3-MCPD and Glycidol and especially their fatty acid esters are process contaminants that are formed, for example, when edible oils and fats are refined. At least some of the above-mentioned substances are classified as potential human carcinogens,...

Water quality is of the utmost importance and recently the importance of analyzing water for emerging contaminants has been brought to light. Among the emerging compounds being analyzed are perfluorinated chemicals (PFCs) which have been found to be persistent environmental contaminants derived from various industries.

Well known for their characteristic fl avor and fragrance characteristics, terpenes are contained in the derived essential oils of cannabis. Analysis of cannabis for terpene concentrations can be applied to strain identifi cation, referred to as fi ngerprinting, and for concentration accuracy when applied to medicinal treatments. Terpenes have high vapor pressures, are extremely volatile and thus are an excellent candidate for static headspace GC analysis. In this work, headspace SPME (HS-SPME) was combined with GC/MS for the quantitative analysis of several selected terpenes in cannabis.

An automated analysis system consisting of a dynamic headspace (DHS) system coupled with thermal desorption-Gas Chromatography/Mass Spectrometry (TD-GC/MS) was used for fully automated micro-scale chamber material emission analysis of Spray Polyurethane Foam (SPF).

The manual transfer of liquid standards and solutions is usually part of the daily activities throughout the analytical laboratory. For example, liquids must be transferred when creating calibration standard samples, pipetting solvents, and combining liquids. The accurate and precise transfer of liquids can be critical to the analytical results. Liquids with low boiling points or high viscosities pose several challenges to achieving accurate and precise delivery of desired volumes. Verifi cation of the volumes of liquids transferred would help verify the quality of the analytical procedure andensure the high quality of the resulting data.

The influence of variations in desorption temperature, desorption flow and sample preparation on VDA 278 analysis method [1] robustness and reproducibility is studied using a wide variety of samples from automobile interior materials: polypropylene (PP) granulate, polyurethane (PU) foam, leather, Duroplastic plastics and paint.

Headspace gas chromatography (HS-GC) is frequently used for the analysis of aroma compounds in food due to its practical advantages of simplicity, amenability to full automation, less contamination from non-volatile constituents and elimination or reduction of solvent use.

Rubber particles, sometimes derived from used tires, are used on artificial turf athletic fields, on playgrounds and as mulch. These particles can off-gas and leach compounds into the environment and may present a contact or inhalation hazard. Recent news reports in the US and Europe indicate...

Aroma Offi ce 2D (Gerstel K.K.) is an integrated software approach for simultaneous processing of both retention index (RI) and mass spectral (MS) data for rapid and improved identifi cation of fl avor compounds. The program can be integrated into Agilent Chemstation Software and searches are performed using CAS numbers...

One of the most important aspects of reducing pesticide exposure is monitoring of pesticide residues in foods. A number of analytical methods have been developed, many of them based on traditional liquid-liquid extraction in combination with GC-MS or LC-MS.