ACS Measurement Science Au最新文献_第6页

Ready-To-Use Microwave Sensor Modified by Antibody-AuNPs Nanoconjugate for Highly Sensitive and Selective Detection of the SARS-CoV-2 Virus 抗体- aunps纳米偶联修饰的即用型微波传感器，用于高灵敏度和选择性检测SARS-CoV-2病毒

IF 4.6

ACS Measurement Science Au Pub Date : 2024-10-09 DOI: 10.1021/acsmeasuresciau.4c0003210.1021/acsmeasuresciau.4c00032

Jin Wang, Weijia Cui, Carolyn L. Ren and Emmanuel A. Ho*,

{"title":"Ready-To-Use Microwave Sensor Modified by Antibody-AuNPs Nanoconjugate for Highly Sensitive and Selective Detection of the SARS-CoV-2 Virus","authors":"Jin Wang, Weijia Cui, Carolyn L. Ren and Emmanuel A. Ho*, ","doi":"10.1021/acsmeasuresciau.4c0003210.1021/acsmeasuresciau.4c00032","DOIUrl":"https://doi.org/10.1021/acsmeasuresciau.4c00032https://doi.org/10.1021/acsmeasuresciau.4c00032","url":null,"abstract":"The COVID-19 outbreak has led to notable developments in point-of-care (POC) diagnostic devices, as they can be valuable resources in identifying and managing the spread of the pandemic. Currently, the majority of techniques demand advanced laboratory equipment and professionals to execute precise, efficient, accurate, and sensitive testing. In this work, we report a new method to significantly enhance the sensitivity of microwave sensing of the SARS-CoV-2 virus by functionalizing the sensor surface using anti-SARS-CoV-2 spike antibody-gold nanoparticle (AuNPs) conjugates. AuNPs were surface-functionalized with the antispike antibody by EDC/NHS chemistry via PEG as a linker to form the conjugate (Ab-PEG-AuNPs). The Ab-PEG-AuNPs nanoconjugate was then coated onto the sensor through APTES and used for selectively capturing the spike protein on the SARS-CoV-2 virus. The sensing performance of the modified sensor was demonstrated via both experimental measurements and numerical simulations. Our sensor exhibited high sensitivity, achieving a limit of detection of 1,000 copies/mL of the SARS-CoV-2 virus within a 60 min time frame while requiring a minimal sample volume of 100 μL. The sensor exhibits outstanding specificity in distinguishing SARS-CoV-2 from other viruses, including influenza A and B, SARS-CoV-1, and MERS-CoV. Overall, this sensor provides a sensitive and label-free alternative for COVID-19 POC diagnosis.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"651–658 651–658"},"PeriodicalIF":4.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsmeasuresciau.4c00032","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ready-To-Use Microwave Sensor Modified by Antibody-AuNPs Nanoconjugate for Highly Sensitive and Selective Detection of the SARS-CoV-2 Virus. 抗体- aunps纳米偶联修饰的即用型微波传感器，用于高灵敏度和选择性检测SARS-CoV-2病毒。

IF 4.6

ACS Measurement Science Au Pub Date : 2024-10-09 eCollection Date: 2024-12-18 DOI: 10.1021/acsmeasuresciau.4c00032

Jin Wang, Weijia Cui, Carolyn L Ren, Emmanuel A Ho

{"title":"Ready-To-Use Microwave Sensor Modified by Antibody-AuNPs Nanoconjugate for Highly Sensitive and Selective Detection of the SARS-CoV-2 Virus.","authors":"Jin Wang, Weijia Cui, Carolyn L Ren, Emmanuel A Ho","doi":"10.1021/acsmeasuresciau.4c00032","DOIUrl":"10.1021/acsmeasuresciau.4c00032","url":null,"abstract":"The COVID-19 outbreak has led to notable developments in point-of-care (POC) diagnostic devices, as they can be valuable resources in identifying and managing the spread of the pandemic. Currently, the majority of techniques demand advanced laboratory equipment and professionals to execute precise, efficient, accurate, and sensitive testing. In this work, we report a new method to significantly enhance the sensitivity of microwave sensing of the SARS-CoV-2 virus by functionalizing the sensor surface using anti-SARS-CoV-2 spike antibody-gold nanoparticle (AuNPs) conjugates. AuNPs were surface-functionalized with the antispike antibody by EDC/NHS chemistry via PEG as a linker to form the conjugate (Ab-PEG-AuNPs). The Ab-PEG-AuNPs nanoconjugate was then coated onto the sensor through APTES and used for selectively capturing the spike protein on the SARS-CoV-2 virus. The sensing performance of the modified sensor was demonstrated via both experimental measurements and numerical simulations. Our sensor exhibited high sensitivity, achieving a limit of detection of 1,000 copies/mL of the SARS-CoV-2 virus within a 60 min time frame while requiring a minimal sample volume of 100 μL. The sensor exhibits outstanding specificity in distinguishing SARS-CoV-2 from other viruses, including influenza A and B, SARS-CoV-1, and MERS-CoV. Overall, this sensor provides a sensitive and label-free alternative for COVID-19 POC diagnosis.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"651-658"},"PeriodicalIF":4.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11659989/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Electrochemiluminescence Detection of Dopamine Using Antifouling PEDOT-Modified SPEs for Complex Biological Samples. 利用防污pedot修饰spe增强电化学发光检测复杂生物样品中的多巴胺。

