The core of PerkinElmer’s headspace is our patented pressure-balance technology that far surpasses valve and loop in performance when it comes to accuracy and repeatability. Pressure-balance provides rapid transfer of analytes to the GC without re-equilibration in a gas-sampling valve or syringe and minimizes loss of analytes. Injection amount is programmable by time or by volume without requiring any hardware change.
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Butylated hydroxytoluene (BHT) is a common food additive used to protect foods from spoilage. Concern exists that long-term human consumption of BHT may have potential health risks. Analysis of BHT is needed for both food quality and safety reasons.
Trimethylamine (TMA) is a volatile organic compound known to be a major contributor to malodor pollution. Created in a gaseous form as a result of the manufacture, use and disposal of materials utilized in sewage treatment plants, the low odor threshold of TMA results in regular poor air quality com ...
Ensuring the quality and consistency of coffee is vitally important, as it is one of the world’s most consumed beverages. The taste of a cup of coffee depends upon a number of factors, including the coffee bean utilized, as well as the roasting, grounding and brewing process. In this application not ...
Although considered pharmacologically inert, pharmaceutical excipients have been shown to interact with active drug substances to affect the safety and efficacy of drug products.Therefore, there is an increasing awareness of the necessity to understanding interactions between excipients and the acti ...
The increasing quantity of recyclable materials is creating challenges for the recycling industry, as it is crucial that materials used both in the production of products and in the recycling process be consistent and free of impurities and contaminants. In this application note, a method for the an ...
Bromoethane (EtBr) occurs both naturally and anthropogenically, and is widely used as a broad-spectrum pesticide in grain storage fumigation to prevent fungi and weed production, or control insect and rodent populations in storage facilities. Owing to potential health risks when inhaled or consumed, ...
Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partially halogenated paraffin hydrocarbons. CFCs, in the form of polyether polyol mixtures, have been widely used as blowing agents in the manufacture of rigid polyurethane foams (PU) used as insulation products. Owing to ...
Malodor pollution in water has emerged as an increasingly worrisome consequence of continued worldwide urbanization and industrialization. Volatile organic sulfur compounds (VOSCs), such as dimethyl disulfide (DMDS) and dimethyl trisulfide (DMTS), have been identified as a primary contributor to mal ...
Thymopentin (TP5), a 5-amino-acid polypeptide, is a safe and effective immunostimulant utilized in the treatment of a variety of immune disorders. Several residual solvents are used in the manufacture of TP5, including the "universal solvent" N,N-dimethylformamide (DMF), known for its high solubilit ...
The solvents in the inks used to print flexible packaging may represent a possible source of food contamination and therefore must be controlled for quality and consumer safety. For the determination of residual solvents from printed materials, it is highly recommended that an analytical method such ...
Volatile organic compounds (VOCs) are a series of compounds with high vapor pressure and boiling points from 50 to 250 degrees centigrade. These characteristics lead to the tendency for large numbers of molecules to evaporate, or volatilize, from their solid state into the air. VOCs are present in t ...
Epichlorohydrin, a raw material found in resins, can occur in drinking water at concentration which are hazardous to human health. The use of ephichlorohydrin is increasingly regulated. This article presents an analytical technique to determine the concentration of epichlorohydrin in the drinking wa ...
Need to ensure quality, safety and reliability of food packaging? This compendium of Application Notes will provide you with R&D and QA/QC insights from plastic food trays, to bags, films and canned goods. The compendium provides research data and experimental results for; mechanical durability test ...
This application note demonstrates the use of a new sample-introduction technology incorporated in TurboMatrix HS-110 Trap for U.S. EPA Method 8260B for analysis, identification and quantification of volatile organic compounds (VOCs) that have boiling points below 200 °C.
Beer is one of the most commonly consumed alcoholic beverages, and thorough and robust analysis of the raw materials used in the brewing process, as well as the finished product, is paramount to ensure consistent product quality and taste. There are a number of potential by-products and spillover pr ...
Today’s plastics are some of the most used materials on a global volume basis. Broadly integrated into today’s industrial and commercial lifestyles, they make a major, irreplaceable contribution to virtually every product category. In this compendium you will find a wide range of applications for po ...
Residual solvents are used in the manufacture of active pharmaceutical ingredients (APIs), excipients, or in preparation of drug products, and are not removed during the purification processes. Residual solvents are one of the three main impurities in pharmaceutical materials; the other two are orga ...
Residual solvents are used in the manufacture of active pharmaceutical ingredients (APIs), excipients, or in preparation of drug products and are not removed during the purification processes. Residual solvents are one of the three main impurities in pharmaceutical materials. Residual solvents do no ...
