Article
Engineering, Environmental
Nenad M. Zaric, Simone Braeuer, Walter Goessler
Summary: This study determined arsenic concentrations and speciation analysis in honeybees for the first time, finding that the highest concentrations were near coal fired thermal power plants and urban regions. The most effective extraction method for total arsenic from honeybee samples was hot water at 90 degrees C. Inorganic arsenic accounted for the majority of arsenic species in honeybees, except in an industrial city where a significant portion was present as DMA.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Spectroscopy
Artem S. Maltsev, Alexei Ivanov, Galina Pashkova, Alexander E. Marfin, Yuri A. Bishaev
Summary: The study proposes a new method using TXRF for elemental analysis of single apatite microcrystals, which is faster, cheaper, and easier in quantification compared to LA-ICP-MS. By directly preparing the apatite microcrystal on a quartz carrier using nitric acid digestion and using the stoichiometric value of phosphorus as an internal standard, major, minor, and trace elements can be obtained simultaneously. Raman spectroscopy is applied for information on mineral phases and their distribution, and the proposed TXRF method is validated by analyzing reference materials and comparing results with bulk apatite TXRF and LA-ICP-MS methods.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Chemistry, Applied
Julieta R. Camurati, Agustin Londonio, Patricia Smichowski, Vanesa N. Salomone
Summary: The study utilized an on-line HPLC-UV-thermo-oxidation-HGAFS system to analyze arsenic speciation in dried seaweeds, showing that arsenosugars are the most abundant compounds in the investigated seaweeds. The method provided an accurate analysis approach for quantifying arsenic compounds.
Article
Spectroscopy
A. S. Manjunatha, A. S. Bennal, N. M. Badiger, H. Stosnach, M. Y. Kariduraganavar
Summary: This study evaluates the analytical parameters of the Total reflection X-ray Fluorescence technique and finds that the quartz sample carrier demonstrates excellent resolution, sensitivity, and accuracy, making it suitable for multi-trace elemental analysis.
SPECTROSCOPY LETTERS
(2023)
Article
Spectroscopy
M. Ghosh, S. Biswas, K. K. Swain
Summary: The air particulate matter generated during welding operations poses a major health risk to welders as they can cause respiratory diseases. This study aimed to analyze the elemental composition of the air particulate matter at a welding site using energy dispersive X-ray fluorescence (EDXRF) and total reflection X-ray fluorescence (TXRF). The results showed that the major contributors to the particulate matter were aluminum, silicon, calcium, and iron. The composition of the particulate matter was influenced by the welding material and adjacent construction activities. The study demonstrated the fast and non-destructive analysis capability of EDXRF and TXRF for air particulate samples.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Environmental Sciences
Yaqi Fu, Huili Du, Pengfei Wang, Naiyi Yin, Xiaolin Cai, Ziqi Geng, Yunpeng Li, Yanshan Cui
Summary: Seaweed is a valuable food source in Asia due to its high nutritional value; however, it may contain high levels of arsenic, which can pose health risks. This study examined the influence of co-digestion with various foods on arsenic bioaccessibility and transformation in seaweed. The results showed that co-digestion with certain vegetables increased arsenic bioaccessibility, while others decreased bioaccessible inorganic arsenic. Additionally, some food matrices were found to reduce As(V) to As(III) during digestion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Tirumalesh Keesari, Sabarathinam Chidambaram, S. Pethaperumal, Pradeep Kamaraj, Diana Anoubam Sharma, Uday Kumar Sinha
Summary: The study found that arsenic concentration in sediments increases with depth, with the highest content found in the Cretaceous formation. The correlation between organic matter and arsenic suggests a microbial mediated reduction process that may pose future risks to water quality. The elemental profiles indicate inner shelf and marginal marine conditions for the Cretaceous and Tertiary formations, respectively.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Okviyoandra Akhyar, Asami Suzuki Mashio, Yusuke Kato, Syuhei Hayashi, Kuo Hong Wong, Chika Kosugi, Hiroshi Hasegawa
Summary: The present study investigated the monthly variation of element accumulation in seaweeds, finding that element accumulation was related to specific seaweed species rather than seawater concentration. Different seaweed species have different accumulation capacities for specific elements, and the accumulation patterns of specific elements also affect the coupled patterns between related elements.