IF 4.6

ACS Measurement Science Au Pub Date : 2024-10-04 eCollection Date: 2024-12-18 DOI: 10.1021/acsmeasuresciau.4c00053

Tzu-Yu Kao, Chia-Hung Kuo, Yu-Wei Wu, Shyh-Chyang Luo

{"title":"Enhanced Electrochemiluminescence Detection of Dopamine Using Antifouling PEDOT-Modified SPEs for Complex Biological Samples.","authors":"Tzu-Yu Kao, Chia-Hung Kuo, Yu-Wei Wu, Shyh-Chyang Luo","doi":"10.1021/acsmeasuresciau.4c00053","DOIUrl":"10.1021/acsmeasuresciau.4c00053","url":null,"abstract":"Detecting medically important biomarkers in complex biological samples without prior treatment or extraction poses a major challenge in biomedical analysis. Electrochemical methods, specifically electrochemiluminescence (ECL), show potential due to their high sensitivity, minimal background noise, and straightforward operation. This study investigates the ECL performance of screen-printed electrodes (SPEs) modified with the conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives for dopamine (DA) detection. PEDOT modification significantly enhances ECL intensity, improves sensitivity, and expands the linear range for DA detection. Functionalizing PEDOT with ethylene glycol (EG) further enhances stability, specificity, and resistance to interferences for DA detection. These modified SPEs demonstrate the linear range of 1-200 μM and a detection limit as low as 0.887 nM (S/N = 3), surpassing many previous studies using SPEs. Moreover, the PEDOT-EG4-OMe-modified SPEs can reliably detect DA in solutions with high protein concentrations or artificial cerebrospinal fluid. These results suggest that the PEDOT derivative-modified SPE can serve as reusable and sensitive DA sensors in complex biological environments, highlighting the potential of the ECL system for a range of challenging applications.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"712-720"},"PeriodicalIF":4.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11659998/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simplifying Wheat Quality Assessment: Using Near-Infrared Spectroscopy and Analysis of Variance Simultaneous Component Analysis to Study Regional and Annual Effects 简化小麦品质评价：利用近红外光谱和方差分析同时成分分析研究区域和年度效应

IF 4.6

ACS Measurement Science Au Pub Date : 2024-10-04 DOI: 10.1021/acsmeasuresciau.4c0004410.1021/acsmeasuresciau.4c00044

Stephan Freitag*, Maximilian Anlanger, Maximilian Lippl, Klemens Mechtler, Elisabeth Reiter, Heinrich Grausgruber and Rudolf Krska,

