Applied Spectroscopy最新文献

Attenuated Total Reflection Fourier Transform Infrared Spectroscopy and Chemometrics for the Discrimination of Animal Hair Fibers for the Textile Sector. 衰减全反射傅立叶变换红外光谱学和化学计量学用于鉴别纺织行业的动物毛发纤维。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2024-11-08 DOI: 10.1177/00037028241292372

Christoforos Chrimatopoulos, Maria Laura Tummino, Eleftherios Iliadis, Cinzia Tonetti, Vasilios Sakkas

{"title":"Attenuated Total Reflection Fourier Transform Infrared Spectroscopy and Chemometrics for the Discrimination of Animal Hair Fibers for the Textile Sector.","authors":"Christoforos Chrimatopoulos, Maria Laura Tummino, Eleftherios Iliadis, Cinzia Tonetti, Vasilios Sakkas","doi":"10.1177/00037028241292372","DOIUrl":"10.1177/00037028241292372","url":null,"abstract":"Analyzing the composition of animal hair fibers in textiles is crucial for ensuring the quality of yarns and fabrics made from animal hair. Among others, Fourier transform infrared (FT-IR) spectroscopy is a technique that identifies vibrations associated with chemical bonds, including those found in amino acid groups. Cashmere, mohair, yak, camel, alpaca, vicuña, llama, and sheep hair fibers were analyzed via attenuated total reflection FT-IR (ATR FT-IR) spectroscopy and scanning electron microscopy techniques aiming at the discrimination among them to identify possible commercial frauds. ATR FT-IR, being a novel approach, was coupled with chemometric tools (partial least squares discriminant analysis, PLS-DA), building classification/prediction models, which were cross-validated. PLS-DA models provided an excellent differentiation among animal hair of both camelids and eight animal species. In addition, the combination of ATR FT-IR and PLS-DA was used to discriminate the cashmere hair from different origins (Afghanistan, Australia, China, Iran, and Mongolia). The model showed very good discrimination ability (accuracy 87%), with variance expression of 94.88% and mean squared error of cross-validation of 0.1525.","PeriodicalId":8253,"journal":{"name":"Applied Spectroscopy","volume":" ","pages":"1173-1184"},"PeriodicalIF":2.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Dual-Gas Sensor Employing Wavelength-Stabilized Tunable Diode Laser Absorption Spectroscopy and H-Infinity Filtering Algorithm. 采用波长稳定可调谐二极管激光吸收光谱和h-∞滤波算法的双气体传感器。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-01-10 DOI: 10.1177/00037028241310463

Dingli Xu, Qiannan Cai, Gang Zhang, Qiang Ge, Linguang Xu

引用次数: 0

Advertising and Front Matter. 广告和封面。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-07-24 DOI: 10.1177/00037028251359679

引用次数: 0

NO-CO Monitoring Technique Using Ultraviolet Absorption Spectroscopy and Tunable Diode Laser Absorption Spectroscopy in High-Temperature and High-Pressure. 高温高压下紫外吸收光谱与可调谐二极管激光吸收光谱的NO-CO监测技术。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-03-18 DOI: 10.1177/00037028251324196

Wangzheng Zhou, Xiaowei Qin, Zhenzhen Wang, Yoshihiro Deguchi, Daotong Chong, Junjie Yan

