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ICP-OES as a Viable Alternative to ICP-MS for Trace Analysis: Meeting the Detection Limits Challenge ICP-OES可替代ICP-MS用于痕量分析:满足检测限的挑战
4区 化学
Spectroscopy Pub Date : 2023-10-01 DOI: 10.56530/spectroscopy.do3475y9
Sergei Leikin, Autumn Phillips
{"title":"ICP-OES as a Viable Alternative to ICP-MS for Trace Analysis: Meeting the Detection Limits Challenge","authors":"Sergei Leikin, Autumn Phillips","doi":"10.56530/spectroscopy.do3475y9","DOIUrl":"https://doi.org/10.56530/spectroscopy.do3475y9","url":null,"abstract":"This month’s column focuses on the applicability of inductively coupled plasma–optical emission spectroscopy (ICP-OES) fitted with a high efficiency nebulizer as a real-world alternative to ICP–mass spectrometry (ICP-MS) for certain applications. It is well-recognized that ICP-MS is the most widely used and recommended technique for ultra trace element analysis because it offers extremely high sensitivity. However, if the necessary sensitivity is achieved, an ICP-OES instrument can be a viable option because it is simpler to operate and less costly to maintain than an ICP-MS instrument. In this study, the sensitivity of ICP-OES was significantly enhanced by using a highly efficient yet robust sample introduction system. The increased efficiency was accomplished by employing an external impact surface positioned close to the nebulizer gas orifice at an optimized angle. The robustness by a non-concentric design was achieved by separating the gas and sample channels throughout the entire body of the nebulizer. The results of applying this approach to the ICP-OES analysis of a select group of sample matrices and meeting the required challenging detection limits are demonstrated.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134935141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Key Steps in the Workflow to Analyze Raman Spectra 关键步骤在工作流程中分析拉曼光谱
4区 化学
Spectroscopy Pub Date : 2023-10-01 DOI: 10.56530/spectroscopy.fl6984w5
Shuxia Guo, Jürgen Popp, Thomas Bocklitz
{"title":"Key Steps in the Workflow to Analyze Raman Spectra","authors":"Shuxia Guo, Jürgen Popp, Thomas Bocklitz","doi":"10.56530/spectroscopy.fl6984w5","DOIUrl":"https://doi.org/10.56530/spectroscopy.fl6984w5","url":null,"abstract":"","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134935051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Review and Prospect: Applications of Exponential Signals with Machine Learning in Nuclear Magnetic Resonance 回顾与展望:指数信号与机器学习在核磁共振中的应用
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.yx1073b8
Di Guo, Xianjing Chen, Mengli Lu, Wangfeng He, Sihui Luo, Yanqin Lin, Yuqing Huang, Lizhi Xiao, Xiaobo Qu
{"title":"Review and Prospect: Applications of Exponential Signals with Machine Learning in Nuclear Magnetic Resonance","authors":"Di Guo, Xianjing Chen, Mengli Lu, Wangfeng He, Sihui Luo, Yanqin Lin, Yuqing Huang, Lizhi Xiao, Xiaobo Qu","doi":"10.56530/spectroscopy.yx1073b8","DOIUrl":"https://doi.org/10.56530/spectroscopy.yx1073b8","url":null,"abstract":"Nuclear magnetic resonance (NMR) spectroscopy presents an important analytical tool for composition analysis, molecular structure elucidation, and dynamic study in the fields of chemistry, biomedicine, food science, energy and more. As a basic function, exponential functions can be applied to model NMR signals of free induction decay, relaxation, and diffusion. In this paper, we will review Fourier and Laplace NMR exponential signals separately, as well as the performance of state-of-the-art machine learning on NMR applications.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135255511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Guess Who’s Coming to Inspect R&D? 猜猜谁要来视察研发部门了?
