scholarly journals Trace Metal Element Analysis in Some Seafood in the Coastal Zone of the Red River (Ba Lat Estuary, Vietnam) by Green Sample Preparation and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Nhu Da Le ◽  
Thi Thu Ha Hoang ◽  
Vu Phong Phung ◽  
Thi Lien Nguyen ◽  
Thi Thuy Duong ◽  
...  
Keyword(s):  
Trace Metal ◽  
Coastal Zone ◽  
Inductively Coupled Plasma ◽  
Red River ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Trace Metal Elements ◽  
Plasma Mass Spectrometry ◽  
Green Sample

Fisheries and aquaculture production in the coastal zone of Vietnam contribute significantly to the national economy. However, seafood quality and safety, especially in terms of metal contents, are of increasing concern, for both domestic and international markets. This paper presents the results of an investigation in some trace metal elements (iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), arsenic (As), cadmium (Cd), and mercury (Hg)) concentrations in some fishes, crustaceans, and molluscs in the coastal zone of the Red River (in the Ba Lat estuary in Thai Binh and Nam Dinh provinces) during four sampling campaigns in 2020. All samples were treated by a green sample preparation using microwave digestion and then analyzed by inductively coupled plasma-mass spectrometry (ICP-MS). The results showed that the trace metal element concentrations in fish, crustacean, and mollusc samples decreased in the following order: Fe > Zn > Mn > Cu > As > Cd ∼ Hg. In more details, the ranges of trace metal elements in seafood samples were 13.13–202.73; 7.63–82.71; 0.48–22.73; 0.72–15.58; 0.18–5.12; 0.001–1.114; and 0.001–0.923 mg·kg−1 for Fe, Zn, Mn, Cu, As, Cd, and Hg, respectively. The research results contribute to the dataset of the seafood (both fishery and aquacultural seafood) quality in the Red River coastal zone. Although the mean values of different trace metal elements observed in this study were lower than the allowed values of Vietnam’s or European’s threshold for food safety, some high concentrations were detected. The survey results suggest the need to expand the monitoring scope (frequency of monitoring, number of samples, and observed variables) for obtaining a fully comprehensive assessment of seafood quality in this region. Our results also indicate that it is necessary to manage water quality in coastal areas, especially where aquaculture activities are carried out.

scholarly journals One-factor-at-a-time method combined with ICP-MS for determining 11 elements in soy sauce and their migration from the containing glass bottles

2021 ◽  
Vol 41 (1) ◽  
pp. 10-20
Author(s):  
Xun Gao ◽  
Kexin Chen ◽  
Yue Zhang ◽  
Miaomiao Chi
Keyword(s):  
Risk Assessment ◽  
Inductively Coupled Plasma ◽  
Microwave Digestion ◽  
Soy Sauce ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Migration Study ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Glass Bottles

Abstract This study was designed to determine the 11 metal elements (Al, Cr, Mn, Fe, As, Ni, Cu, Zn, Cd, Sb, and Pb) in soy sauce and their migration from the containing glass bottles. Inductively coupled plasma mass spectrometry (ICP-MS) was applied for the determination of the elements and one-factor-at-a-time method was employed for optimizing the ICP-MS parameters in migration experiment and microwave digestion experiment. The developed method was successfully applied to determine the content of 11 elements. The results showed that the experiment had excellent correlation and sensitivity. The accuracy of the elements in the migration study and test of soy sauce itself ranging from 84.25% to 118.75% was satisfied, and the precision of the method was validated and the RSD was no more than 15.5%. The concentration of all the detected metal elements migrated from the glass bottles were between 0.3450 and 2.398 ng·mL−1, and the risk assessment indicated that the metal elements in soy sauce had no risk to the public health. The proposed methodology in this study was successfully applied for the quality control for metal elements in soy sauce and the containing glass bottles for the first time, and a research method suitable for soy sauce consumption process control and risk assessment has been established.

scholarly journals Heavy metal elements in toiletries analyzed by INAA, ICP-MS and SEM-EDX