{"title":"Simplifying Wheat Quality Assessment: Using Near-Infrared Spectroscopy and Analysis of Variance Simultaneous Component Analysis to Study Regional and Annual Effects","authors":"Stephan Freitag*, Maximilian Anlanger, Maximilian Lippl, Klemens Mechtler, Elisabeth Reiter, Heinrich Grausgruber and Rudolf Krska, ","doi":"10.1021/acsmeasuresciau.4c0004410.1021/acsmeasuresciau.4c00044","DOIUrl":"https://doi.org/10.1021/acsmeasuresciau.4c00044https://doi.org/10.1021/acsmeasuresciau.4c00044","url":null,"abstract":"Assessing the quality of wheat, one of humanity’s most important crops, in a straightforward manner, is essential. In this study, analysis of variance (ANOVA) simultaneous component analysis (ASCA) paired with near-infrared spectroscopy (NIRS) was used as an easy-to-implement and environmentally friendly tool for this purpose. The capabilities of combining NIRS with ASCA were demonstrated by studying the effects of sampling site and year on the quality of 180 Austrian wheat samples across four sites over 3 years. It was found that the year, sample site, and their combination significantly (p < 0.001) affect the NIR spectra of wheat. NIR spectral preprocessing tools, usually employed in chemometric workflows, notably influence the results obtained by ASCA, particularly in terms of the variance attributed to annual and regional effects. The influence of the year was identified as the dominant factor, followed by region and the combined effect of year and sampling site. Interpretation of the loading plots obtained by ASCA demonstrates that wheat components such as proteins, carbohydrates, moisture, or fat contribute to annual and regional differences. Additionally, the protein, starch, moisture, fat, fiber, and ash contents of wheat samples obtained using a NIR-based calibration were found to be significantly influenced by year, sampling site, or their combination using ANOVA. This study shows that the combination of ASCA with NIRS simplifies NIR-based quality assessment of wheat without the need for time- and chemical-consuming calibration development.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"695–701 695–701"},"PeriodicalIF":4.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsmeasuresciau.4c00044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simplifying Wheat Quality Assessment: Using Near-Infrared Spectroscopy and Analysis of Variance Simultaneous Component Analysis to Study Regional and Annual Effects. 简化小麦品质评价：利用近红外光谱和方差分析同时成分分析研究区域和年度效应。

IF 4.6

ACS Measurement Science Au Pub Date : 2024-10-04 eCollection Date: 2024-12-18 DOI: 10.1021/acsmeasuresciau.4c00044

Stephan Freitag, Maximilian Anlanger, Maximilian Lippl, Klemens Mechtler, Elisabeth Reiter, Heinrich Grausgruber, Rudolf Krska

{"title":"Simplifying Wheat Quality Assessment: Using Near-Infrared Spectroscopy and Analysis of Variance Simultaneous Component Analysis to Study Regional and Annual Effects.","authors":"Stephan Freitag, Maximilian Anlanger, Maximilian Lippl, Klemens Mechtler, Elisabeth Reiter, Heinrich Grausgruber, Rudolf Krska","doi":"10.1021/acsmeasuresciau.4c00044","DOIUrl":"10.1021/acsmeasuresciau.4c00044","url":null,"abstract":"Assessing the quality of wheat, one of humanity's most important crops, in a straightforward manner, is essential. In this study, analysis of variance (ANOVA) simultaneous component analysis (ASCA) paired with near-infrared spectroscopy (NIRS) was used as an easy-to-implement and environmentally friendly tool for this purpose. The capabilities of combining NIRS with ASCA were demonstrated by studying the effects of sampling site and year on the quality of 180 Austrian wheat samples across four sites over 3 years. It was found that the year, sample site, and their combination significantly (p < 0.001) affect the NIR spectra of wheat. NIR spectral preprocessing tools, usually employed in chemometric workflows, notably influence the results obtained by ASCA, particularly in terms of the variance attributed to annual and regional effects. The influence of the year was identified as the dominant factor, followed by region and the combined effect of year and sampling site. Interpretation of the loading plots obtained by ASCA demonstrates that wheat components such as proteins, carbohydrates, moisture, or fat contribute to annual and regional differences. Additionally, the protein, starch, moisture, fat, fiber, and ash contents of wheat samples obtained using a NIR-based calibration were found to be significantly influenced by year, sampling site, or their combination using ANOVA. This study shows that the combination of ASCA with NIRS simplifies NIR-based quality assessment of wheat without the need for time- and chemical-consuming calibration development.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"695-701"},"PeriodicalIF":4.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11659997/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Electrochemiluminescence Detection of Dopamine Using Antifouling PEDOT-Modified SPEs for Complex Biological Samples 利用防污pedot修饰spe增强电化学发光检测复杂生物样品中的多巴胺

IF 4.6

ACS Measurement Science Au Pub Date : 2024-10-03 DOI: 10.1021/acsmeasuresciau.4c0005310.1021/acsmeasuresciau.4c00053

