headspace analysis Articles
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Two Headspace Solutions for the Analysis of Dissolved Gases in Water by Method RSKSOP-175
Abstract Dissolved gas analysis has been performed using a simplified headspace method following US EPA method RSKSOP-175. This method describes the preparation and analysis of dissolved gases in water. Recent developments in natural gas drilling from deep underground shale formations, using techniques such as hydraulic fracturing, have renewed interest in this method to determine dissolved gases ...
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Achieving low-level detection of benzene in beverages with an automated headspace vial sampler
Abstract Eight commercially available beverage samples were selected for low-level detection of benzene by static headspace analysis. This study will use the Teledyne Tekmar HT3 Automated Headspace Vial Sampler to analyze parts per trillion (ppt) levels of benzene in beverages. A GC/MS system will be employed in full scan/SIM mode for separation and detection of benzene, as well as other volatile ...
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Alternative Methods to RSK 175 Using Purge and Trap Concentration and Automated Headspace for the Analysis of Dissolved Gases in Drinking Water
Abstract With the growing price of oil, many alternative energy sources are being explored. Natural gas prices are actually decreasing, in large part to the use of hydraulic fracturing in areas like the Marcellus Shale in Pennsylvania. Due to increased concern over the hydraulic fracturing process and the release of methane and other chemicals into the local drinking water, a need has developed ...
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Blood Alcohol Determination with Teledyne Tekmar HT3 Automated Static/Dynamic Headspace Analyzer
Introduction Analysis of biological fluids for volatile components by headspace analysis is routinely used by forensic laboratories around the world. One of the more common of these headspace analyses is the determination of blood alcohol in cases involving suspected DUI or OVI. This determination is typically accomplished with an injection of the sample onto two columns, one for quantitation and ...
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Headspace gas analysis video
Why does headspace gas need to be measured? To check the continuity and quality of the gas supply to the packing machine, the efficiency of the flush/vacuum cycle and the integrity of the pack seal. To optimise gas usage and save costs. To meet customer headspace gas quality standards. To present quality data to auditors, food quality inspectors or as part of a quality process e.g. ...
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What quality is your olive oil? Headspace analysis with FlavourSpec
High quality virgin and extra virgin olive oils are pure and healthy natural products remarkable for their complex rich flavour. The assurance of best quality is of utmost importance for every party of its supply ...
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Biotic and abiotic anaerobic transformations of trichloroethene and cis-1,2-dichloroethene in fractured sandstone
A fractured sandstone aquifer at an industrial site in southern California is contaminated with trichloroethene (TCE) and cis- 1,2-dichloroethene (cis-DCE) to depths in excess of 244 m. Field monitoring data suggest thatTCEis undergoing reduction to cis- DCE and that additional attenuation is occurring. However, vinyl chloride (VC)andethenehavenotbeendetected in significant amounts, so that if ...
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Headspace Analysis of Volatile Organic Compounds (VOC’s) in Contact Packaging Materials Using the HT3 Automated Headspace Analyzer
Abstract Regulatory agencies such as the United States Food and Drug Administration (USFDA) and the European Union (EU) have published regulations and provided guidance on the use of chemicals in food packaging materials. Teledyne Tekmar provides method parameters for the HT3TM Automated Headspace Analyzer for the determination of volatile compounds that may be contained in food contact packaging ...
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High Temperature Headspace Assay of Polymers with Teledyne Tekmar HT3 Static Headspace Instrument
Introduction Since the early 1990’s air quality in enclosed spaces such as office buildings, homes and automobiles has become a major environmental concern. The concern is that man made materials used in these environments release volatile (VOC) and semivolatile organic compound (SVOC) reducing air quality in these environments. Manufactures of materials used in these environments have ...
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The Use of Systech Illinois` Gaspace Headspace Gas Analysers in the Pre-Packed Meat Industry - Case Study
Our Gaspace headspace gas analyzers play a key role in quality assurance for Tulip International’s Modified Atmosphere Packaging of pre-packed meat. Tulip International's cooked meats division is one of the largest producers of pre-packed bacon in the UK. Some of the output is vacuum packed, but the majority is packed in rigid, modified atmosphere packs (MAP) because the product looks ...
