X-Ray Spectrometry最新文献_第3页

Calendar Article 日历文章

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2024-02-06 DOI: 10.1002/xrs.3420

Kenji Sakurai

引用次数: 0

News Article 新闻报道

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2024-02-06 DOI: 10.1002/xrs.3419

Kenji Sakurai

引用次数: 0

Determination of trace elements in titanium oxides by wavelength dispersive x-ray fluorescence spectrometry (WD-XRF) 利用波长色散 X 射线荧光光谱法（WD-XRF）测定钛氧化物中的痕量元素

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2024-02-04 DOI: 10.1002/xrs.3418

M. F. Gazulla, M. Orduña, M. Rodrigo

{"title":"Determination of trace elements in titanium oxides by wavelength dispersive x-ray fluorescence spectrometry (WD-XRF)","authors":"M. F. Gazulla, M. Orduña, M. Rodrigo","doi":"10.1002/xrs.3418","DOIUrl":"https://doi.org/10.1002/xrs.3418","url":null,"abstract":"TiO2 is used in a great variety of industries (foods, medicines, cosmetics, etc.). In food industry, although the use of TiO2 as additive was banned by EU in 2022, it is still authorized in medicinal products, and is allowed as food ingredient in US and Canada. Focusing on cosmetics, regulations state some forbidden elements (As, Cd, Ni, Hg, Sb, and Pb), and others allowed with a specific limit (Co, Cr, and Se). Most researches about TiO2 characterization are focused on the purity determination and no studies analyzing trace metals in this material have been found. Due to the potential impact of those trace elements on health and safety, a robust method for determining them in TiO2 is required. A methodology for the determination of As, Cd, Co, Cr, Hg, Ni, Pb, Sb, and Se at trace level in TiO2 by WD-XRF has been developed. Sample was prepared as pressed pellets to achieve low limits required by regulations, and the best conditions were established using n-butyl methacrylate as binder and plastic spatula to avoid Cr contamination coming from the stainless-steel one. An in-depth inquiry conducted to get calibration and validation standards revealed a lack of reference materials; therefore, additions of pure oxides of each element were made to high-purity TiO2. Validation was performed by two means: analyzing synthetic standards prepared as stated and analyzing two commercial TiO2 by an independent method (ICP-OES). The developed methodology was suitable to be used as control method to assess whether the materials meet the regulations, since time required to undertake the analysis is much less than other methods.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":"49 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139766188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Degradation mechanisms of Indian banks promissory notes written in iron-gall inks and its conservation 印度银行用铁球墨水书写的期票的降解机制及其保护

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2024-01-10 DOI: 10.1002/xrs.3417

Sarvesh Singh, Manager Rajdeo Singh

{"title":"Degradation mechanisms of Indian banks promissory notes written in iron-gall inks and its conservation","authors":"Sarvesh Singh, Manager Rajdeo Singh","doi":"10.1002/xrs.3417","DOIUrl":"https://doi.org/10.1002/xrs.3417","url":null,"abstract":"The objective of this study is to investigate the deterioration of 18th-century Indian Bank's Promissory Notes written using iron-gall ink. The research employs non-destructive techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy to analyze the elemental composition and structural characteristics of both the iron-gall ink and the paper support. The analytical findings indicate that the acid hydrolysis of the iron-gall ink complex has led to corrosion and weakening of the document. The reactivity of Fe3+ ions, indirectly assessed through XRD analysis by measuring the crystalline index (Crl) of the paper, indicates a loss of strength in the cellulose fibers. The combination of FTIR and XRD data also reveals the utilization of gypsum as a filler in the paper, likely intended to enhance its gloss and opacity. SEM photomicrographs further illustrate the presence of iron crystals on the paper surface, a result of the non-uniform distribution of the ink and oxidation of ferrous ions also supported by surface mapping of iron. The paper's composition is identified as cellulose I, a common variety found in nature. These findings collectively provide insights into the degradation processes affecting both the iron-gall ink and the paper support. The innovative calcium phytate treatment was applied for document conservation.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":"58 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139414723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seeking for non-friendly chemical elements in tabletop sugar and zero to low-calorie sweetener sachets 寻求在桌上糖和零卡路里至低卡路里甜味剂小包中发现非友好化学元素

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2024-01-09 DOI: 10.1002/xrs.3416

Hussein Abdul Karim Moussa, Diego Osmar Galeano Espinola, Sandy González Hernández, Marcelo G. Hönnicke

引用次数: 0

Monitoring of toxic metals and metalloids in the urine of non-professional sportsmen using total reflection x-ray fluorescence 利用全反射 X 射线荧光法监测非专业运动员尿液中的有毒金属和类金属

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2023-12-26 DOI: 10.1002/xrs.3415

