Ultrasound- and microwave-assisted extractions followed by hydride generation inductively coupled plasma optical emission spectrometry for lead determination in geological samples

Wełna, Maja; Borkowska‐Burnecka, J.; Popko, M.

doi:10.1016/j.talanta.2015.07.058

Cited by 13 publications

(6 citation statements)

References 29 publications

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“…To fulfil the direct sampling of Pb in blood samples, the HG reaction condition such as KBH4 or HNO3 is crucial to generate plumbane in such complicated matrix, and other conditions such as H3BO3 and K3 [Fe(CN)6] were consistent with the previous report. 53 The pH value of the waste liquid after the reaction of lead hydride was 8 as detected by pH test paper. 45 KBH4 is a reducing agent commonly used in HG, and it was thus on the other hand, excessive H2 produced from the HG process could interfere with the trap process of Pb in the DBD quartz tube.…”

Section: Sample Preparationmentioning

confidence: 99%

Fast and High Sensitive Analysis of Lead in Human Blood by Direct Sampling Hydride Generation Coupled with in situ Dielectric Barrier Discharge Trap

Liu

et al. 2020

ANAL. SCI.

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A direct sampling hydride generation (HG) system based on modified gas liquid separator (GLS) coupled with in situ dielectric barrier discharge (DBD) is first rendered to detect lead in blood samples. Herein, a triple-layer coaxial quartz tube was employed as DBD trap (DBDT) to replace the original atomizer of atomic fluorescence spectrometry (AFS) to satisfy the in situ preconcentration. After 40-fold dilution, foams generated from protein in a blood sample can be eliminated via the double-GLS set; and lead in a blood sample were generated as plumbane under 3.5% HNO3 (v:v) and 30 g/L NaOH with 8 g/L KBH4, 10 g/L H3BO3, and 5 g/L K3[Fe(CN)6]. Then, lead analyte was trapped on the DBD quartz surface by 9 kV discharging at 50 mL/min air; and subsequently released by 12 kV discharging at 110 mL/min H2. The absolute detection limit (LOD) for Pb was 8 pg (injection volume = 2 mL), and the linearity (R 2 > 0.997) range was 0.05 -50 μg/L. The results were in good agreement with that of blood certified reference materials (CRM), and spiked recoveries for real blood samples were 95 -104% within a relative standard deviation of 5% (RSD). Via gas phase enrichment, the established method improved analytical sensitivity (peak height) by 8 times. The entire analysis time including blood sample preparation can be kept to within 10 min. The combination of modified GLS and DBDT can facilitate the quickness, accuracy, and sensitivity, revealing a promising future for monitoring lead in blood to protect humans, especially children's health.

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Section: Sample Preparationmentioning

confidence: 99%

Fast and High Sensitive Analysis of Lead in Human Blood by Direct Sampling Hydride Generation Coupled with in situ Dielectric Barrier Discharge Trap

Liu

et al. 2020

ANAL. SCI.

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“…A circular metallic waveguide directs the focused microwaves toward the extraction vessel inside the microwave (monomode) cavity. This interaction promotes the initiation of mass transfer between the solute and extractant upon solvation [36].…”

Section: Maementioning

confidence: 99%

Antioxidant Activity of Sulfated Seaweeds Polysaccharides by Novel Assisted Extraction

Wu¹

2017

Solubility of Polysaccharides

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Seaweeds have an extremely numerous of species in the world and been able to be divided into several developmental systems. Broadly, three types of seaweeds can be defined according to their color: brown seaweeds, green seaweeds, and red seaweeds. Thousands of years ago, mankind used seaweeds as food and medicine. Seaweed extracts are gaining increasing attention due to their unique composition and the potential for widespread use in industry. A variety of novel (green) extraction techniques have been devised for converting seaweed biomass into seaweed extracts, such as enzyme-assisted extraction (EAE), microwave-assisted extraction (MAE), pressurized liquid extraction (PLE), supercritical fluid extraction (SFE), and ultrasound-assisted extraction (UAE), which are capable of extracting seaweeds' biologically active compounds without causing degradation. Seaweed extracts contain compounds, such as carbohydrates, proteins, minerals, oils, fats, and polyunsaturated fatty acids and abundant bioactive compounds, such as antioxidants, pigments, and sulfated seaweed polysaccharides (SWP), as well as antibacterial, antifungal, anti-inflammatory, antioxidation, antitumor, antiviral, and hypolipidemic effect. The purpose of this article is to describe the antioxidant activity of SWP of brown seaweeds, green seaweeds, and red seaweeds by novel assisted extraction.

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“…2 To protect human health, it is essential to monitor Pb levels in drinking water. A variety of atomic spectrometric methods, such as atomic absorption spectrometry (AAS), 3 atomic fluorescence spectrometry (AFS), 4 inductively coupled plasma mass spectrometry (ICP-MS), 5 inductively coupled plasma optical emission spectrometry (ICP-OES), 6 and microwave plasma optical emission spectrometry (MP-OES), 7 have been frequently used in the determination of Pb in laboratory with high sensitivity and accuracy. Unfortunately, due to their large size, high power consumption, and high cost, these atomic spectrometers designed for laboratory use are not suitable for field analysis.…”

Section: Introductionmentioning

confidence: 99%

High-sensitivity and field analysis of lead by portable optical emission spectrometry using a microplasma trap

Zhang

Liu

Mao

et al. 2022

J. Anal. At. Spectrom.

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Ultrasound- and microwave-assisted extractions followed by hydride generation inductively coupled plasma optical emission spectrometry for lead determination in geological samples

Cited by 13 publications

References 29 publications

Fast and High Sensitive Analysis of Lead in Human Blood by Direct Sampling Hydride Generation Coupled with in situ Dielectric Barrier Discharge Trap

Fast and High Sensitive Analysis of Lead in Human Blood by Direct Sampling Hydride Generation Coupled with in situ Dielectric Barrier Discharge Trap

Antioxidant Activity of Sulfated Seaweeds Polysaccharides by Novel Assisted Extraction

High-sensitivity and field analysis of lead by portable optical emission spectrometry using a microplasma trap

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