There is growing concern that VOC emissions from materials used indoors in buildings should be monitored to ensure that building occupants are not exposed to potentially harmful chemicals. Monitoring can be absolute (determining, for example, emission rates in micrograms per square meter-hour),

Bisphenol A (BPA) is a widely produced chemical used as a precursor in the formation of plastics (polycarbonate) and coatings for food and beverage containers

The forensic community has experienced an increasing emergence of New Psychoactive Substances (NPSs) in recent years. The fi ve main classes of NPSs include the synthetic cannabinoid compounds, stimulants such as the derivatives of cathinone, opioids such as fentanyl, psychedelics, and non-pharmaceutical benzodiazepines. The automated extraction and determination of other classes of NPS compounds using the GERSTEL MultiPurpose Sampler (MPS) roboticPRO have been previously developed and discussed.

Mineral oil hydrocarbon (MOH) contaminants can be found in foods such as cereals, baked goods, fats and oils, coffee and many more. MOH can be introduced through process aids, additives, and machine- and lubricating oils used during food processing. Packaging such as jute bags used to store and transport foods, recycled cardboard, and printing inks are other major sources of MOH contamination. MOH are separated into Mineral Oil Saturated Hydrocarbons (MOSH) and Mineral Oil Aromatic Hydrocarbons (MOAH). Some MOAH are known carcinogens and MOSH are known to accumulate in human body tissue. Subsequently, food products should be analyzed and monitored for their presence.

Aroma Office 2D (Gerstel K.K.) is an integrated software approach for simultaneous processing of retention index (RI) and mass spectra (MS) for rapid and improved identification of flavor/aroma compounds. The previous Ver. 6 (and earlier) of this software ran on the Agilent ChemStation platform and the current Ver. 7 upgrades to integration into MassHunter Unknowns Analysis. After MassHunter deconvolution and mass spectral library search, the data is processed by Aroma Office with cross searching of deconvoluted library search results and RI values. The Aroma Search module allows an entire Total Ion Chromatogram (TIC) to be processed automatically.

1,4-Dioxane is a chemical contaminant formed in trace amounts as a byproduct during the manufacturing process of detergents, foaming agents, emulsifiers and some solvents, which are widely used ingredients of commercial products such as soaps, detergents, shampoos, cosmetics, and cleaning agents. This has led to detectable levels of 1,4-dioxane in the final products resulting in consumer exposure. 1,4-Dioxane has been identified as a potential human carcinogen. A 2016 report by the Department of Health and Human Services lists 1,4-dioxane as reasonably anticipated to be a human carcinogen.

In this study, the GERSTEL PYRO was used for the pyrolysis of various materials that are relevant to forensic analysis applications, including paints, adhesives, and cosmetics. A GERSTEL MultiPurpose Sampler (MPS) was used in combination with GERSTEL PYRO and GERSTEL Cooled Injection System (CIS 4), enabling effi cient automation of the thermal extraction and pyrolysis of complex forensic materials. Fractionated and smart-ramped pyrolysis modes followed by gas chromatography mass spectrometry (GC-MS) analysis were used to determine important volatile additives and pyrolysates (from polymers) present in a diverse set of samples.

Preparation of calibration standards and quality control samples are critical tasks in chemical analysis. The accurate and precise transfer of liquid standards and solutions is critical for ensuring the validity of analytical results. Automating the accurate transfer of liquid standards and solutions helps to improve the quality of the analytical procedure while freeing the analyst from performing tedious and repetitive manual tasks

Gas Chromatography-Olfactometry (GC-O) is an essential technique in aroma analysis. Olfactory detection is often performed in parallel with GC detection, for example, using a mass spectrometer. To ensure that an Olfactory Detection Port (ODP) is installed properly and is in good working condition, a performance checkout procedure is required. An ODP checkout standard has therefore been developed and its application is discussed in this document.

enLiquid-liquid extractions are used to extract and concentrate analytes from aqueous matrices. This extraction technique is widely accepted as shown by its inclusion ...