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Blood Alcohol Determination with the Teledyne Tekmar HT3 and Young Lin YL6500 Gas Chromatograph
Introduction Police and forensic laboratories around the world routinely use headspace-gas chromatography for volatile components in biological fluids. One of the more common headspace analyses is the determination of blood alcohol in cases involving suspected DUI or OVI. The blood alcohol limit for some countries, like Korea and South Africa, is as low as 0.05%. This study evaluates Teledyne ...
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Effect of trihalomethanes (chloroform and bromoform) on human haematological count
With the increasing concerns about the harmful effects of disinfection products, the process of chlorination is becoming questionable. Bromoform and chloroform are among the most frequently occurring disinfection by-products. Haematological parameters are an important indicator of human well-being which is why the prime objective of the current study was to conduct a dose–response assessment ...
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Residual Solvents Testing per ASTM F1884-04 with the Versa and HT3 Automated Headspace Sampler
Introduction Police and forensic laboratories around the world routinely use headspace-gas chromatography for volatile components in biological fluids. One of the more common headspace analyses is the determination of blood alcohol in cases involving suspected DUI or OVI. The blood alcohol limit for some countries, like Korea and South Africa, is as low as 0.05%. This study evaluates Teledyne ...
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Alternative Methods to RSK 175 Using Purge and Trap Concentration and Automated Headspace for the Analysis of Dissolved Gases in Drinking Water
Introduction Police and forensic laboratories around the world routinely use headspace-gas chromatography for volatile components in biological fluids. One of the more common headspace analyses is the determination of blood alcohol in cases involving suspected DUI or OVI. The blood alcohol limit for some countries, like Korea and South Africa, is as low as 0.05%. This study evaluates Teledyne ...
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Identification of α-β unsaturated aldehydes as sources of toxicity to activated sludge biomass in polyester manufacturing wastewater
Wastewater generated in industrial production processes are often contaminated by hazardous chemicals. Characterization by means of toxicity-directed analysis is useful for identifying which fractions of a waste stream possess the most toxicity. We applied this approach to evaluate toxic components of a polyester manufacturing wastewater. Using the reduction in oxygen uptake rate of activated ...
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Determining Volatile Organic Compounds from Difficult Soil Matrices Utilizing both Headspace and Purge and Trap Techniques
Abstract Purge and Trap concentration (P&T) along with Gas Chromatography/Mass Spectrometry (GC/MS) analysis is the traditionally used method for the analysis of Volatile Organic Compounds (VOCs). This application note investigates P&T concentration of VOCs in soils utilizing both the standard soil and the automated methanol extraction technique of Teledyne Tekmar’s Atomx, a ...
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Fuel dilution in engine crankcases: A fast field method for the workshop
What is fuel dilution and why is it a problem? Fuel dilution in oil is a condition caused by excess, unburned fuel mixing with engine oil in an engine crankcase. Hydrocarbon-based fuel, usually with a lower vapor pressure than the lubricant, has a thinning effect, lowering the oil viscosity. Oil film strength is reduced, increasing the cylinder liner and bearing wear. Reciprocating engines ...
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Detection Limits of EPA Method 8260 with Static and Dynamic Headspace GC-MS Analysis
Abstract EPA Method 8260 provides for the analysis of volatile organic compounds (VOC) in various solid waste matrices. The referenced EPA Method 5021, allows for the introduction of VOCs from solid samples by automated static headspace. The static headspace method permits the prescreening of samples to minimize over saturation of the chromatography system. The Teledyne Tekmar HT3 static and ...
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Detection Limits of EPA Method 8260 with Static and Dynamic Headspace GC/MS Analysis
Total Organic Carbon (TOC) analysis is a fast and efficient analytical technique that can be easily implemented in pharmaceutical manufacturing for cleaning validation due to the all-inclusive nature of the test for carbon. It can be used to test for residues of previously manufactured products, cleaning detergents, solvents, by-products, and degradants. Although the current requirement set by ...
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Photoionisation Detector (PID) for Arson Investigation
One such tool for the detection of accelerants at fire scenes recommended by investigators3 is the photoionisation detector (PID) which has already proven to be an ideal solution for the detection of relatively low level VOCs for health & safety and environmental applications. These devices are battery powered and portable and can be deployed rapidly and safely to test areas between ...
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