trace analysis Articles

  • Analysis of Pesticides in Food - Identification and Quantitation of Oxychlordane in the

    The trace analysis of pesticides in foods is commonly performed by gas chromatography with mass spectrometric detection. Typically, a general analytical method that can monitor a broad range of the potential pesticides in the sample is used, and the method is designed to provide a definitive measurement of the concentration of the various potential pesticides based on the intensity of a major ...


  • Analysis of Highly Mineralized Aqueous Solutions by ICP-AES

    Environmental Inductively Coupled Plasma (ICP) methods, such as EPA 200.7 or SW846 Method 6010, expect that samples will be fairly dilute without an overabundance of dissolved constituents (less than 2000 ppm Total Dissolved Solids). Laboratories running mine-impacted waters, such as acid rock drainage from exposed copper tailings, or mineral digests of a “waste” sample (that is ...

  • Quantitative Analysis of Geological Samples- X-Calibur

    Abstract Quantitative and qualitative analysis of geological samples (rocks and river sediments) was performed on Xenemetrix EDXRF Benchtop Spectrometer System, model X-Calibur  Objective: Perform XRF measurements on certified geological reference materials to build calibration curves for the major oxides (Na2O, MgO, SiO2, Al2O3, SiO2, P2O5, ...


    By Xenemetrix Ltd.

  • Analysis of Sewage and Sewage Sludge by Simultaneous ICP Spectroscopy

    In recent years, the development and expansion of sewage treatment facilities has resulted in increased amounts of sludge which is generated in the treatment process, and which has presented a problem due to processing of the sludge itself. Sludge is normally incinerated or solidified and then disposed of in landfills or recycled for use in construction materials such as concrete or ...

  • A critical analysis of maintenance training regimes for an industrialised economy

    As a management paradigm, it is accepted that maintenance management is less well developed than other management activities. One of the reasons for this underdevelopment can be traced to the way maintenance personnel are trained during their vocational, undergraduate and initial professional development phases. Historical records for all vocational training and all current undergraduate courses ...


    By Inderscience Publishers

  • Content Analysis of Toxic Elements in Soil by Simultaneous ICP

    Contaminated soil not only leads to contamination of untreated drinking water through permeation into river water and rainwater, it adversely affects health when the soil itself is directly ingested as a child puts the ground into a stoma into a play etc. Therefore, assessment of soil toxicity using a defined method is required. I In Japan, the Soil ...

  • High Speed Designs with PSpice Advanced Analysis

    The basic rule of thumb in terms of high speed design guidelines includes taking into account the parasitics of the transmission path/ channel link. With PSpice Advanced Analysis the capacitive parasitic effect of single ended traces can be included in the transient simulation.To showcase the impact of parasitic capacitance lets zoom in on a subset of a larger and complex design, and modify the ...


    By PCB Piezotronics, Inc.

  • Sustainability and the English Commons: A Legal Pluralist Analysis

    Abstract: Common land in England presents us with a complex proprietary system: although privately owned, third parties have common land use rights over it, which differ greatly in kind because of varied customary traditions. The paper will begin by tracing the modern history of the property rights on the commons, focusing on the eradication of customary proprietary traditions by modern ...


  • On-site Oil Analysis to extend oil drain intervals

    Fleets demonstrate ROI on do it yourself oil analysis “If the oil is good, why would you change it?” Gary Lentsch, CAFM, fleet manager for Eugene Water & Electric Board (EWEB), asked ...


    By Spectro Scientific

  • Ultra-Sensitive Coal Tar Distillate Analysis by GC-PID

    The distillation of Naphthenes and Coal Tars results in a complex array polynuclear aromatics, or which many do not show up in an analysis by GC-TCD or FID because they are at trace levels in the sample. In some cases these trace products are valuable and in sufficient quantity to warrant recovery. In order to discover hidden profits like this a GC equipped with a photo-ionization detector is ...