Although considered pharmacologically inert, pharmaceutical excipients have been shown to interact with active drug substances to affect the safety and efficacy of drug products. One of the areas of major concern is the potential chemical interaction between impurities in the excipient and the drug ...
This application note describes the automated HS-GC/NPD technique applied to the analysis of various type of rice samples. This method was successful for the determination of a key aroma compound, 2AP, in rice sample with different varieties. The method showed in this study is rapid, convenient and ...
Ethylene oxide (EO) is a highly reactive, toxic and flammable gas which can act as an irritant to humans at room temperature. Since the 1950s, EO has been utilized for the sterilization of medical instruments that cannot be exposed to moisture or high temperatures, including those made of polymers, ...
To meet the growing demand for personal protective equipment following the beginning of the COVID-19 pandemic, face mask production from existing and new manufacturers increased drastically. Testing masks to confirm they do not contain chemical residues, such as volatile organic compounds (VOCs), th ...
ASTM International publishes a number of different methods for the determination of volatile compounds in water-based coatings. Method D3960 is a gravimetric technique where a sample of known weight is baked under specific conditions; the % weight of volatile organic compounds (VOCs) is calculated f ...
Journal of Chromatographic Science - A new analytical method for the determination of halogenated and aromatic volatile organic compounds in groundwater, mineral water, and drinking water at concentrations ranging between 1–10000 ng/L is developed..
The development of methodology to measure VOCs at low levels using GC-MS coupled with Headspace Trap sample introduction is described here. The methodology is based on U.S. EPA Method 8260B.
Whether your lab is well established or just starting up, having a single-source partner who can offer turnkey solutions that meet the current regulations is essential to a successful business. For years, we’ve worked with government and contract cannabis laboratories to develop industry-leading met ...
Monitoring the consistency and quality in soft drinks is essential to ensure a positive brand image and a loyal customer base. Our full portfolio of chromatography solutions, including LC, GC and GC/MS, enables you to meet – and even exceed – your quality control goals with rapid, intuitive, and acc ...
Increasing demands for efficiency, productivity, data quality, and profitability pose ongoing challenges for lubricant testing labs, like yours. Whether you need to achieve quick turnaround times, minimize downtime, or maximize lab efficiencies, you can rely on PerkinElmer for a comprehensive set of ...
Headspace gas chromatography offers an efficient sample-preparation technique that can save both time and money in the analysis of VOCs in a number of matrices. Headspace sampling is a separation technique which allows for the extraction of headspace vapor from a sealed sample, with subsequent injec ...
Food-packaging material is typically manufactured as a thin film and coated with inks which usually contain multiple, harmful, volatile organics.
This field application report describes the use of a TurboMatrix™ HS-110 Trap and Clarus® 500 GC/MS optimized for low-level determination of fuel oxygenates by U.S. Environmental Protection Agency Method 8260B using the new headspace-trap technology.
2,4,6-trichloroanisole (TCA) is found in the cork used to seal glass wine bottles. The determination of TCA in wine is necessary due to the extremely low level of sensory perception for this compound. The literature reports taste thresholds to be between 4 and 10 parts per trillion (ppt) in white wi ...
Increasing demands for efficiency, productivity, data quality, and profitability pose ongoing challenges for lubricant testing laboratories, like yours, performing new lubricant or in-service oil analyses. Whether you need to achieve quick turnaround times, minimize downtime, or maximize lab efficie ...
Consumables reference guide for the TurboMatrix Headspace. TurboMatrix Headspace and high-sensitivity Headspace Trap samplers provide unparalleled precision and ease of use for numerous GC or GC/MS volatile-analysis applications. The system can manage up to 12 samples simultaneously, ensuring that t ...
This poster lays out our whole material characterization range for the analysis of polymers and plastics. Find ideal techniques and instruments at each stage in the polymer manufacturing process: Resin Development - Resin Manufacture - Compound Development - Compound Manufacture - Product Forming - ...
Product Certificate for the TurboMatrix Headspace HS110/HS16/HS40
This document is intended to provide the newcomer to headspace sampling with a concise summary of the theory and principles of this exciting technique. Enough information is included here for the user to understand the basic concepts and relationships in HS sampling to apply during method developmen ...
This webinar examines the methodology and benefits of passive sampling for monitoring volatile organic compounds in air. EPA Method 325 will be used as an example to demonstrate how passive monitoring is an accurate, reliable and easy way to collect air
