Study of a microwave digestion method for total arsenic determination in marine mussels by electrothermal atomic absorption spectrometry: application to samples from the Ria de Arousa

Curros-Gontad, Beatriz; Barciela‐Alonso, María Carmen; Bujan-Villar, M. D.; Peña‐Vázquez, Elena; Herbello-Hermelo, Paloma; Bermejo-Barrera, Pilar

doi:10.1007/s00217-008-0832-z

Cited by 4 publications

(5 citation statements)

References 33 publications

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“…The condition parameters of GF-AAS were also analyzed by using standard solution of arsenic, including ashing (1100-1300°C), atomizing (2000-2300°C) and cleaning ( 2600-2800°C). The modifier regent of 5 µL of 1000 ppm Pd(NO3)2 was used in this optimization [16]. Fortunately, all parameters can also analyze with a single measurement under the instrumental software.…”

Section: Resultsmentioning

confidence: 99%

“…Thus, chemical modifier in the arsenic determination is absolutely necessary. Pd(NO3)2 is the most used modifier for arsenic determination [16][17]. Each concentration of arsenic was performed with the triplicate measurements.…”

Section: Resultsmentioning

confidence: 99%

“…The working range is calculated by multiplying the maximum value, allowed by the regulation agency, by 0.1 and by 2. The reference limit for water is 10 ppm according to USEPA [16]. Therefore, the chosen working range varied from 1 to 20 ppb.…”

Section: Resultsmentioning

confidence: 99%

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Determination of Total Arsenic Using Microwave Digestion Technique-Graphite Furnace Atomic Absorption Spectrophotometry

Chansuvarn

2019

AMM

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The aim of this work was to validate the sample preparation using a microwave digestion for determination of total arsenic in a spiked soil. Graphite furnace atomic absorption spectrophotometer (GFAAS) technique was used to determine the total arsenic using palladium nitrate as a modifier agent. The instrumental detection was performed under the condition steps of drying, ashing, atomizing and cleaning to be 100, 1200, 2250 and 2600°C, respectively. The external calibration curve was constructed using the automatic program with the master standard of 20 ppb arsenic solution. It was found that linearity range was in the range of 1 to 20 ppb with R2>0.999. The LOD and LOQ were 0.10 and 1.0 ppb, respectively. Based on two microwave digestion programs, the total arsenic obtained from the preparation method with HF and without HF were also compared. The result showed that the arsenic content obtained from both methods did not significantly different at the 95% confidence limit. The percentage of recovery was 80.3 and 82.3% for the spiked samples of 2.5 and 10 ppb, respectively. The relative standard deviation was 2.15% (n=11). The results of this work confirm that the preparation method using microwave digestion provided the more advantages, such as rapid, a little volume of reagents, completely digestion.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Determination of Total Arsenic Using Microwave Digestion Technique-Graphite Furnace Atomic Absorption Spectrophotometry

Chansuvarn

2019

AMM

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“…This study aimed to investigate optimum conditions for the determination of As(III) and As(V) using FI-HGAAS and suitable procedure for sample preparation using MAD method to determine inorganic As species in hot chilli pepper and tomato samples 13,14 .…”

Section: Introductionmentioning

confidence: 99%

Determination of arsenic in chilli and tomato grown in North East Thailand

Thaharn¹,

Techawongstien²,

Chanthai

2014

ScienceAsia

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Heavy metals in edible fruits constitute a health hazard. We present an analytical procedure for determining inorganic arsenic (As) species in hot chilli pepper and tomato fruits at the red-ripe stage using microwave assisted digestion (MAD) followed by flow injection-hydride generation atomic absorption spectrometry (FI-HGAAS). The optimum conditions for the acid digestion method and arsenic hydride (AsH 3 ) determination were studied in detail. The plant sample (0.5 g) was digested with 5 ml of concentrated nitric acid by MAD programmed at 900 W for 35 min. Arsenite, As(III), in the acid digests could only be analysed by FI-HGAAS using 1% (v/v) HCl as a carrier solution and 0.5% (w/v) NaBH 4 in 0.04% (w/v) NaOH as a reducing agent, while total As content was determined after pre-reduction of arsenate, As(V), to As(III) with 2% (w/v) thiourea prior to measurement. The concentration of As(V) was then calculated as the difference between total As and As(III). Detection limits for As(III) and As(V) were 0.004 and 0.006 µg/l, respectively. The relative standard deviation of the data was less than 5% (n = 10). The recovery of the samples spiked with 10 µg/l As was 98-103%. The proposed method was applied to determine traces of As in six varieties of hot chilli pepper (0.55-0.88 µg/g As(III) and 0.22-0.93 µg/g As(V)) and seven varieties of tomato (0.36-0.64 µg/g As(III) and 0.22-0.60 µg/g As(V)) samples.

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“…In humans, high doses and/or long exposures to arsenic can lead to undesirable effects, such as, severe gastrointestinal toxicities, cardiac arrhythmias, development of malignancies, diabetes and even death. [10][11][12][13][14] The inhalation of cadmium particles or fumes during industrial operations is the main source of exposure of this toxic element that can be also found in cigarette smoke. Cadmium may cause severe damages to lung, liver, kidney, testis, brain and even to placenta.…”

Section: Introductionmentioning

confidence: 99%

Method validation for the quantification of As, Cd, Hg and Pb in blood by ICP-MS for monitoring purposes

et al. 2010

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Study of a microwave digestion method for total arsenic determination in marine mussels by electrothermal atomic absorption spectrometry: application to samples from the Ria de Arousa

Cited by 4 publications

References 33 publications

Determination of Total Arsenic Using Microwave Digestion Technique-Graphite Furnace Atomic Absorption Spectrophotometry

Determination of Total Arsenic Using Microwave Digestion Technique-Graphite Furnace Atomic Absorption Spectrophotometry

Determination of arsenic in chilli and tomato grown in North East Thailand

Method validation for the quantification of As, Cd, Hg and Pb in blood by ICP-MS for monitoring purposes

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