    By Buck Scientific Inc

  • A quick guide to oil analysis for engine test applications

    Reliability testing is a very important component of new engine development. Engineers need to fully understand and chart the engine lifetime performance under a variety of conditions before mass production may be considered. Many important performance data parameters are collected in real time through the many different types of sensors that are connected to the engine in the test cell and oil ...


    By Spectro Scientific

  • Analysis of Pesticides in Lemon Oil Extract Using Deconvolution Software

    The analysis of food for trace levels of pesticides is commonly performed to meet regulatory requirements and ensure product safety. In some instances, a natural product such as lemon oil is used as a flavor enhancer, and the level of pesticides in the enhancer must be ascertained before it can be added to the foodstuff. The analysis of pesticides in natural products can be fairly challenging, ...


  • Geochemical classification of groundwater using multivariate statistical analysis in Latvia

    Multivariate statistical methods – principal component analysis (PCA) and hierarchical cluster analysis (HCA) – are applied to identify geochemically distinct groundwater groups in the territory of Latvia. The main processes observed to be responsible for groundwater chemical composition are carbonate and gypsum dissolution, fresh and saltwater mixing and ion exchange. On the basis of major ...


    By IWA Publishing

  • Analysis of Pesticides in Citrus Oil Using a Shimadzu GCMS-TQ8030

    Contamination of consumer products with pesticides is a growing concern because of recognized adverse health effects, increasing world-wide usage of pesticides, and imports of raw materials from foreign sources. Citrus oils have been used for centuries for a wide range of applications: flavor/fragrance, various medicinal purposes, and others. In recent years, new uses of citrus oils as cleaners ...

  • Analysis of chromium and copper by cathodic stripping voltammetry with mixed ligands

    Abstract Cathodic adsorptive stripping voltammetry is one of the most sensitive analytical methods for ultratrace analysis. The detection limit is usually lower than 10 -9 mol/L. Most adsorptive stripping procedures have been focused on the one ligand/one analyte approach. In order to reduce analysis time and sample volume, the possibility of simultaneously determining several metals by cathodic ...


    By Springer

  • Analysis of TNT, RDX, and CL-20 by APCI LC/MS/MS

    IntroductionThe detection and characterization of explosives has gained the interest of various analytical laboratories and researchgroups around the world.For the forensic community, trace analysis of explosive residues after arson and terrorism is of critical interest.Biologists and environmentalists monitor biotransformation of these high energy compounds when evaluating ...


  • Analysis of Opioids Using Isotope Dilution with GCMS-TQ8030 GC/MS/MS

    Development of methods for analysis of drugs of abuse has become a high priority for both forensic toxicology and law enforcement. The large numbers of individual drugs and new "designer drugs" has made method development for these compounds a significant undertaking. Gas chromatography mass spectrometry (GCMS) has been used extensively for analysis of drug residues and trace-level drugs in ...

  • Local innovation system governance and performance: a comparative analysis of Oxfordshire, Stuttgart and Toulouse

    In this paper, we trace the development of three "ideal types" of local innovation system governance since the Second World War in three highly innovative city regions. The types of innovation governance are dirigiste, networked and grass roots. These are analysed in the case study areas of Oxfordshire, Stuttgart and Toulouse. It is shown that the hegemony of each type of governance changes over ...


    By Inderscience Publishers

  • Chemical analysis of drinking water from some communities in the Brong Ahafo region

    This study consisted of the determination of the trace metals and some physiochemical properties in drinking water samples from the Brong Ahafo region of the Republic of Ghana, where drinking water samples are not treated before it is consumed. The purpose was to ascertain the quality of water from these sources. Samples were taken from fifteen sampling points and analyzed for the following ...

  • Analysis of Nitrofurans Metabolites by Positive Ion Electrospray LC/MS/MS

    IntroductionNitrofuran antibiotics are veterinary drugs. The use of these in food production is already banned in the United States,Australia, Canada, Japan, Singapore, Bangladesh, and the European Union because of a possible increased cancer-riskthrough long-term consumption.Trace amounts of nitrofurans contamination has been found in warm-water prawns, shrimp, and chicken. ...


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