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.cv2490n6
R.D. McDowall
{"title":"Guess Who’s Coming to Inspect R&D?","authors":"R.D. McDowall","doi":"10.56530/spectroscopy.cv2490n6","DOIUrl":"https://doi.org/10.56530/spectroscopy.cv2490n6","url":null,"abstract":"A new revision to the U.S. Food and Drug Administration (FDA)’s Compliance Program Guide for Pre-Approval Inspections (PAIs) has added a fourth objective: Commitment to Quality in Pharmaceutical Development. PAIs are going to be very interesting now.....","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135255639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of Heavy Metals and Methyl-Mercury in Fungi in Markets of Madrid 马德里市场真菌中重金属和甲基汞的研究
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.zf9975m6
Javier Peinador Asensio
{"title":"Study of Heavy Metals and Methyl-Mercury in Fungi in Markets of Madrid","authors":"Javier Peinador Asensio","doi":"10.56530/spectroscopy.zf9975m6","DOIUrl":"https://doi.org/10.56530/spectroscopy.zf9975m6","url":null,"abstract":"In this study, 48 different wild and cultivated mushrooms were purchased in local markets in Madrid and provided by trusted specialists from the Mycological Society of Madrid. Cadmium, mercury, and lead were determined by inductively coupled plasma–mass spectrometry (ICP-MS) in samples previously digested in a microwave oven. Methylmercury (MeHg) was determined by liquid chromatography separation (HPLC) combined with ICP-MS after microwave-assisted extraction. Regarding the cadmium and lead contents, all the samples complied with the maximum permitted limits. For mercury, a single sample exceeded the maximum value established in Regulation (EU) 2018/73 for wild mushrooms. In the case of methylmercury, the highest amount represents 13% of the total mercury in one sample. In the rest of the cases, the concentration found was negligible.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135394147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of Acute Kidney Injury Induced by Gentamicin in a Rat Model by Aluminum-Foil-Assisted ATR-FT-IR Spectroscopy 铝箔辅助ATR-FT-IR光谱检测庆大霉素致大鼠急性肾损伤模型
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.ii4190k9
Lujuan Yang, Haoran Fan, Peng Shang, Ying Sun, Wenli Tian, Gang Ma
{"title":"Detection of Acute Kidney Injury Induced by Gentamicin in a Rat Model by Aluminum-Foil-Assisted ATR-FT-IR Spectroscopy","authors":"Lujuan Yang, Haoran Fan, Peng Shang, Ying Sun, Wenli Tian, Gang Ma","doi":"10.56530/spectroscopy.ii4190k9","DOIUrl":"https://doi.org/10.56530/spectroscopy.ii4190k9","url":null,"abstract":"Fourier transform infrared (FT-IR) spectroscopy has attracted great attention in the field of disease diagnostics for many years. Yet, the clinical translation of FT-IR spectroscopy has been rather slow because of several bottlenecks. This work explores the potential of aluminum foil-assisted attenuated total reflectance-FT-IR (ATR-FT-IR) spectroscopy, which is a simple and economical FT-IR sampling technique, to detect acute kidney injury (AKI) induced by gentamicin in a rat model. It was found that partial least squares-discriminant analysis (PLS-DA) could successfully discriminate between the AKI status and the healthy status with the plasma samples of the rats. An in-depth discussion on the advantages of aluminum-foil-assisted ATR-FT-IR spectroscopy in FT-IR-based disease diagnostics is also provided.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GC-ICP-MS for Process and Quality Control in Semiconductor Manufacturing GC-ICP-MS用于半导体制造过程和质量控制
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.cm8586x8
William M. Geiger, Ed McCurdy, Mark Kelinske
{"title":"GC-ICP-MS for Process and Quality Control in Semiconductor Manufacturing","authors":"William M. Geiger, Ed McCurdy, Mark Kelinske","doi":"10.56530/spectroscopy.cm8586x8","DOIUrl":"https://doi.org/10.56530/spectroscopy.cm8586x8","url":null,"abstract":"Gas chromatography (GC) coupled to inductively coupled plasma–mass spectrometry (ICP-MS) is a powerful and flexible analytical solution that is well-established for measuring organometallic compounds such as organotin, organomercury, and organolead in environmental samples, foodstuffs, and consumer products. GC–ICP-MS is also used for industrial applications, such as monitoring catalyst poisons and