Journal of Automated Methods & Management in Chemistry最新文献_第4页

An optical approach for the determination of droplet volumes in nanodispensing. 纳米点胶中液滴体积测定的光学方法。

Journal of Automated Methods & Management in Chemistry Pub Date : 2009-01-01 Epub Date: 2009-05-04 DOI: 10.1155/2009/198732

Kerstin Thurow, Thomas Krüger, Norbert Stoll

引用次数: 23

Trace lead measurement and online removal of matrix interference in geosamples by ion-exchange coupled with flow injection and hydride generation atomic fluorescence spectrometry. 离子交换-流动注射-氢化物发生原子荧光光谱法测定地球样品中痕量铅并在线去除基质干扰。

Journal of Automated Methods & Management in Chemistry Pub Date : 2009-01-01 Epub Date: 2009-09-06 DOI: 10.1155/2009/101679

Chun-Hua Tan, Xu-Guang Huang

{"title":"Trace lead measurement and online removal of matrix interference in geosamples by ion-exchange coupled with flow injection and hydride generation atomic fluorescence spectrometry.","authors":"Chun-Hua Tan, Xu-Guang Huang","doi":"10.1155/2009/101679","DOIUrl":"https://doi.org/10.1155/2009/101679","url":null,"abstract":"A flow injection method has been developed for the direct determination of free available Pb(II). The method is based on the chemical sorption of Pb(II), from pH7 solutions, on a column packed of chelating resin. The retained complex was afterwards eluted with hydrochloric acid followed by hydride generation with reduction by tetrahydroborate. The preconcentration system proposed in this paper allows the elimination of great part of the saline content in the sample. A thorough scrutiny was made for chemical variables and FI parameters. With a sampling volume of 10.5 mL, quantitative retention of Pb (II) was obtained, along with an enrichment factor of 40 and a sampling frequency of 15 h(-1). The detection limit, defined as 3 times the blank standard deviation (3sigma), was 0.0031 ngml(-1). The precision was characterized by an RSD value of 3.78% (at the 4 ng.ml(-1) level, n = 11). The developed method has been applied to the determination of trace Pb in three standard reference materials. Accuracy was assessed through comparing the results with the accepted values.","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2009 ","pages":"101679"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2009/101679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28395467","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: 8

A two-time scale decentralized model predictive controller based on input and output model. 一种基于输入输出模型的双时间尺度分散模型预测控制器。

Journal of Automated Methods & Management in Chemistry Pub Date : 2009-01-01 Epub Date: 2009-09-30 DOI: 10.1155/2009/164568

Jian Niu, Jun Zhao, Zuhua Xu, Jixin Qian

引用次数: 11

Highly ordered Pd nanowire array by template fabrication for propanol electrooxidation. 用模板制备高度有序钯纳米线阵列用于丙醇电氧化。

Journal of Automated Methods & Management in Chemistry Pub Date : 2009-01-01 Epub Date: 2009-11-24 DOI: 10.1155/2009/496281

Zhihong Sun, Faliang Cheng, Xiangcheng Dai

引用次数: 4

The effect of isotopic composition on the uncertainty of routine metal mass concentration measurements in ambient air. 同位素组成对环境空气中常规金属质量浓度测量不确定性的影响。

Journal of Automated Methods & Management in Chemistry Pub Date : 2008-01-01 Epub Date: 2009-02-05 DOI: 10.1155/2008/504092

Richard J C Brown, Sharon L Goddard, Andrew S Brown, Rachel E Yardley

{"title":"The effect of isotopic composition on the uncertainty of routine metal mass concentration measurements in ambient air.","authors":"Richard J C Brown, Sharon L Goddard, Andrew S Brown, Rachel E Yardley","doi":"10.1155/2008/504092","DOIUrl":"10.1155/2008/504092","url":null,"abstract":"The main sources of uncertainty encountered during the analysis of the mass concentration of metals in ambient air as part of the operation of the UK Heavy Metals Monitoring Network are presented. It is observed that the uncertainty contribution from possible variation in the isotopic composition of the sample depends on the element in question, but can be significant (e.g., for Pb, Cd, and Hg). The working curve method for the ICP-MS analysis of metals in solution, with a low resolution, high throughput instrument measuring at one m/z ratio per element, relies on the relative abundance of the isotopes under consideration being the same in both the sample and the calibration solution. Calculation of the uncertainty in this analysis assumes that the isotopic composition variation within the sample and calibration solution is limited to a defined range. Therefore, in order to confirm the validity of this quantification methodology and its uncertainty budget, the isotopic composition of the calibration standards used for quantification has been determined. The results of this analysis are presented here.","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2008 ","pages":"504092"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2637369/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27990795","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