{"title":"NO-CO Monitoring Technique Using Ultraviolet Absorption Spectroscopy and Tunable Diode Laser Absorption Spectroscopy in High-Temperature and High-Pressure.","authors":"Wangzheng Zhou, Xiaowei Qin, Zhenzhen Wang, Yoshihiro Deguchi, Daotong Chong, Junjie Yan","doi":"10.1177/00037028251324196","DOIUrl":"10.1177/00037028251324196","url":null,"abstract":"The single parameter detection of temperature (H2O) is no longer sufficient for the absorption combustion diagnosis. There is a huge demand for simultaneous computed tomography (CT) diagnosis of multi-parameters. This paper studied CO and NO, two representative combustion products based on tunable diode laser absorption spectroscopy (TDLAS) and ultraviolet absorption spectroscopy (UVAS). Different from the research on low detection limits, the absorbance needs to be corrected in high-temperature and high-pressure conditions due to the equipment performance of the CT system. A high-temperature and high-pressure chamber system was applied for the basic absorbance experiment. The corrected absorbance databases of 2325.2/2326.8 nm for CO, and 215/226 nm band for NO were established. The corrected absorbance databases were first compared with the HITRAN and ExoMol databases. The accuracy of the corrected databases was also analyzed by standard gas with 1D detection in the high-temperature and high-pressure chamber and two-dimensional (2D) reconstruction in a customed CT cell. The maximum CO mean relative error (MRE) of the 2D results is 2.75% while the maximum NO MRE is 4.99%. This study provides a basis for research on the CO and NO distribution in high-temperature and high-pressure combustion fields.","PeriodicalId":8253,"journal":{"name":"Applied Spectroscopy","volume":" ","pages":"1206-1217"},"PeriodicalIF":2.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143656106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Characterizing Variability in Non-Invasive Hydration Monitoring Using Raman Spectroscopy. 利用拉曼光谱表征无创水合监测的可变性。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2024-12-26 DOI: 10.1177/00037028241307043

Anna S Rourke-Funderburg, Laura J Elstub, Trevor Voss, Richard L Liao, Laura E Masson, Anita Mahadevan-Jansen

{"title":"Characterizing Variability in Non-Invasive Hydration Monitoring Using Raman Spectroscopy.","authors":"Anna S Rourke-Funderburg, Laura J Elstub, Trevor Voss, Richard L Liao, Laura E Masson, Anita Mahadevan-Jansen","doi":"10.1177/00037028241307043","DOIUrl":"10.1177/00037028241307043","url":null,"abstract":"Significant dehydration can increase thermoregulatory and cardiovascular strain and impair physical and cognitive performance. Despite these negative effects, there are currently no objective, non-invasive tools to monitor systemic hydration. Raman spectroscopy is an optical modality with the potential to fill this gap because it is sensitive to water, provides results quickly, and can be applied non-invasively. In this work, high wavenumber Raman spectroscopy has been developed toward detection of systemic hydration via validation with tissue-mimicking phantoms, followed by three in vivo feasibility studies to investigate the relationship between spectral features and systemic hydration. The area under the curve (AUC) of the water bands and the ratio of water bands to CH bands are Raman-derived metrics that can be used to describe systemic hydration. Here, we determined a trend in decreasing water bands AUC after exercise, although the magnitude of the change was highly variable. In investigating the sources of variability, we identified significant inter-subject variability and a failure of current clinical standards to benchmark our developed technique against. Despite the high variability, we found that multiple anatomical locations were suitable for collecting the spectral measurements. While the high degree of variability may confound the use of Raman spectroscopy for non-invasive hydration monitoring, when implementing additional study standardization, significant differences (p <.05) in spectral metrics can be identified before and after exercise. Raman spectroscopy can allow for rapid, non-invasive detection of systemic hydration, which would improve routine hydration monitoring and reduce the incidence of negative side effects associated with dehydration.","PeriodicalId":8253,"journal":{"name":"Applied Spectroscopy","volume":" ","pages":"1228-1241"},"PeriodicalIF":2.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142891707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Heavy Mineral Identification and Quantification Using Fourier Transform Infrared Spectroscopy. 傅里叶变换红外光谱重矿物鉴定与定量研究。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-03-17 DOI: 10.1177/00037028251322197