Tzu-Yu Kao, Chia-Hung Kuo, Yu-Wei Wu and Shyh-Chyang Luo*,

{"title":"Enhanced Electrochemiluminescence Detection of Dopamine Using Antifouling PEDOT-Modified SPEs for Complex Biological Samples","authors":"Tzu-Yu Kao, Chia-Hung Kuo, Yu-Wei Wu and Shyh-Chyang Luo*, ","doi":"10.1021/acsmeasuresciau.4c0005310.1021/acsmeasuresciau.4c00053","DOIUrl":"https://doi.org/10.1021/acsmeasuresciau.4c00053https://doi.org/10.1021/acsmeasuresciau.4c00053","url":null,"abstract":"Detecting medically important biomarkers in complex biological samples without prior treatment or extraction poses a major challenge in biomedical analysis. Electrochemical methods, specifically electrochemiluminescence (ECL), show potential due to their high sensitivity, minimal background noise, and straightforward operation. This study investigates the ECL performance of screen-printed electrodes (SPEs) modified with the conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives for dopamine (DA) detection. PEDOT modification significantly enhances ECL intensity, improves sensitivity, and expands the linear range for DA detection. Functionalizing PEDOT with ethylene glycol (EG) further enhances stability, specificity, and resistance to interferences for DA detection. These modified SPEs demonstrate the linear range of 1–200 μM and a detection limit as low as 0.887 nM (S/N = 3), surpassing many previous studies using SPEs. Moreover, the PEDOT-EG4-OMe-modified SPEs can reliably detect DA in solutions with high protein concentrations or artificial cerebrospinal fluid. These results suggest that the PEDOT derivative-modified SPE can serve as reusable and sensitive DA sensors in complex biological environments, highlighting the potential of the ECL system for a range of challenging applications.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"712–720 712–720"},"PeriodicalIF":4.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsmeasuresciau.4c00053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ATLAS-MAP: An Automated Test Station for Gated Electronic Transport Measurements ATLAS-MAP：门控电子传输测量的自动测试站

IF 4.6

ACS Measurement Science Au Pub Date : 2024-09-27 DOI: 10.1021/acsmeasuresciau.4c0003410.1021/acsmeasuresciau.4c00034

Amber Walton, Michael Manno, Paul J. Dauenhauer, C. Daniel Frisbie* and Daniel McDonald*,

{"title":"ATLAS-MAP: An Automated Test Station for Gated Electronic Transport Measurements","authors":"Amber Walton, Michael Manno, Paul J. Dauenhauer, C. Daniel Frisbie* and Daniel McDonald*, ","doi":"10.1021/acsmeasuresciau.4c0003410.1021/acsmeasuresciau.4c00034","DOIUrl":"https://doi.org/10.1021/acsmeasuresciau.4c00034https://doi.org/10.1021/acsmeasuresciau.4c00034","url":null,"abstract":"The diversification of electronic materials in devices provides a strong incentive for methods to rapidly correlate device performance with fabrication decisions. In this work, we present a low-cost automated test station for gated electronic transport measurements of field-effect transistors. Utilizing open-source PyMeasure libraries for transparent instrument control, the “ATLAS-MAP” system serves as a customizable interface between sourcemeters and samples under test and is programmed to conduct transfer curve and van der Pauw methods with static and sweeping gate voltages. Zinc oxide transistors of variable thickness (5, 10, and 20 nm) and channel size (50 μm to 3 mm, of equal length and width) were fabricated to validate the design. Standardization of testing procedures and raw data formatting enabled automated data analysis. A detailed list of parts and code files for the system are provided.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"659–667 659–667"},"PeriodicalIF":4.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsmeasuresciau.4c00034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ATLAS-MAP: An Automated Test Station for Gated Electronic Transport Measurements. ATLAS-MAP：门控电子传输测量的自动测试站。

IF 4.6

ACS Measurement Science Au Pub Date : 2024-09-27 eCollection Date: 2024-12-18 DOI: 10.1021/acsmeasuresciau.4c00034

Amber Walton, Michael Manno, Paul J Dauenhauer, C Daniel Frisbie, Daniel McDonald

引用次数: 0

Mechanism of a Novel Carrier Buffer in Arc Atomic Emission Spectroscopy. 一种新型载流子缓冲在电弧原子发射光谱中的机理。

IF 4.6

ACS Measurement Science Au Pub Date : 2024-09-25 eCollection Date: 2024-12-18 DOI: 10.1021/acsmeasuresciau.4c00025

