Journal of Automated Methods & Management in Chemistry最新文献

{"title":"Abstracts of papers presented at the 2005 pittsburgh conference.","authors":"Peter B Stockwell","doi":"10.1155/JAMMC.2005.59","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.59","url":null,"abstract":"<p><p>To attend or not to attend, that is the question. The Pittsburgh Conference continues to pose this conundrum to conferees and exhibitors alike. This year's conference was the first to be presented without a set of paper abstracts-a good thing some would say but this old codger always used the paper abstracts to select papers of interest to our readership and to seek a full publication. The exhibit took its usual format but it seemed that there were less manufacturers present. The information presented to the attendees was also lacking and many companies' details were missing from the final program book, an omission no doubt on their behalf-my company was one of these-however I feel sure that past Pittcon organizers would have been more persistent in getting the required details for the audience. As is now the norm, many of the presentations take the form of posters displayed within the exhibition area. Without a driver to get the audience there, the traffic was slow, to say the least. Lecture presentations were also attended in a mixed fashion. So the Pittsburgh Conference show moves on, and again next year it will be held in Orlando from 12 March to 17 March 2006. No doubt I will be there making it a straight 31 in a row; in Pittsburgh Conference terms I am just a beginner with many of the attendees making more shows in a run than that. Selected abstracts dealing with topics of interest to the readers of this journal follow-hopefully many of these groups will be willing to publish their work either within this journal or elsewhere.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"59-209"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.59","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27794470","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}

{"title":"Modeling of fenton reaction for the oxidation of phenol in water.","authors":"Olivier Chedeville,&nbsp;Ayse Tosun-Bayraktar,&nbsp;Catherine Porte","doi":"10.1155/JAMMC.2005.31","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.31","url":null,"abstract":"<p><p>Phenol is an organic pollutant found in various types of industrial wastewater. Due to its bactericidal properties, it is difficult to eliminate it by classic treatment methods. In this work, the degradation of this compound by Fenton reaction at mild temperature and pressure conditions is studied. An experimental design was applied in order to quantify the influence of operating parameters on the efficiency of this method. The field of study was defined between 20 and 50(;)C for the temperature, 1 and 4 g L(-1) for the phenol concentration, 10 and 28 for the H(2)O(2) to phenol molar ratio, and 0.02 to 0.08 for the Fe(II) to phenol concentration ratio. It was shown that the temperature and the amount of catalyst have a strong influence. A model giving the decrease of COD was established. The COD decrease was between 40% and 72% and phenol had totally disappeared.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"31-6"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.31","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27795251","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}

{"title":"Determination of mercury in an assortment of dietary supplements using an inexpensive combustion atomic absorption spectrometry technique.","authors":"Keith E Levine,&nbsp;Michael A Levine,&nbsp;Frank X Weber,&nbsp;Ye Hu,&nbsp;Jason Perlmutter,&nbsp;Peter M Grohse","doi":"10.1155/JAMMC.2005.211","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.211","url":null,"abstract":"<p><p>The concentrations of mercury in forty, commercially available dietary supplements, were determined using a new, inexpensive analysis technique. The method involves thermal decomposition, amalgamation, and detection of mercury by atomic absorption spectrometry with an analysis time of approximately six minutes per sample. The primary cost savings from this approach is that labor-intensive sample digestion is not required prior to analysis, further automating the analytical procedure. As a result, manufacturers and regulatory agencies concerned with monitoring lot-to-lot product quality may find this approach an attractive alternative to the more classical acid-decomposition, cold vapor atomic absorption methodology. Dietary supplement samples analyzed included astragalus, calcium, chromium picolinate, echinacea, ephedra, fish oil, ginger, ginkgo biloba, ginseng, goldenseal, guggul, senna, St John's wort, and yohimbe products. Quality control samples analyzed with the dietary supplements indicated a high level of method accuracy and precision. Ten replicate preparations of a standard reference material (NIST 1573a, tomato leaves) were analyzed, and the average mercury recovery was 109% (2.0% RSD). The method quantitation limit was 0.3 ng, which corresponded to 1.5 ng/g sample. The highest found mercury concentration (123 ng/g) was measured in a concentrated salmon oil sample. When taken as directed by an adult, this product would result in an approximate mercury ingestion of 7 mug per week.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"211-6"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.211","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27795254","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}

