Fast Sequential Determination of As and Sb, Bi and Pb by Continuous Flow Hydride Generation Atomic Absorption Spectrometry

Batista, Érica Ferreira; Pessoa, Amália Geiza G.; Guerra, Marcelo Braga Bueno; Miranda, Kelber; Pereira-Filho, Edenir Rodrigues

doi:10.1007/s12161-012-9528-x

Cited by 7 publications

(4 citation statements)

References 34 publications

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“…In order to quantify antimony in the concentration level established by the various legislations, the analytical technique should have a low limit of quantification and good precision and accuracy. The analytical techniques most commonly employed to determine antimony in polymers and in beverages are graphite furnace atomic absorption spectrometry (GFAAS), fast sequential flame atomic absorption spectrometer (FS-FAAS), inductively coupled plasma optical emission spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS) with or without hydride generation, and X-ray fluorescence (XRF) (Cadore et al 2008;Guerra et al 2011;Shimamoto et al 2011;Batista et al 2013;Jesus et al 2016;Altunay et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Antimony Assessment in PET Bottles for Soft Drink

et al. 2017

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The aim of this work was to develop a method for the determination of antimony (Sb) in polyethylene terephthalate (PET) bottles and to evaluate its migration into soft drink and simulant. In this context, a new procedure for PET sample preparation, using a high pressure asher (HPA), is presented for the determination of Sb by inductively coupled plasma optical emission spectrometry (ICP-OES). The concentration of Sb in PET bottles ranged between 272 and 650 mg kg −1 . The migration of Sb into soft drink after 180 days at 35 °C was below the LOQ, 20 μg L −1 . The specific migration of Sb from the bottle into simulant 3% of acetic acid after the contact per 10 days at 40 °C was less than the LOQ, 23.5 μg L −1 . The results showed that all packaging evaluated contained Sb, but the maximum permissible migration value for Sb, 40 μg L −1 , established by Anvisa and EU, was never exceeded.

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Section: Introductionmentioning

confidence: 99%

Antimony Assessment in PET Bottles for Soft Drink

et al. 2017

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“…The system of CF-HG-AAS employed in this work was previously optimized. 19 It was composed by 8 channels peristaltic pump (MCP model; Ismatec, Wertheim, Germany), Tygon  propulsion tubes (Saint-Gobain, Courbevoie, France) with different diameters, a gas-liquid separator. A mass flow controller (ASA Srl, Sesto San Giovanni, MI, Italy) was utilized to control the carrier gas argon flow rate (White Martins, São Paulo, SP, Brazil).…”

Section: Instrumentationmentioning

confidence: 99%

Strategy of Sample Preparation for Arsenic Determination in Mineral Fertilizers

Machado¹,

Pereira-Filho²,

Nogueira³

2016

Journal of the Brazilian Chemical Society

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A method for determination of arsenic in mineral fertilizers by continuous flow hydride generation atomic absorption spectrometry (CF-HG-AAS) was developed by using diluted acid and digester block with perfluoroalkoxy (PFA) tubes to sample preparation. An additional sample preparation procedure using microwave-assisted digestion was evaluated and compared with the proposed procedure. A full factorial design was applied to investigate the effect of the variables and the best conditions found were 7 mol L −1 HNO 3 + 30% (m/m) H 2 O 2 as reagents, 4 h of digestion and concentration of reagents diluted 1:1. The effect of concomitants on the analytical signal of arsenic was investigated and no one significant interference was observed, with recoveries ranged from 97 to 103%. The accuracy of proposed method was evaluated by certified reference material (NIST SRM 695) and recovery of 95% was obtained. The arsenic concentration (8.9 ± 0.2 mg kg −1 ) found in the fertilizer is below of maximum concentration established by Brazilian legislation.

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“…28 According to the study, lead poisoning was also responsible for 230,000 premature deaths in India. In light of these concerns, there has been a growing effort to develop innovative strategies for lead ion detection These approaches include conventional methods such as inductively coupled plasma mass spectrometry (ICP-MS), 29,30 atomic absorption spectrometry (AAS), 31,32 atomic emission spectrometry (AES), 33,34 stripping voltammetry (SV), 35,36 and other emerging methods such as colorimetric-, fluorimetric-, and aptamer-based sensors. 37−42 Among these methods, colorimetric methods have garnered substantial interest due to their cost-effectiveness and ease of naked-eye detection, while fluorimetric sensors have been highly regarded for their superior sensitivity and dependable performance.…”

Section: Introductionmentioning

confidence: 99%

“…These approaches include conventional methods such as inductively coupled plasma mass spectrometry (ICP-MS), , atomic absorption spectrometry (AAS), , atomic emission spectrometry (AES), , stripping voltammetry (SV), , and other emerging methods such as colorimetric-, fluorimetric-, and aptamer-based sensors. − Among these methods, colorimetric methods have garnered substantial interest due to their cost-effectiveness and ease of naked-eye detection, while fluorimetric sensors have been highly regarded for their superior sensitivity and dependable performance. Dual-output colorimetric and fluorimetric sensors provide the benefit of both easy visual detection and enhanced sensitivity opening a scope for on-field applications …”

Section: Introductionmentioning

confidence: 99%

Alendronate-Modified Polydiacetylene (PDA) Dual-Mode Sensor for the Selective Detection of Lead(II) Ions up to the nM Level in Solutions and Agarose Films

Thakuri,

Acharya,

Banerjee

et al. 2023

ACS Appl. Polym. Mater.

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Lead contamination in humans has been linked to several health risks, such as anemia, cardiovascular problems, renal failure, and irreversible neurological damage. This necessitates the development of efficient sensing tools for low-level detection of lead contamination in water. In this study, we report the design and development of polydiacetylenes (PDAs)-based highly sensitive dual-output sensor for the detection of lead ions in solution and solid phase. Specifically, 10,12-pentacosadiynic acid (PCDA)-derived vesicles were surface modified with alendronate units (PCDA-Alen) to enable specific recognition of lead ions in the presence of other metal ions and possible interfering species. Upon UV irradiation (254 nm), PCDA-Alen displayed a characteristic blue color that, on interaction with lead ions, exhibited a characteristic color transition from blue to red accompanied by a gradual increase in fluorescence emission at λ max 642 nm. PCDA-Alen was indifferent to a variety of cations or anions and displayed detection limits of 16.8 and 3.1 ppb toward lead in UV−vis and fluorescence spectroscopy, respectively, and thus acts as a dual-output sensor. The real sample studies by spiking Pb 2+ in samples collected from various natural water bodies demonstrated excellent recovery. PCDA-Alen vesicles immobilized on agarose matrix enabled naked-eye detection of lead ions above 0.5 μM in the solid phase, showcasing exceptional lab-on-film-based detection capabilities, thereby expanding their potential for real-world applications in the detection of lead ions in environmental and biological samples.

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Fast Sequential Determination of As and Sb, Bi and Pb by Continuous Flow Hydride Generation Atomic Absorption Spectrometry

Cited by 7 publications

References 34 publications

Antimony Assessment in PET Bottles for Soft Drink

Antimony Assessment in PET Bottles for Soft Drink

Strategy of Sample Preparation for Arsenic Determination in Mineral Fertilizers

Alendronate-Modified Polydiacetylene (PDA) Dual-Mode Sensor for the Selective Detection of Lead(II) Ions up to the nM Level in Solutions and Agarose Films

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