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  • Application Brief

    Determination of BTEX in Industrial Vinyl Acetate

    Vinyl acetate, a colorless, organic compound is an important raw material for the chemical industry. It’s utilized for synthesis of polyvinyl acetate, used in paints and coatings and can be synthesized by the addition reaction of acetic acid and acetylene or the direct oxidation reaction of ethylene and acetic acid by oxygen. The purity of vinyl acetate influences the yield of the target product and high-purity raw materials can reduce the occurrence of unwanted side reactions. It is necessary to determine the organic impurities in vinyl acetate for industrial uses like for the petrochemicals industry. This study describes a simple, efficient and reliable method for determining benzene, toluene, ethylbenzene, o-xylene, m-xylene, and p-xylene (BTEX) in industrial vinyl acetate for a petrochemical customer utilizing the PerkinElmer Clarus® SQ 8 GC/MS.

  • Application Note

    Meeting EU REACH Requirements using Chemical Ionization Gas Chromatography/ Mass Spectrometry

    The EU Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) regulation was adopted in 2006 with the aim of protecting human and environmental health, along with the competitiveness of the chemical industry within the European Economic Area. The regulation places responsibility for chemical product evaluation and compliance on manufactures and importers, as opposed to the government.

    In this application note, a method utilizing a PerkinElmer Clarus® GC/MS for the analysis of 4,4’-Methylenebis(2,6-di-tert-butylphenol), also known as Ethyl 702, is described. The method fulfills the REACH requirement by using the ammonia adduct ion to confirm the compound molecular weight. Improved analytical results were obtained using a mass flow control (MFC) mechanism for the regulation of the CI reagent gas flow.

  • Brochure

    Cannabis Testing Solutions Brochure

    Analyzing cannabis can be challenging. Setting up a laboratory, developing methods to ensure maximum throughput of samples, generating client reports, and preserving data integrity. More importantly, as state and country rules and regulations evolve, cannabis labs need instrumentation and support that can meet new and stricter demands. 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 methods, technology, and exceptional return on investment. We help drive analytical standards and commit to ensuring your laboratory has maximum uptime. Learn about our various testing methods and applications for cannabis analyses. Let us work with you to build an efficient workflow, so you can focus on growing your business and brand.

  • Application Note

    Analysis of pollutants in groundwater as per European Union Directives

    The European Union directives assist the member states to define the activities to be programmed and the objectives to be achieved. In this framework, the chemical analysis of the water system is the main activity to preserve the healthiness of the waterways through monitoring and detection of substances that are harmful to the environment and to the health of citizens.

    This application shows this framework could be achieved with GC/MS analysis.

  • Application Note

    Determination of 2,4,6-Trichlorophenol in water by Derivatization in headspace and GC/MS

    Chlorophenols are by-products of the drinking water purification process and are also widely used as wood preservatives, herbicides and pesticides. In this study, the derivatization and extraction happened in the headspace vials during the vial thermostatting step. The derivatization reaction is affected by temperature and time, therefore the thermostat time and oven temperature of the headspace sampler were investigated for optimum derivitization/extraction conditions.

  • Application Note

    Method 8260C by Purge and Trap Gas Chromatography Mass Spectrometry using the Clarus SQ 8

    This method outlines the analysis of volatile organic compounds in a variety of solid waste matrices including various air sampling trapping media, ground and surface water, soils, and sediments among others. The method requires not only demonstration of laboratory sample preparation and handling competence but instrument performance as well. The study presented here demonstrates the PerkinElmer® Clarus® SQ 8 GC/MS with purge and trap sample introduction both meets and exceeds the performance criteria set out in method 8260C and describes the analytical results and instrumental methodology.

  • Application Note

    Coffee Characterization Using Clarus SQ 8 GC/MS, TurboMatrix HS Trap and GC SNFR Olfactory Port

    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 note, a method for the characterization of coffee aroma is detailed, utilizing a Clarus® SW 8 GC/MS with an FID detector, TurboMatrix Headspace Trap sampler and a SNFR GC olfactory port to record the sensory perception of each individual aroma component.

  • Flyer

    One-Stop Solution for EPA Method 325

    As petroleum and refining experts and suppliers, you are a vital asset to the nation. So why not focus on what you do best and allow a world-class leader in environmental analysis to handle the details on your Method 325 response? Because of Method 325’s complex requirements for continuous passive air sampling, ongoing laboratory analysis, and detailed reporting to establish a traceable audit trail, you can turn to PerkinElmer, a global leader for industrial solutions.

