Speciation of inorganic selenium in environmental water samples by inductively coupled plasma optical emission spectrometry after preconcentration by using a mesoporous zirconia coating on coal cinder

Wei, Xiaoshu; Wu, Yiwei; Guo, Jing; Sun, Hongli

doi:10.1002/jssc.201301387

Cited by 7 publications

(2 citation statements)

References 51 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, selenium is analyzed by a variety of methods, including Atomic Fluorescence Spectrophotometry (AFS) [12], Hydride Generation Atomic Absorption Spectrometry (HG-AAS) [13,14], Inductively Coupled Plasma Mass Spectrometry (ICP-MS) [15][16][17], Capillary Electrophoresis (CE) [18][19][20], and Inductively Coupled Plasma Emission Spectrometry (ICP-OES) [21], which are all techniques used by various regulatory agencies. These traditional methods are limited to laboratory measurements.…”

Section: Introductionmentioning

confidence: 99%

Field Determination and Spatial Distribution of Se (IV) in Coastal Seawater of China

Liu,

Pan,

Wei

et al. 2024

JMSE

View full text Add to dashboard Cite

A portable electrochemical system based on rGO/AuNPs/Nafion was constructed for selenium (IV) field determination in coastal seawater of the North Yellow Sea, East China Sea and South China Sea. This system demonstrated a low determination limit (0.03 μg/L), a wide linear range of concentration (0.1–30 μg/L), exceptional reproducibility and repeatability, and excellent selectivity. Each individual, entire test could be accomplished within 8 min. In Yantai Sishili Bay, the Se (IV) concentrations ranged from 0.16–3.59 μg/L (average 1.43 μg/L). In Shengshan Island, the Se (IV) concentrations ranged from 0.20–5.18 μg/L (average 2.06 μg/L). In Zhelin Bay, the Se (IV) concentrations ranged from 0.87–4.87 μg/L (average 3.13 μg/L). The average concentrations of Se (IV) in surface seawater showcased an increasing trend from the north to the south of China, suggesting Zhelin Bay > Shengshan Island > Sishili Bay. The system develops a new, competitive method for water quality assessment, and contributes to the accurate study of the biogeochemical cycles of selenium.

show abstract

Section: Introductionmentioning

confidence: 99%

Field Determination and Spatial Distribution of Se (IV) in Coastal Seawater of China

Liu,

Pan,

Wei

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

“…Organic species of selenium have lower toxicity and higher bioavailability than its inorganic species [21,22]. In addition, it is known that selenate is less toxic inorganic species than selenite [23,24]. Hence, inorganic selenium and Se-Met determination by an accurate and reliable analytical method is a requirement to enable scientist to develop studies regarding selenium bioavailability and toxicity.…”

Section: Introductionmentioning

confidence: 99%

Determination of selenite and selenomethionine in kefir grains by reversed‐phase high‐performance liquid chromatography–inductively coupled plasma‐optical emission spectrometry

Bodur

Öner

Erarpat

et al. 2021

J of Separation Science

View full text Add to dashboard Cite

A new and efficient reversed‐phase high‐performance liquid chromatography–inductively coupled plasma–optical emission spectrometry method was developed for the simultaneous separation and determination of SeO32– and seleno‐dl‐methionine in kefir grains. For the system, limits of detection and quantitation values for SeO32– and seleno‐dl‐methionine were calculated as 0.52/1.73 mg/kg (as Se) and 0.26/0.87 mg/kg (as Se), respectively. After performing the system analytical performance, recovery experiment was done for kefir grains and percent recovery results for SeO32– and seleno‐dl‐methionine were calculated as 98.4 ± 0.8% and 93.6 ± 1.0%, respectively. It followed by the feeding studies that the kefir grains were exposed to three different concentrations of SeO32– (20, 30, and 50 mg/kg) for approximately 4 days at room temperature to investigate the conversion/non‐conversion of SeO32– to seleno‐dl‐methionine. Next, the fed grains were extracted with tetramethylammonium hydroxide pentahydrate solution (20%, w/w) and then sent to the developed system. There was no detectable seleno‐dl‐methionine found in fed kefir grains at different concentrations of SeO32– while inorganic or elemental selenium in the fed kefir grains was determined between 1579.5 – 3116.0 mg/kg (as Se). Selenium species in the kefir grains samples was found in the form of SeO32– proved by using an anion exchange column.

show abstract

Selenium speciation in tea by dispersive liquid–liquid microextraction coupled to high‐performance liquid chromatography after derivatization with 2,3‐diaminonaphthalene

Zhou

Lei

et al. 2015

J of Separation Science

View full text Add to dashboard Cite

Selenium is an important element for human health, and it is present in many natural drinks and foods. Present study described a new method using dispersive liquid-liquid microextraction prior to high-performance liquid chromatography with a UV variable wavelength detector for the determination of the total selenium, Se(IV), Se(VI), and total organoselenium in tea samples. In the procedure, 2,3-diaminonaphthalene was used as the chelating reagent, 400 μL acetonitrile was used as the disperser solvent and 60 μL chlorobenzene was used as the extraction solvent. The complex of Se(IV) and 2,3-diaminonaphthalene in the final extracted phase was analyzed by high-performance liquid chromatography. The factors influencing the derivatization and microextraction were investigated. Under the optimal conditions, the limit of detection was 0.11 μg/L for Se(IV) and the linearity range was in the range of 0.5-40 μg/L. This method was successfully applied to the determination of selenium in four tea samples with spiked recoveries ranging from 91.3 to 100%.

show abstract

Speciation of inorganic selenium in environmental water samples by inductively coupled plasma optical emission spectrometry after preconcentration by using a mesoporous zirconia coating on coal cinder

Cited by 7 publications

References 51 publications

Field Determination and Spatial Distribution of Se (IV) in Coastal Seawater of China

Field Determination and Spatial Distribution of Se (IV) in Coastal Seawater of China

Determination of selenite and selenomethionine in kefir grains by reversed‐phase high‐performance liquid chromatography–inductively coupled plasma‐optical emission spectrometry

Selenium speciation in tea by dispersive liquid–liquid microextraction coupled to high‐performance liquid chromatography after derivatization with 2,3‐diaminonaphthalene

Contact Info

Product

Resources

About