environmental contaminant elements in petrochemical processing and plastics manufacturing. The semiconductor industry uses a range of high-purity specialty gases and volatile liquids as precursors in wafer substrate production, and for processes such as plasma etching and deposition of thin films by chemical vapor deposition (CVD). Semiconductor manufacturers are constantly developing new integrated circuit (IC) chips with smaller sizes, higher speeds, lower power consumptions, and greater transistor densities. This trend means that contaminants must be controlled at even lower levels in process chemicals and precursors. In this article, we show how GC–ICP-MS, particularly using triple quadrupole or tandem ICP-MS (ICP-MS/MS), enables determination of the lowest levels of contaminants in the specialty gases and volatile liquids used to make the most advanced electronic devices.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135394248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The 2023 Emerging Leader in Molecular Spectroscopy Award 获得2023年分子光谱学新兴领袖奖
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.bu5978k6
Jerome Workman
{"title":"The 2023 Emerging Leader in Molecular Spectroscopy Award","authors":"Jerome Workman","doi":"10.56530/spectroscopy.bu5978k6","DOIUrl":"https://doi.org/10.56530/spectroscopy.bu5978k6","url":null,"abstract":"This year’s Emerging Leader in Molecular Spectroscopy Award recipient is Dmitry Kurouski, an assistant professor of chemistry at the Texas A&M University in College Station, Texas. From his early research days as a graduate student at State University of New York in Albany, Kurouski’s research has emphasized the development and application of innovative Raman spectroscopy methods for noninvasive, nondestructive analyses of biological materials.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Halogenated Organic Compounds 卤化有机化合物
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.vo3774k1
Brian C. Smith
{"title":"Halogenated Organic Compounds","authors":"Brian C. Smith","doi":"10.56530/spectroscopy.vo3774k1","DOIUrl":"https://doi.org/10.56530/spectroscopy.vo3774k1","url":null,"abstract":"Almost all of the compounds whose spectra we have discussed so far in this column series have contained carbon, hydrogen, oxygen, and nitrogen only. However, there are a number of important compounds that contain other elements that are still considered organic, such as halogenated organics. In this column, we will discuss the spectra of halogenated compounds generally, then specifically discuss the spectra of some common halogenated polymers.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Using ICP-OES to Improve Lithium-Ion Battery Performance and Reduce Waste 利用ICP-OES提高锂离子电池性能并减少浪费
4区 化学
Spectroscopy Pub Date : 2023-09-01 DOI: 10.56530/spectroscopy.vz5170l2
Ken Neubauer
{"title":"Using ICP-OES to Improve Lithium-Ion Battery Performance and Reduce Waste","authors":"Ken Neubauer","doi":"10.56530/spectroscopy.vz5170l2","DOIUrl":"https://doi.org/10.56530/spectroscopy.vz5170l2","url":null,"abstract":"As the demand grows for lithium-ion (Li-ion) batteries, their performance requirements and environmental impact increase. Battery performance strongly depends on the composition of the cathode materials, requiring precise elemental ratios. Meanwhile, disposing spent batteries can have a negative environmental impact, which can be greatly reduced through recycling. Inductively coupled plasma–optical emission spectroscopy (ICP-OES) provides solutions in both of these areas. By using high-precision ICP-OES, precise measurements can be made to accurately determine compositions of a variety of different cathode materials. In battery recycling, ICP-OES meets the requirements of being a multielement technique with a wide dynamic range and the ability to handle complex matrices. Therefore, it can measure both high-concentration and impurity elements resulting from the incineration of spent batteries, providing recycling facilities information about the elements present and their levels so that recoveries can be optimized.","PeriodicalId":21957,"journal":{"name":"Spectroscopy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135394254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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