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.
false falseThis 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
无论您的实验室已经稳住根基还是刚刚起步，拥有一个能够提供符合当前法规交钥匙解决方案的单一来源合作伙伴，对于成功的业务至关重要。多年来，我们一直与政府和合同大麻实验室合作，开发行业领先的方法、技术和超高投资回报。我们帮助推动分析标准，并致力于确保您的实验室具有最大的正常运行时间。了解我们用于大麻分析的各种测试方法和应用，让我们与您一起建立一个高效的工作流程，这样您就可以专注于发展您的业务和品牌。
对效率、产能、数据质量和利益率的不断需求，为润滑油检测实验室带来了持续的挑战，正如您所面临的那样。无论您想快速实现周转、最大限度地减少停机时间，还是最大化实验室效率，您都可通过PerkinElmer提供的一套全面、简单易用，且经验证的测试解决方案，来帮助您在记录时间内，获得准确的结果。详细了解我们的解决方案。
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 ...
Product Certificate for the TurboMatrix Headspace HS110/HS16/HS40
本应用说明描述了采用自动HS-GC/NPD技术分析不同类型大米样品。该方法成功地用于不同品种大米样品中关键香气成分2AP的测定。该方法快速、简便、样品制备量少，是大米香气分析的理想分析工具。
挥发性有机化合物（VOCs）是一系列具有高蒸气压的化合物，沸点在50至250摄氏度不等。这一特性使得大量分子倾向于从固态，蒸发或挥发为气态，融入空气。环境中的VOCs来源于多种渠道，包括人为和自然发生。在土壤中，VOCs主要来源于排放的工业和生活污水、石油泄漏和化学溶剂泄漏。定性和定量分析、监测土壤中的VOC污染至关重要，以确保减轻因VOC泄露而对健康造成的潜在负面影响。本研究中使用了Perkinelmer Clarus® GC/FID和Turbomatrix™ HS-40调查了土壤基质中的37种VOC
本文说明了PerkinElmer Clarus 600气质联用仪和TurboMatrix 40位捕集阱顶空进样器符合美国EPA8260B标准方法的严格要求，这包括了最低的检出限和精度的要求，同时捕集阱顶空提供了容易使用、样品之间没有交叉污染的优点。
残留于制造药物活性成分 (APIs)、赋形剂或药品制剂中的溶剂，在净化过程中无法去除。残留溶剂是医药材料中的三大杂质之一；另外两种是有机物和无机杂质。残留溶剂不具备任何疗效，应尽量去除以满足国际协调会议 (ICH) 准则对药品质量的要求——这是把控质量，和药性物质、赋形剂或药品的纯度的标准之一。
本文介绍了如何通过压力平衡顶空进样品和GC-FID分析，对三类残留溶剂进行分析。除了讨论仪器技术之外，还研究了稀释剂的选择；整个过程中将用到两种稀释剂。
咖啡是一种广受欢迎的饮料，在世界上大部分地区是交易量最大的农产品之一。尽管咖啡的起源可以追溯到一千年前的埃塞俄比亚，而它作为一种饮料的流行真正开始于17世纪初的中东地区。
塑料是当今全球使用量最多的材料之一。它们已广泛融入现代工业和商业生活方式，几乎对每类产品都做出了不可替代的重大贡献。
您将在本纲要中了解聚合物、塑料、橡胶和先进材料的广泛应用，以及这些应用如何简化您的工作并提升效率。
丁基羟基甲苯（BHT）是一种常用的食品添加剂，用来防止食物变质。人们担心长期食用BHT可能会有潜在的健康风险。由于食品质量和安全原因，需要对BHT进行分析。本应用说明展示了一种快速、简便的分析技术，通过顶空捕集阱-GC/MS法测定食品中BHT的含量。
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.
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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, ...
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, ...
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 ...
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 ...
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 ...
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 ...
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 ...
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.
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..
聚合物市场充斥着大量工业产品制造商，有着多种不同的处理工艺，但仍面临着类似的挑战。 如为了实现产品高质量并降低成本，在竞争中领先一步，他们面临着越来越大的压力。
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.
Food-packaging material is typically manufactured as a thin film and coated with inks which usually contain multiple, harmful, volatile organics.
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 ...