Jasna Jablan, Maja Ortner Hadžiabdić, Ana-Marija Domijan, Suzana Inić, Hagen Stosnach

{"title":"Monitoring of toxic metals and metalloids in the urine of non-professional sportsmen using total reflection x-ray fluorescence","authors":"Jasna Jablan, Maja Ortner Hadžiabdić, Ana-Marija Domijan, Suzana Inić, Hagen Stosnach","doi":"10.1002/xrs.3415","DOIUrl":"https://doi.org/10.1002/xrs.3415","url":null,"abstract":"Exposure to toxic metals and metalloids is a significant public health concern and can seriously affect human health. The aim of this study was to establish the presence of toxic metals and metalloids in the urine of non-professional sportsmen who participated in a mountain ultramarathon using a benchtop total reflection x-ray fluorescence (TXRF) system. TXRF allows for easy and rapid sample preparation and is therefore a potential candidate for simple and cost-effective analysis. In this work, the TXRF-Mo system was used for multielement analysis of the urine samples of 21 non-professional athletes who ran a 53 km mountain ultra-marathon. Urine samples were collected at four time points, at the beginning of the race (pre-race samples), immediately, and 12 and 24 h post-race. Al, As, Ba, Ni, Pb, Rb, Sr, V, and Tl were detected in the collected urine samples. The accuracy and precision of the proposed methods were verified by the analysis of reference materials (Seronorm™ Trace Elements Urine Level 2). The TXRF results were in agreement with the reference values and no significant differences were observed at the 95% confidence level. The detection limits for the elements of interest were also reasonable considering their concentration ranges in real samples. Changes were observed over time with increasing average urinary metals and metalloids levels, but only two significant results, were an increase in As and Rb. The results indicate a high degree of inter-subject variability. The results obtained show that the content of toxic metals and metalloids increases in the urine samples collected after the race, which could confirm the statement that physical activity can increase the excretion of toxic metals and metalloids from the body. The simplicity of the TXRF method as well as its fast performance make it suitable for routine analysis.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":"80 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139051606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Calendar Article 日历文章

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2023-12-11 DOI: 10.1002/xrs.3414

Kenji Sakurai

引用次数: 0

News Article 新闻报道

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2023-12-11 DOI: 10.1002/xrs.3413

Kenji Sakurai

{"title":"News Article","authors":"Kenji Sakurai","doi":"10.1002/xrs.3413","DOIUrl":"https://doi.org/10.1002/xrs.3413","url":null,"abstract":"<h2> Denver X-Ray Conference Awards (August 9, 2023)</h2>\u0000The following awards were presented during the 72nd Annual Denver X-Ray Conference, held August 7–11 at The Westin Chicago Lombard, Lombard, Illinois, USA. The Barrett Award, given biennially to recognize the outstanding contributions to the field of powder diffraction, was presented to Dr. Ashfia Huq (Sandia National Laboratories, USA) for her commitment to and leadership in the advancement of spallation neutron powder diffraction, and for her service to the neutron powder diffraction community. The Jenkins Award, given biennially to recognize scientists who exhibit lifetime achievement in the advancement of the use of X-rays in materials analysis, was presented to Dr. Tim Elam (University of Washington, USA) for his contributions to X-ray fluorescence spectrometry in the development of instrumentation and methods of X-ray analyses in challenging environments, including the PIXL micro-XRF spectrometer on the Mars rover Perseverance. The award also recognized his many contributions to educating and teaching others in the field of X-ray spectroscopy. The Hanawalt Award, recognizing distinguished, recent work in the field of powder diffraction, was presented to Dr. Karena Chapman (Stony Brook University, USA) for her contributions in developing X-ray diffraction capabilities in the study of challenging materials problems in sustainable energy and environmental remediation. For more information, visit the Web page, http://www.dxcicdd.com/","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":"40 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138572623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new compact micro-XRF spectrometer with polychromatic x-ray sample excitation 具有多色x射线样品激发的新型紧凑型微型xrf光谱仪

IF 1.2 4区物理与天体物理

X-Ray Spectrometry Pub Date : 2023-12-03 DOI: 10.1002/xrs.3412

Peter Wobrauschek, Dieter Ingerle, Josef Prost, Sangita Dhara, Nand Lal Mishra, Michael Iro, Christina Streli

引用次数: 0

Nanoscale analysis of magnetic chains consisting of cobalt mesospheres by full‐field transmission x‐ray tomography 由钴介球组成的磁链的纳米级分析

4区物理与天体物理

X-Ray Spectrometry Pub Date : 2023-10-30 DOI: 10.1002/xrs.3411

Jin Zhang, Chenpeng Zhou, Wanxia Huang, Shanfeng Wang, Yan Wang

引用次数: 0