ENVIRONMENTAL POLLUTION
(2023)
Article
Biochemistry & Molecular Biology
Rajat Hegde, Smita Hegde, Sujayendra Kulkarni, Suyamindra S. Kulkarni, Aditya Pandurangi, Mahadevappa Y. Kariduraganavar, Kusal K. Das, Pramod B. Gai
Summary: This study analyzed the plasma trace element concentrations in autistic children using the total reflection X-ray fluorescence technique. The results showed higher concentrations of copper, chromium, bromine, and arsenic, and lower concentrations of potassium, iron, zinc, selenium, rubidium, and molybdenum in the plasma of autistic children compared to healthy controls.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2023)
Article
Computer Science, Interdisciplinary Applications
Hyo-Jin Kim, Dong-Hwa Lee, Kyungho Yoon, Phill-Seung Lee
Summary: This study presents a multi-director continuum beam finite element for efficient analysis of multi-layer strand cables, which can handle complex geometries and material non-linearities with reduced degrees of freedom. The predictive ability of the proposed beam model is demonstrated through numerical examples.
COMPUTERS & STRUCTURES
(2021)
Article
Chemistry, Analytical
Cassiano L. S. Costa, Claudia T. Prais, Clesia C. Nascentes
Summary: A simple and cost-effective method for determining multiple elements in glass samples using suspension sampling and total reflection X-ray fluorescence was developed. The method showed good accuracy and precision, with no significant differences compared to ICP-MS. Additionally, the method was able to discriminate different types of glass effectively.
Article
Engineering, Chemical
Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: This study aimed to analyze the multi-element composition of homemade rice waters and commercial rice-based cosmetics for skin/hair. The results showed that soaking unwashed rice grains in cold water was the best option in order to preserve high levels of essential elements and reduce arsenic content, making the rice water safe for consumption. However, drinking boiled or hot water soaked with rice grains may carry the risk of consuming excessive amounts of arsenic. The homemade products were compared with commercial cosmetics, and satisfactory results were obtained.
Article
Fisheries
Yun Hee Kang, Sangil Kim, Sun Kyeong Choi, Hyuk Je Lee, Ik Kyo Chung, Sang Rul Park
Summary: The study investigated the growth and bioremediation potential of five local seaweed species in an integrated fish-seaweed culture system. The results showed that all species efficiently removed nitrogen and phosphorus from fish tank effluents, with different uptake rates and efficiencies. A seaweed polyculture with species having varying nitrogen source-specific biofiltration activities could enhance nutrient removal from effluents.
REVIEWS IN AQUACULTURE
(2021)
Article
Fisheries
Alexandra Langford, Jing Zhang, Scott Waldron, Boedi Julianto, Irsyadi Siradjuddin, Iain Neish, Nunung Nuryartono
Summary: Indonesia is the largest producer of carrageenan seaweeds and its seaweed farming industry is crucial for the livelihoods of coastal households. However, the industry faces volatility in price and production cycles. This paper provides a comprehensive analysis of the prices over a 10-year period and reveals the key drivers of price trends, seasonality, volatility, and transmission. The findings highlight the importance of international demand, consistent intra-year price patterns, insignificance of product attributes in price differentials, and the role of central aggregation and transport hubs in determining price levels.
Review
Public, Environmental & Occupational Health
Kyi Mar Wai, Thinzar Swe, Maw Thoe Myar, Cindy Rahman Aisyah, Thae Su Su Hninn
Summary: This manuscript summarizes and discusses the alteration of telomere length following arsenic exposure and the possible dose-response effect of arsenic on telomere length. The findings suggest that different age groups may respond differently to arsenic exposure, and the dose-response effect of arsenic could be a critical factor in its effect on telomere length. Moreover, speciation analysis of arsenic could be more informative in identifying the effect of arsenic on telomere length.
FRONTIERS IN PUBLIC HEALTH
(2023)
Article
Spectroscopy
Piyali Deb Barman, Ashok Kumar Maurya, Subhendu Ghosh, Ankit Roy, Mukul Madaan
Summary: In X-ray spectroscopic studies, K beta 1,3 lines have been used to examine the chemical states of 3d transition metals, but are not suitable for characterizing iron oxides. Instead, FeL-lines, which involve the valence shell 3d electrons, were inspected and found to provide information on the chemical states of iron. The study established a linear relationship between the chemical shift of FeL beta 1 line and spin multiplicity, allowing for the speciation of iron.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2024)