Fares Azzam, Thomas Blaise, Jocelyn Barbarand, Hélène Cassagne, Julius Nouet

{"title":"Heavy Mineral Identification and Quantification Using Fourier Transform Infrared Spectroscopy.","authors":"Fares Azzam, Thomas Blaise, Jocelyn Barbarand, Hélène Cassagne, Julius Nouet","doi":"10.1177/00037028251322197","DOIUrl":"10.1177/00037028251322197","url":null,"abstract":"We evaluated the application of Fourier transform infrared (FT-IR) microspectroscopy in the mid-IR region (1500-550 cm-1) in reflectance mode as a semi-automated tool to quantify common heavy minerals (HM) found in natural sediments and sedimentary rocks. An in-house database of IR spectra for the main HM was acquired. Then, automated HM identification using FT-IR spectroscopy was tested on synthetic mixtures with known HM proportions. HM fractionation during sampling and mounting in epoxy is evaluated by testing several sample preparations techniques. Overall, HM are properly determined using FT-IR microspectroscopy. Most of the HM are found in proportions comparable to those documented in the synthetic mixtures. Main drawbacks to this method include: (i) the mid-IR region does not give access to the absorption bands of some HM, such as fluorite, pyrite, and cassiterite, compared to other methods such as Raman microspectroscopy, (ii) the failure to discriminate titanium dioxide (TiO2) polymorphs, and (iii) large spectral variations in some mineral groups such as amphiboles. Beyond these limitations, mid-FT-IR microspectroscopy in reflectance mode can be used to accurately determine HM proportions and could be simpler, faster, and/or cheaper when compared to other methods such as optical microscopy or scanning electron microscopy.","PeriodicalId":8253,"journal":{"name":"Applied Spectroscopy","volume":" ","pages":"1185-1197"},"PeriodicalIF":2.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Analysis of the Fossilization Processes of Vicarya callosa japonica Shells Using Raman Micro-Mapping Combined with Principal Component Analysis and Partial Least Squares Regression. 结合主成分分析和偏最小二乘回归的拉曼微映射法分析胼花籽壳化石过程。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-03-13 DOI: 10.1177/00037028251322807

Yuki Tanaka, Kosuke Hashimoto, Toshiya Ichiki, Hidetoshi Sato, Yukihiro Ozaki, Motohiro Tsuboi

{"title":"Analysis of the Fossilization Processes of Vicarya callosa japonica Shells Using Raman Micro-Mapping Combined with Principal Component Analysis and Partial Least Squares Regression.","authors":"Yuki Tanaka, Kosuke Hashimoto, Toshiya Ichiki, Hidetoshi Sato, Yukihiro Ozaki, Motohiro Tsuboi","doi":"10.1177/00037028251322807","DOIUrl":"10.1177/00037028251322807","url":null,"abstract":"Micro-Raman spectroscopic analysis of a fossil sample of Vicarya callosa japonica was performed to investigate the chemical process of fossilization. The Vicarya sample, originating from the Miocene Katsuta Group, Okayama prefecture, southwestern Japan, had a conical shell body with multiple protuberances on the outer layer. The interior of the shell was filled with a carbonate sediment. Raman mapping combined with principal component analysis (PCA) and partial least squares regression (PLSR) analysis were performed on the sample. Well-preserved, in vivo aragonite was found to be distributed on the shell and near the boundary between the internal carbonate precipitates and the shell. The internal precipitates were composed of pure calcite and black carbonates. The black-colored precipitates contained pyrite, suggesting that the carbonates were derived from the same biogenic tissue as the carbonate concretions and were the starting point for their crystallization. The rapid formation of the precipitates, also similar to that of carbonate concretions, and the suppression of the demineralization effect of the shell from pore water in the sediment may have contributed to the preservation of the aragonite. The reaction of the transition from aragonite to calcite in the shell progressed to some extent and crystallization was completed before the transition to calcite was complete.","PeriodicalId":8253,"journal":{"name":"Applied Spectroscopy","volume":" ","pages":"1218-1227"},"PeriodicalIF":2.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143623334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Dip or Step-Like Features in the Infrared Reflection Spectra of Heat-Treated Polyoxymethylene. 热处理聚甲醛红外反射光谱的倾斜或阶梯特征。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-03-28 DOI: 10.1177/00037028251328049

Naoto Nagai, Yuko Amaki

引用次数: 0

Multichannel Dilution Analysis Using a Single Peristaltic Pump Tube. 用单蠕动泵管进行多通道稀释分析。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-02-05 DOI: 10.1177/00037028251315753