{"title":"Validation of platelet counting accuracy with the celltac f automated hematology analyzer.","authors":"Yutaka Nagai,&nbsp;Hiroshi Kondo,&nbsp;Noriyuki Tatsumi","doi":"10.1155/JAMMC.2005.235","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.235","url":null,"abstract":"<p><p>Rapid and accurate analysis of platelet count plays an important role in evaluating hemorrhagic status. Therefore, we evaluated platelet counting performance of a hematology analyzer, Celltac F (MEK-8222, Nihon Kohden Corporation, Tokyo, Japan), that features easy use with low reagent consumption and high throughput while occupying minimal space in the clinical laboratory. All blood samples were anticoagulated with dipotassium ethylenediaminetetraacetic acid (EDTA-2K). The samples were stored at room temperature (18(;)C-22(;)C) and tested within 4 hours of phlebotomy. We evaluated the counting ability of the Celltac F hematology analyzer by comparing it with the platelet counts obtained by the flow cytometry method that ISLH and ICSH recommended, and also the manual visual method by Unopette (Becton Dickinson Vacutainer Systems). The ICSH/ISLH reference method is based on the fact that platelets can be stained with monoclonal antibodies to CD41 and/or CD61. The dilution ratio was optimized after the precision, coincidence events, and debris counts were confirmed by the reference method. Good correlation of platelet count between the Celltac F and the ICSH/ISLH reference method (r = 0.99, and the manual visual method (r= 0.93) were obtained. The regressions were y = 0.90 x+9.0 and y=1.11x+8.4, respectively. We conclude that the Celltac F hematology analyzer for platelet counting was well suited to the ICSH/ISLH reference method for rapidness and reliability.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"235-9"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.235","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27795258","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}

{"title":"Automated Quality Assurance of Online NIR Analysers.","authors":"Kari Aaljoki","doi":"10.1155/JAMMC.2005.44","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.44","url":null,"abstract":"<p><p>Modern NIR analysers produce valuable data for closed-loop process control and optimisation practically in real time. Thus it is highly important to keep them in the best possible shape. Quality assurance (QA) of NIR analysers is an interesting and complex issue because it is not only the instrument and sample handling that has to be monitored. At the same time, validity of prediction models has to be assured. A system for fully automated QA of NIR analysers is described. The system takes care of collecting and organising spectra from various instruments, relevant laboratory, and process management system (PMS) data. Validation of spectra is based on simple diagnostics values derived from the spectra. Predictions are validated against laboratory (LIMS) or other online analyser results (collected from PMS). The system features automated alarming, reporting, trending, and charting functions for major key variables for easy visual inspection. Various textual and graphical reports are sent to maintenance people through email. The software was written with Borland Delphi 7 Enterprise. Oracle and PMS ODBC interfaces were used for accessing LIMS and PMS data using appropriate SQL queries. It will be shown that it is possible to take actions even before the quality of predictions is seriously affected, thus maximising the overall uptime of the instrument.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"44-9"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.44","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27794467","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}

{"title":"Mathematical modeling of perfect decoupled control system and its application: a reverse osmosis desalination industrial-scale unit.","authors":"C Riverol,&nbsp;V Pilipovik","doi":"10.1155/JAMMC.2005.50","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.50","url":null,"abstract":"<p><p>This short paper outlines the computer simulation using real data of a decoupled control system for a desalination unit. The control strategy incorporated a perfect decoupled controller for the control of the fresh water flow and conductivity. The model was estimated using real data and empirical tools instead of mass balances. The success is demonstrated in the reduction of wide fluctuations in the variables of the process and decreasing of the sensibility to the changes of pressure and/or pH and allows predicting problems of quality of water and waste of energy in the future.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"50-4"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.50","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27794468","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}

{"title":"Automated Microdosing System for Integration With a Miniaturized High-pressure Reactor System.","authors":"Norbert Stoll,&nbsp;Ihsan Hawali,&nbsp;Kerstin Thurow","doi":"10.1155/JAMMC.2005.230","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.230","url":null,"abstract":"<p><p>We present a new automated dosing system developed by the Institute for Automation of the University of Rostock, Germany. The new system is designed for the dosing of chemical liquids in the range of 50 muL-2.5 mL. It is integrated into a miniaturized reactor system to be used in the field of combinatorial synthesis. The reactor system can be pressurized up to 150 bar and tempered up to 200(;)C. A wide range of liquids with different physical properties can be handled with the new dosing system. A detailed description of the new dosing system in terms of function and operation as well as the relevant features and potential benefits is provided.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"230-4"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.230","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27795257","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}

{"title":"Determination of Zinc-Based Additives in Lubricating Oils by Flow-Injection Analysis with Flame-AAS Detection Exploiting Injection with a Computer-Controlled Syringe.","authors":"Gustavo Pignalosa,&nbsp;Moisés Knochen,&nbsp;Noel Cabrera","doi":"10.1155/JAMMC.2005.1","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.1","url":null,"abstract":"<p><p>A flow-injection system is proposed for the determination of metal-based additives in lubricating oils. The system, operating under computer control uses a motorised syringe for measuring and injecting the oil sample (200 muL) in a kerosene stream, where it is dispersed by means of a packed mixing reactor and carried to an atomic absorption spectrometer which is used as detector. Zinc was used as model analyte. Two different systems were evaluated, one for low concentrations (range 0-10 ppm) and the second capable of providing higher dilution rates for high concentrations (range 0.02%-0.2% w/w). The sampling frequency was about 30 samples/h. Calibration curves fitted a second-degree regression model (r(2) = 0.996). Commercial samples with high and low zinc levels were analysed by the proposed method and the results were compared with those obtained with the standard ASTM method. The t test for mean values showed no significant differences at the 95% confidence level. Precision (RSD%) was better than 5% (2% typical) for the high concentrations system. The carryover between successive injections was found to be negligible.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27794727","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}

