perspect

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503

255

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The pandemic of arsenic poisoning due to contaminated groundwater in West Bengal, India, and all of Bangladesh has been thought to be limited to the Ganges Delta (the Lower Ganga Plain), despite early survey reports of arsenic contamination in groundwater in the Union Territory of Chandigarh and its surroundings in the northwestern Upper Ganga Plain and recent findings in the Terai area of Nepal. Anecdotal reports of arsenical skin lesions in villagers led us to evaluate arsenic exposure and sequelae in the Semria Ojha Patti village in the Middle Ganga Plain, Bihar, where tube wells replaced dug wells about 20 years ago. Analyses of the arsenic content of 206 tube wells (95% of the total) showed that 56.8% exceeded arsenic concentrations of 50 micro g/L, with 19.9% > 300 micro g/L, the concentration predicting overt arsenical skin lesions. On medical examination of a self-selected sample of 550 (390 adults and 160 children), 13% of the adults and 6.3% of the children had typical skin lesions, an unusually high involvement for children, except in extreme exposures combined with malnutrition. The urine, hair, and nail concentrations of arsenic correlated significantly (r = 0.72-0.77) with drinking water arsenic concentrations up to 1,654 micro g/L. On neurologic examination, arsenic-typical neuropathy was diagnosed in 63% of the adults, a prevalence previously seen only in severe, subacute exposures. We also observed an apparent increase in fetal loss and premature delivery in the women with the highest concentrations of arsenic in their drinking water. The possibility of contaminated groundwater at other sites in the Middle and Upper Ganga Plain merits investigation.

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Section: Environmental Health Perspectivesmentioning

confidence: 99%

Arsenic groundwater contamination in Middle Ganga Plain, Bihar, India: a future danger?

Chakraborti

Mukherjee

Pati

et al. 2003

Environ Health Perspect

Self Cite

503

255

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“…[1][2][3][4] The source of arsenic is the special underground geochemical condition by which arsenic is mobilized as soluble species in the groundwater, primarily, mobilization by dissolution within the sediment by virtual quantitative reduction of As(V) to As(III). [5][6][7][8] Groundwater is the primary source of drinking water for millions of people in Bangladesh and neighboring India.…”

Section: Introductionmentioning

confidence: 99%

Chemical Fate of Arsenic and Other Metals in Groundwater of Bangladesh: Experimental Measurement and Chemical Equilibrium Model

Hussam

Habibuddowla²,

Alauddin

et al. 2003

Journal of Environmental Science and Health, Part A

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The presence of toxic level of inorganic arsenic in groundwater used for drinking in Bangladesh and neighboring India is unfolding as one of the worst natural disaster in the region. The purpose of this work is to ascertain the chemical fate of arsenic and other metals in groundwater of Bangladesh. A combination of techniques was used to measure 24 metals, 6 anions, E h , pH, dissolved oxygen, conductivity, and temperature to understand the distribution of components which were then used in computational chemical equilibrium model, MINEQLþ, for detailed speciation. It was found that the fate of arsenic and its speciation were inextricably linked to the formation of hydrous ferric oxide (HFO) and its kinetic. The HFO induced natural attenuation removes 50-75% of total arsenic in first 24 h through a first order kinetics. Adsorption on HFO is the predominant mode of removal of arsenic, MARCEL DEKKER, INC. • 270 MADISON AVENUE • NEW YORK, NY 10016iron, manganese, and most trace metals. The equilibrium model points to the presence of excess active sites for the removal of arsenic. MINEQLþ shows that significantly higher concentration of HFO forming iron is required to remove arsenic below maximum contamination level (MCL) of 50 mg/L than predicted by stoichiometry. The practical implication of this work is the prediction of water quality based on models.

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“…Concentrations of arsenic in digested samples were determined using atomic absorption spectrophotometer (AAS), model PG -990 equipped with a computer with atomic absorption (AA) Win software (PG Instruments Ltd., UK) as described by Samanta et al (1999). Briefly, samples were spiked with standards at different concentrations.…”

Section: Detection Of Arsenicmentioning

confidence: 99%

Arsenic in rice and rice straw

et al. 2012

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Arsenic from groundwater affects people in Bangladesh via seed grains and forages. Samples of rice (Oryza sativa L) and rice straw were collected from arsenic-contaminated areas and arsenic concentration was measured using Flow Injection Hidride Generator Atomic Absorption Spectrophotometer (FI-HG-AAS) method. The concentrations in rice and rice straw were 0.235 ± 0.014 ppm (n = 48) and 1.149 ± 0.119 ppm (n = 51), respectively. Both were greater than the maximum permissible concentration in drinking water (0.05 ppm; WHO). (Bangl. vet.

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Flow Injection Hydride Generation Atomic Absorption Spectrometry for Determination of Arsenic in Water and Biological Samples from Arsenic-Affected Districts of West Bengal, India, and Bangladesh

Cited by 141 publications

References 61 publications

Arsenic groundwater contamination in Middle Ganga Plain, Bihar, India: a future danger?

Arsenic groundwater contamination in Middle Ganga Plain, Bihar, India: a future danger?

Chemical Fate of Arsenic and Other Metals in Groundwater of Bangladesh: Experimental Measurement and Chemical Equilibrium Model

Arsenic in rice and rice straw

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