  • Application Note

    Soil Gas Analysis: The Solution for Extending the Hydrocarbon Range of TO-17

    The sampling and analysis of soil gas poses several unique challenges when compared to indoor or ambient air monitoring. For instance, soil gas often has higher moisture content and possibly a broader range of compounds. Because of the confined space, typical sites can be very contaminated. Thus sorbent tubes and the analytical system need to deal with this while providing accurate data at the low detection limits required for the toxic regulated compounds. PerkinElmer, with assistance from CARO Analytical Services, has designed a new thermal desorption tube that successfully accommodates the challenges of soil gas sampling and analysis while outperforming the regulatory criteria a detection limits, accuracy and analyte range.

  • Application Note

    Improved Sensitivity and Dynamic Range Using the Clarus SQ8 GC/MS System for EPA Method 8270D

    This analysis focuses on the detection of trace level semi-volatile organic compounds in extracts from solid waste matrices, soils, air sampling media and water samples. The method lists over 200 compounds however a majority of laboratories target between 60 and 90 for most analyses. The study presented here demonstrates the PerkinElmer® Clarus® SQ 8 GC/MS, not only meets the method requirements but provides users flexibility to satisfy their individual productivity demands. An extended calibration range is presented as are the advantages of the Clarifi™ detector.

  • Application Note

    Determination of Volatile Organic Compounds in Soils

    Volatile organic compounds (VOCs) are a series of compounds with boiling points from 50 to 250 degrees centigrade and are widely used as industrial chemicals/ solvents. Low concentrations of VOCs can have a significant impact on human health, as many are regarded as highly toxic, refractory and carcinogenic. The detection and determination of VOCs in the environment is of the upmost importance for both human and environmental health.

  • Application Note

    Determination of Migration of Phthalate and Polycyclic Aromatic Hydrocarbon from Food Contact Plastic Bags

    Plastic bags are widely used in food packaging due to cost and flexibility, for example breakfast items such as hot steamed buns, oil cake and soybean milk are typically packaged in plastic. Leftovers, supermarket cooked food and even beer, are also packaged with plastic bags. Plastic packaging is very convenient but plasticizers and other additives dissolve and migrate into food during processing, heating and packaging, which can result in food contamination and permanent damage to human health and the environment.

    This application note demonstrates a method for the determination of 16 phthalates (PAEs) and 16 polycyclic aromatic hydrocarbons (PAHs) leaching from plastic bags using the PerkinElmer Clarus® SQ 8 GC/MS with electron ionization (EI) source. The method is based on the Chinese National Standards GB 31604.1-2015, GB 31604.30-2016 and GB 5009.265-2016. 1-3 Toluene is used as a solvent to extract the target compounds from the food simulants.

  • Application Note

    The Analysis of VOCs in KN95 and Surgical Masks by Headspace Trap GC/MS

    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), that may off-gas during normal wear is an integral part of this quality control process. This application note presents a method based on ISO-18562 and ISO-10093 to detect and quantify VOCs in face masks. Utilizing a solvent-free headspace extraction and GC/MS analysis, this method is ideal for PPE producers seeking a quick and precise method to ensure safety and quality standards are met during the production process.

  • Application Note

    Determination of 10 Pyrethroid Pesticides in Soil by Soxhlet Extraction-GC/MS

    Pyrethroids are a type of synthetic insecticides that work by attacking arthropod insects’ nervous system, with a knockdown and cidal effect that is up to 100 times higher than that of older generation insecticides, such as organochlorine (OC), organophosphorous (OP) and carbamate pesticides. Pyrethroid pesticides are used widely in agriculture, public health and grain storage, and have become one of the most widely used pesticides. Recent studies indicate that pyrethroid pesticides can bioaccumulate in some species, and that prolonged exposure may result in chronic disease, even with relatively low-dose exposure. As such, a number of countries have developed regulatory guidelines associated with safe levels of pyrethroid pesticide residues in the environment.

    In this study, a Soxhlet extraction technique is used to extract target 10 pyrethroid pesticides from soil samples, with subsequent analysis using a PerkinElmer Clarus® SQ 8 GC/MS system.

  • Application Note

    The determination of low level benzene, toluene, ethyl benzene and xylenes (BTEX) in Drinking Water by Headspace Trap GC/MS

    BTEX are regulated toxic compounds while benzene is also an EPA target carcinogen. The investigation of these compounds, especially in drinking water at low levels, is critical to protect public health. This application note focuses on exceeding the current EPA detection limit requirement for BTEX while meeting and/or exceeding all other criteria in EPA method 524.2 for these analytes.

  • Application Note

    Determination of Nine Carbonates in Lithium Ion Battery Electrolyte by GC/MS

    The composition and content of carbonates, such as dimethyl carbonate and ethyl methyl carbonate, in electrolytic solution plays an important role in the development and quality control of lithium ion batteries. Monitoring the composition and ratio of carbonates has important implications for energy density, cycle life and the safety of lithium ion batteries.