{"title":"Simultaneous Determination of Dissolved Organic Carbon and Total Dissolved Nitrogen on a Coupled High-Temperature Combustion Total Organic Carbon-Nitrogen Chemiluminescence Detection (HTC TOC-NCD) System.","authors":"Xi Pan,&nbsp;Richard Sanders,&nbsp;Alan D Tappin,&nbsp;Paul J Worsfold,&nbsp;Eric P Achterberg","doi":"10.1155/JAMMC.2005.240","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.240","url":null,"abstract":"<p><p>The marine biogeochemistries of carbon and nitrogen have come under increased scrutiny because of their close involvement in climate change and coastal eutrophication. Recent studies have shown that the high-temperature combustion (HTC) technique is suitable for routine analyses of dissolved organic matter due to its good oxidation efficiency, high sensitivity, and precision. In our laboratory, a coupled HTC TOC-NCD system with a sample changer was used for the automated and simultaneous determination of dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) in seawater samples. TOC control software was used for TOC instrument control, DOC data acquisition, and data analysis. TDN data acquisition and manipulation was undertaken under LabVIEW. The combined system allowed simultaneous determination of DOC and TDN in the same sample using a single injection and provided low detection limits and excellent linear ranges for both DOC and TDN. The risk of contamination has been remarkably reduced due to the minimal sample manipulation and automated analyses. The optimised system provided a reliable tool for the routine determination of DOC and TDN in marine waters.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"240-6"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.240","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27795259","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}

{"title":"MODULAR ANALYTICS: A New Approach to Automation in the Clinical Laboratory.","authors":"Gary L Horowitz,&nbsp;Zahur Zaman,&nbsp;Norbert J C Blanckaert,&nbsp;Daniel W Chan,&nbsp;Jeffrey A Dubois,&nbsp;Olivier Golaz,&nbsp;Noury Mensi,&nbsp;Franz Keller,&nbsp;Herbert Stolz,&nbsp;Karl Klingler,&nbsp;Alessandro Marocchi,&nbsp;Lorenzo Prencipe,&nbsp;Ronald W McLawhon,&nbsp;Olaug L Nilsen,&nbsp;Michael Oellerich,&nbsp;Hilmar Luthe,&nbsp;Jean-Luc Orsonneau,&nbsp;Gérard Richeux,&nbsp;Fernando Recio,&nbsp;Esther Roldan,&nbsp;Lars Rymo,&nbsp;Anne-Charlotte Wicktorsson,&nbsp;Shirley L Welch,&nbsp;Heinrich Wieland,&nbsp;Andrea Busse Grawitz,&nbsp;Hiroshi Mitsumaki,&nbsp;Margaret McGovern,&nbsp;Katherine Ng,&nbsp;Wolfgang Stockmann","doi":"10.1155/JAMMC.2005.8","DOIUrl":"https://doi.org/10.1155/JAMMC.2005.8","url":null,"abstract":"<p><p>MODULAR ANALYTICS (Roche Diagnostics) (MODULAR ANALYTICS, Elecsys and Cobas Integra are trademarks of a member of the Roche Group) represents a new approach to automation for the clinical chemistry laboratory. It consists of a control unit, a core unit with a bidirectional multitrack rack transportation system, and three distinct kinds of analytical modules: an ISE module, a P800 module (44 photometric tests, throughput of up to 800 tests/h), and a D2400 module (16 photometric tests, throughput up to 2400 tests/h). MODULAR ANALYTICS allows customised configurations for various laboratory workloads. The performance and practicability of MODULAR ANALYTICS were evaluated in an international multicentre study at 16 sites. Studies included precision, accuracy, analytical range, carry-over, and workflow assessment. More than 700 000 results were obtained during the course of the study. Median between-day CVs were typically less than 3% for clinical chemistries and less than 6% for homogeneous immunoassays. Median recoveries for nearly all standardised reference materials were within 5% of assigned values. Method comparisons versus current existing routine instrumentation were clinically acceptable in all cases. During the workflow studies, the work from three to four single workstations was transferred to MODULAR ANALYTICS, which offered over 100 possible methods, with reduction in sample splitting, handling errors, and turnaround time. Typical sample processing time on MODULAR ANALYTICS was less than 30 minutes, an improvement from the current laboratory systems. By combining multiple analytic units in flexible ways, MODULAR ANALYTICS met diverse laboratory needs and offered improvement in workflow over current laboratory situations. It increased overall efficiency while maintaining (or improving) quality.</p>","PeriodicalId":15248,"journal":{"name":"Journal of Automated Methods & Management in Chemistry","volume":"2005 ","pages":"8-25"},"PeriodicalIF":0.0,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/JAMMC.2005.8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"27794671","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}