Zhi-Xiong Li, Bo-Yu Du, Lian-Kai Zhang, Jing-Jiang Yang, Shun-Rong Xue, Gui-Ren Chen, Hui Yang, Can-Feng Li, Cheng-Zhong He, Qian-Shu Lu, Song Zhang, Qiang Li

{"title":"Mechanism of a Novel Carrier Buffer in Arc Atomic Emission Spectroscopy.","authors":"Zhi-Xiong Li, Bo-Yu Du, Lian-Kai Zhang, Jing-Jiang Yang, Shun-Rong Xue, Gui-Ren Chen, Hui Yang, Can-Feng Li, Cheng-Zhong He, Qian-Shu Lu, Song Zhang, Qiang Li","doi":"10.1021/acsmeasuresciau.4c00025","DOIUrl":"10.1021/acsmeasuresciau.4c00025","url":null,"abstract":"The research, which was a component of a broader initiative, focused on synthesizing a pioneering carrier buffer particularly intended for arc atomic emission spectroscopy. By analyzing various evaporation curves and quickly refining the formula of the novel carrier buffer, a more comprehensive, selective, and expedited condition was established for fractionating the target elements from the sample using the single-electrode carrier distillation method, thereby increasing the sensitivity of atomic emission spectrum analysis. Furthermore, the buffer mechanism was thoroughly investigated, using data from field emission scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and energy-dispersive spectrometry (EDS). The result revealed that multiphase chemical reactions occurred within the cup-shaped electrode micrographite reactor, where the components of the carrier buffer synergistically promoted the fractionation of the measured elements. Moreover, CaCO3 and Fe2O3 had a different \"catalytic\" impact. Finally, it was reasonable to assume that graphite remained inert in the reaction, and the composite molten body (mSiO2·nAl2O3·xCaO·yBaO·zFe2O3) developed during the interaction between the carrier buffer and sample matrix.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"638-650"},"PeriodicalIF":4.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660001/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142878241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism of a Novel Carrier Buffer in Arc Atomic Emission Spectroscopy 一种新型载流子缓冲在电弧原子发射光谱中的机理

IF 4.6

ACS Measurement Science Au Pub Date : 2024-09-25 DOI: 10.1021/acsmeasuresciau.4c0002510.1021/acsmeasuresciau.4c00025

Zhi-xiong Li, Bo-yu Du, Lian-kai Zhang*, Jing-jiang Yang, Shun-rong Xue, Gui-ren Chen, Hui Yang, Can-feng Li, Cheng-zhong He, Qian-shu Lu, Song Zhang and Qiang Li,

{"title":"Mechanism of a Novel Carrier Buffer in Arc Atomic Emission Spectroscopy","authors":"Zhi-xiong Li, Bo-yu Du, Lian-kai Zhang*, Jing-jiang Yang, Shun-rong Xue, Gui-ren Chen, Hui Yang, Can-feng Li, Cheng-zhong He, Qian-shu Lu, Song Zhang and Qiang Li, ","doi":"10.1021/acsmeasuresciau.4c0002510.1021/acsmeasuresciau.4c00025","DOIUrl":"https://doi.org/10.1021/acsmeasuresciau.4c00025https://doi.org/10.1021/acsmeasuresciau.4c00025","url":null,"abstract":"The research, which was a component of a broader initiative, focused on synthesizing a pioneering carrier buffer particularly intended for arc atomic emission spectroscopy. By analyzing various evaporation curves and quickly refining the formula of the novel carrier buffer, a more comprehensive, selective, and expedited condition was established for fractionating the target elements from the sample using the single-electrode carrier distillation method, thereby increasing the sensitivity of atomic emission spectrum analysis. Furthermore, the buffer mechanism was thoroughly investigated, using data from field emission scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and energy-dispersive spectrometry (EDS). The result revealed that multiphase chemical reactions occurred within the cup-shaped electrode micrographite reactor, where the components of the carrier buffer synergistically promoted the fractionation of the measured elements. Moreover, CaCO3 and Fe2O3 had a different “catalytic” impact. Finally, it was reasonable to assume that graphite remained inert in the reaction, and the composite molten body (mSiO2·nAl2O3·xCaO·yBaO·zFe2O3) developed during the interaction between the carrier buffer and sample matrix.","PeriodicalId":29800,"journal":{"name":"ACS Measurement Science Au","volume":"4 6","pages":"638–650 638–650"},"PeriodicalIF":4.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsmeasuresciau.4c00025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0