    Download this application note for a reliable methodology for the determination of nine carbonates found in lithium ion battery electrolytes. Utilizing a Clarus® SQ 8 GC/MS with EI source, this method offers precise results with the recovery, linearity and detection limits required by users in the lithium ion battery industry.

  • Application Note

    Analysis of Volatile Organic Compounds (VOCs) in Air Using US EPA Method TO-17

    Optimized methods are needed for the analysis of toxic compounds in air to understand the impact to human health. People breathe approximately 20,000 liters of air a day so this concern is significant. EPA Method TO-17 is used to determine toxic compounds in air after they have been collected onto sorbent tubes. This application note demonstrates that the PerkinElmer TurboMatrix™ Thermal Desorber and the PerkinElmer Clarus® SQ 8 GC/MS will meet and exceed the criteria set forth in EPA method TO-17. Detailed instrument method parameters are presented, with precision, recovery, linearity and detection limit results.

  • Brochure

    Outdoor Air Interactive Brochure

    Our outdoor air monitoring solutions enable fast, accurate, reliable - and compliant - volatile and semivolatile organic compound analysis, including applications for 1.) Ozone precursors, 2.) Air toxics, 3.) Fenceline monitoring, 4.) Soil vapor intrusion and 5.) PM2.5 and particulates. Plus, we’ve got the services and support and a broad range of consumables and accessories to increase your throughput and quality of results.

  • Application Note

    Fast, Quantitative Analysis of Residual Solvents in Cannabis Concentrates

    Compared to the more traditional cannabis flower, cannabis concentrate products, such as extracts, tinctures, edibles, waxes, and oils are becoming the most commonly used cannabis products that are legally manufactured for both medicinal and recreational purposes. Most concentrates are extracted using a solvent such as supercritical CO2, butane, propane, other hydrocarbons, water, or alcohol. These solvents are used to extract out the cannabinoids and terpenes from the plant material. In some cases, the solvent and impurities from the solvent remain in the extracted material. These are called residual solvents and are the byproducts of the extraction process. In some cases, these impurities can be toxic, which is why residual solvent analysis is a critical element of cannabis testing. The method of choice for measuring residual solvents is headspace (HS) gas chromatography (GC) coupled with mass spectrometry (MS) detection, so false positives are not reported. To further validate the performance of this method for the industry, The Emerald Test Proficiency Test (PT) for Potency was conducted. The Emerald Test™ is an Inter-Laboratory Comparison and Proficiency Test (ILC/PT) program for cannabis testing labs. The results from the PT inter-laboratory samples passed; therefore, the method meets inter-laboratory reproducibility and accuracy.

  • Application Note

    Identification of VOCs in In-Vehicle Interior

    Customer complaints of odors within a new car are rising with the increasing number of new car buyers. Although odors can be subjective, it is now well known that the new car smell is the result of chemicals emitted from the in-vehicle interior components such as the dashboard, interior panels, seat coverings, flooring materials, and so on. This application note describes a method for the automotive industry that provides a qualitative analysis and the olfactory character of each component using the TD-GC/MS-Olfactory Port.

  • Application Note

    Fast, Accurate, and Precise Terpene Testing of Cannabis Samples

    Like all botanicals and plants found in nature, cannabis also contains terpenes, which are the aromatic oils that give rise to the distinctive flavors and aromas found in cannabis varieties. There have been up to 140 different types of terpenes reported in cannabis, but multiple studies suggest that approximately 17 are the most common and can be used for examining their chemotype. The diverse palate of cannabis terpenes is impressive enough, but arguably their most fascinating characteristic is their ability to interact synergistically with other compounds in the plant, like cannabinoids. In the past few decades, a significant amount of work has been performed to understand the ‘entourage effect’, which scientists refer to as synergistic interaction between terpenes and cannabinoids in the human body. This effect is believed to magnify the therapeutic benefits of the plant’s individual components - so that the medicinal impact of the whole plant is greater than the sum of its parts quantifying which terpenes are present is an important aspect of understanding the unique effects of cannabis for both medicinal and recreational users. The PerkinElmer HS-GC/MS solution for the determination of terpenes is fast and robust providing the laboratory with greater sample throughput, instrument uptime, essentially a maintenance free system, and enhanced profits. Additionally, this procedure is a turnkey solution; therefore, all acquisition and processing methods and standard operating procedures (SOP) will be provided upon installation of the system. To further validate the performance of this method for the industry, The Emerald Test Proficiency Test (PT) for Potency was conducted. The Emerald Test™ is an Inter-Laboratory Comparison and Proficiency Test (ILC/PT) program for cannabis testing labs. The results from the PT inter-laboratory samples passed; therefore, the method meets inter-laboratory reproducibility and accuracy.