An innovative approach to functionality testing of analysers in the clinical laboratory. 临床实验室分析仪功能测试的创新方法。

Journal of Automated Methods & Management in Chemistry Pub Date : 2008-01-01 DOI: 10.1155/2008/183747

Wolfgang Stockmann, Werner Engeldinger, Albert Kunst, Margaret McGovern

引用次数: 0

Flow injection potentiometric assay of hexoprenaline in its pure state, pharmaceutical preparations, and biological samples. 纯己丙肾上腺素、药物制剂和生物样品的流动注射电位测定。

Journal of Automated Methods & Management in Chemistry Pub Date : 2008-01-01 DOI: 10.1155/2008/586310

Rasha M El-Nashar

引用次数: 7

Abstracts of papers presented at the 2008 pittsburgh conference. 2008年匹兹堡会议上发表的论文摘要。

Journal of Automated Methods & Management in Chemistry Pub Date : 2008-01-01 Epub Date: 2009-04-05 DOI: 10.1155/2008/502953

Peter B Stockwell

{"title":"Abstracts of papers presented at the 2008 pittsburgh conference.","authors":"Peter B Stockwell","doi":"10.1155/2008/502953","DOIUrl":"https://doi.org/10.1155/2008/502953","url":null,"abstract":"George Gallatig and John Petrakis \u0000 \u0000 \u0000Introducing a standardized enterprise-wide solution can lower the total cost of ownership (TCO) for laboratory information management systems (LIMSs). Electronic notebooks (ELNs) can improve the personal productivity of analysts working in research and quality-control laboratories. Data management and data warehouse systems provide ready access to information, and can help reduce search time and duplication of effort by knowledge workers. Providing integrated analytical tool kits and training for scientists can reduce some of the chaos, support costs for research, and provide new opportunities for sharing and building on innovative ideas. \u0000 \u0000We intuitively know that there is value in implementing these laboratory informatics solutions. These solutions help companies in all industries to produce better products with shorter development cycle times and at lower cost. However, business decisions to acquire them have to be based on the review of a business case including a cost justification. \u0000 \u0000This presentation will present ideas and a model for calculating the benefits for laboratory informatics solutions. The model will include rules of thumb based on industry experience for projecting productivity improvements resulting from the introduction of technology to replace functions typically performed manually like data entry, data access, or compilation of reports. However, projections of productivity improvement are only part of the story. These need to be translated into actual benefits that are measurable by the corporation in terms of speed, productivity, or cost. The author will describe strategies for accomplishing this. These will be supported by examples. \u0000 \u0000This will be a valuable presentation for anyone involved in looking at the impact of the introduction of laboratory informatics technology, whether developing a business case or looking at benefits being captured by systems that have been implemented.","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2008 ","pages":"502953"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2008/502953","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28181940","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: 1

Online preconcentration and determination of trace amounts of zinc in nature waters. 自然水中微量锌的在线富集和测定。

Journal of Automated Methods & Management in Chemistry Pub Date : 2008-01-01 DOI: 10.1155/2008/742319

Liang Wei, Xinshen Zhang, Yichun Dai, Jin Huang, Yong-Hong Xie, Kai Xiao

引用次数: 7

Rapid and sensitive determination of trace chloride ion in drinks using resonance light scattering technique. 共振光散射技术快速灵敏测定饮料中痕量氯离子。

Journal of Automated Methods & Management in Chemistry Pub Date : 2008-01-01 DOI: 10.1155/2008/745636

Hui Cao, Dong Hui Wu

{"title":"Rapid and sensitive determination of trace chloride ion in drinks using resonance light scattering technique.","authors":"Hui Cao, Dong Hui Wu","doi":"10.1155/2008/745636","DOIUrl":"https://doi.org/10.1155/2008/745636","url":null,"abstract":"A resonance light scattering (RLS) technique to determine chloride ions in drinks was developed. Chloride ions were found to bind Ag(+) forming AgCl aggregates that produced intense resonance scattering light. Effects of factors such as acidity, ionic strength, and coexistent interferents on the RLS of AgCl aggregates were investigated. The pH of solution almost did not affect the production of RLS and few foreign species interfered with the detection of chloride ions. The resonance scattering light intensity at the maximum peak of 571 nm was linear to the concentration of chloride ions in the range of 1.42-8.52 ng mL(-1) with a detection limit of 0.71 ng mL(-1). To determine the feasibility of the proposed method, some samples of water and drinks were analyzed. The attained results were in agreement with that of ion-selective electrode method. Good recovery results were also obtained with the range of 94.08-105.63%. The sensitivity and selectivity of the RLS method are high enough to determine trace amounts of chloride ions without any significant interference from high concentration of other components such as common anions and cations.","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2008 ","pages":"745636"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2008/745636","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27466452","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: 14