2011 ◽  
Vol 1 (1) ◽  
pp. 393-398
Author(s):  
E. Furuta ◽  
H. Minowa ◽  
K. Tagami ◽  
Y. Okada ◽  
H. Nakahara
Keyword(s):  
Heavy Metal ◽  
Detection Limit ◽  
Inductively Coupled Plasma ◽  
Particle Sizes ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements ◽  
High Concentrations

AbstractRecently, many toiletries claiming inclusion of platinum (Pt), silver (Ag) and gold (Au) as additives are sold in ordinary cosmetics shops. However, their concentrations are not clearly indicated. In the present work, these toiletries were analyzed for heavy metal elements by instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS), and the particle sizes were observed by scanning electron microscope (SEM) and the constitutions of the small particles were analyzed by energy dispersive X-ray spectroscopy (EDX). The concentrations of Pt in the toiletries observed were from 1 to 80 ppm. The lower detection limit of Pt by INAA was about 1 ppm because of the presence of sodium in high concentrations for those samples. Consequently, some toiletries which should have had Pt according to the manufactures were found not to contain Pt probably because it was less than the detection limit. On the other hand, there were a few toiletries that were found to contain Ag although the addition of Ag was not mentioned by the manufactures. It is considered that these non-indicated Ag were included as impurities of the added Au. The concentrations of the non-indicated Ag were even higher than those of the indicated Ag. A very small amount of Sr, which was nominated in the negative list of Japan, was also detected in 2 out of 5 kinds of toiletries analyzed by ICP-MS.

scholarly journals Evaluation of trace metal content in soils subjected to inputs of solid urban wastes

2021 ◽  
Vol 14 (9) ◽  
pp. 3361-3371
Author(s):  
Lambiénou Ye ◽  
Désiré Jean Pascal Lompo ◽  
Aboubakar Sako ◽  
Hassan Bismarck Nacro
Keyword(s):  
Trace Metal ◽  
Inductively Coupled Plasma ◽  
Agricultural Soils ◽  
Pollution Index ◽  
Soil Horizons ◽  
Inductively Coupled ◽  
Spectrométrie De Masse ◽  
Icp Ms ◽  
Bobo Dioulasso ◽  
Plasma Mass Spectrometry

Large amounts of solid urban waste (SUW), sometimes containing trace metal (TM), are used to fertilize agricultural soils. The aim of this study was to assess concentrations of TM in peri-urban agricultural soils exposed to SUW inputs around Bobo-Dioulasso. Composite samples of fourteen soil profiles (0-20 cm, 20-40 cm and 40-60 cm) were collected in the classified Dindéréso forest in the outskirts of Bobo-Dioulasso. Inductively coupled plasma mass spectrometry (ICP/MS) was used to analyze TM concentrations in the samples. Concentrations of Cd, Cr, Cu, Ni, Pb and Zn varied broadly according to the sampling sites and soil horizons. The maximum concentrations of the analyzed elements in all sites were lower than the limit concentrations. Regardless soil horizons, the pollution index were less than 1, suggesting that the sampled soils were not subject to multiple contaminations of TM. D’importantes quantités de déchets urbains solides (DUS), renfermant parfois des éléments traces métalliques (ETM), sont utilisées pour fertiliser les sols agricoles. Le but de cette étude est d’évaluer les concentrations en ETM des sols péri-urbains de la ville de Bobo-Dioulasso soumis à l’épandage des DUS. Des échantillons composites de sols ont été prélevés, suivant les horizons 0-20 cm, 20-40 cm et 40-60 cm, sur quatorze sites dans la forêt classée de Dindérésso située à la périphérie de la ville de Bobo-Dioulasso. L’analyse des échantillons de sol a été effectuée par spectrométrie de masse avec plasma à couplage inductif (ICP/MS). Les résultats montrent que les concentrations en Cd, Cr, Cu, Ni, Pb et Zn des sols sont très variées. Elles varient en fonction de l’ETM, du site et de l’horizon du sol. Les concentrations des différents ETM dans les sols sont inférieures aux valeurs limites sur tous les sites. L’index de pollution de chaque site est inférieur à 1, quel que soit l’horizon de sol, suggérant ainsi que les sites de la zone ne font pas l’objet d’une contamination multiple de leurs sols par les ETM.

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