Robbie M Huff, Willis B Jones, Bradley T Jones

{"title":"Multichannel Dilution Analysis Using a Single Peristaltic Pump Tube.","authors":"Robbie M Huff, Willis B Jones, Bradley T Jones","doi":"10.1177/00037028251315753","DOIUrl":"10.1177/00037028251315753","url":null,"abstract":"Multi-channel dilution analysis (MCDA) is a novel, matrix-matched calibration method that automatically dilutes a standard solution using a tubing manifold to split a solution stream traveling between an autosampler and an analytical instrument. The manifold consists of separate tubing channels of various lengths, resulting in a stairstep of signal levels as different portions of the solution reach the instrument to be measured at different points in time. Multi-channel dilution analysis was initially developed on an inductively coupled plasma optical emission spectrometer (ICP-OES) equipped with a peristaltic pump with five channels, with three used to drive solution through individual tubes in the manifold and a fourth reserved for waste. The setup limited MCDA measurements from being realized on instruments that have fewer pump channels without employing an external pump. The use of a single peristaltic pump line to drive solution through the entire tubing manifold is proposed as a feasible way to overcome this hardware limitation and is applied to both ICP-OES and ICP mass spectrometry (ICP-MS). The method is validated through the analysis of certified reference materials, with recoveries for a suite of analytes ranging from 83% to 117%, with relative standard deviations on the order of 1%. The matrix matching capabilities of the method are demonstrated through the analysis of spiked matrices containing high concentrations of ethanol and calcium, and a comparison to traditional calibration techniques. In addition, the improvements in calibration statistics for ICP-MS measurements using MCDA are discussed.","PeriodicalId":8253,"journal":{"name":"Applied Spectroscopy","volume":" ","pages":"1256-1265"},"PeriodicalIF":2.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143254460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Multi-Reflectance-Spectroscopy, Part II: Optical Sensor for In-Line Monitoring of Fat and Protein in Milk-Based Products. 多反射光谱学，第二部分：乳基产品中脂肪和蛋白质在线监测的光学传感器。

IF 2.2 3区化学

Applied Spectroscopy Pub Date : 2025-08-01 Epub Date: 2025-06-04 DOI: 10.1177/00037028251338316

Sebastian Boldt, Gert Sinn, Klaus-Henrik Mittenzwey, Ouwen Zhai, Henry Mittenzwey, Dietmar Lerche, Marco Gleiß, Hermann Nirschl

{"title":"Multi-Reflectance-Spectroscopy, Part II: Optical Sensor for In-Line Monitoring of Fat and Protein in Milk-Based Products.","authors":"Sebastian Boldt, Gert Sinn, Klaus-Henrik Mittenzwey, Ouwen Zhai, Henry Mittenzwey, Dietmar Lerche, Marco Gleiß, Hermann Nirschl","doi":"10.1177/00037028251338316","DOIUrl":"10.1177/00037028251338316","url":null,"abstract":"This study presents an optical sensor system utilizing multi-reflectance spectroscopy (MRS), specifically designed for in-line applications to enable the real-time determination of fat and protein content in milk products, simultaneously. This method employs multiple light wavelengths and various illumination-detection geometries. A field study was conducted in a milk mixing plant, where measurements were obtained from milk products with varying fat and protein concentrations, with a particular focus on recombined milk samples and a brief comparison to conventional milk products. In a first step the experimental data are compared with simulation data obtained from an analytical MRS formula. The fundamental spectroscopic characteristics, particularly the dependence of reflectance values on fat concentrations, as well as the relationship between wavelength and reflectance, remained consistent. However, some experimental bias was observed in the absolute values when comparing the analytical and experimental results. Secondly, to get reflectance models multi-linear regressions (MLR) were carried out based on the experimental and analytical data as well fat and protein content obtained from traditional wet chemical methods. To estimate the model accuracy the root mean square error (RMSE) has been used yielding around 0.1 wt% for fat and protein. A validation procedure using recombined milk results in approximately 0.1 wt% for fat and around 0.2 wt% for protein. Finally, it is shown that the process sample temperature has only a small influence on the reflectance. In contrast the homogenization pressure significantly influences the reflectance and should be considered to ensure accurate monitoring.","PeriodicalId":8253,"journal":{"name":"Applied Spectroscopy","volume":" ","pages":"1242-1255"},"PeriodicalIF":2.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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