Application Notes: Industrial

Using TD–GC×GC–TOF-MS for profiling of biomarkers in breath and data mining tools to uncover hidden compositional changes using automated untargeted workflows

TI data improves discovery workflows by reducing the frequency of false positives; finding significant class-based differences between GC & GC×GC chromatograms

The use of headspace sorptive extraction with GC×GC–TOF-MS to compare the volatile profiles of ground meat and plant-based substitutes

Learn how your lab can benefit from smarter GC‒MS instruments and workflows to discover more from your samples and deliver improved business outcomes

Using GC×GC–TOF-MS and tandem ionisation to identify trace additives in gasoline to automatically uncover differences between gasoline blends

Showing how the comprehensive data acquired using GC×GC–TOF-MS with tandem ionisation can uncover the subtle differences between brand and imitation fragrances

Synthetically derived food and beverage dye analysis to meet regulatory requirements aimed at reducing the risk of allergies, cancers, and attention deficits.

Here we present an innovative approach for the characterization of nanoplastic particles using centrifugal field-flow fractionation coupled with UV, multi angle light Scattering detection, and raman microscopy.

Synthetically derived food and beverage dye analysis to meet regulatory requirements aimed at reducing the risk of allergies, cancers, and attention deficits.

Production of ethanol from biological sources produces side products, specifically propanol and methanol among other ketones, fatty acids, and esters.

EPA Method 552.3 is approved for the monitoring of HAAs System configuration allows ID, quantification, and confirmation in one run Results exceeded EPA quality assurance requirements

Nitrogen was used as the carrier gas instead of helium Trace amounts of thiophene were easily measured SCD provided excellent sensitivity and selectivity

Shodex HILICpak VT-50 is suitable for the analysis of phosphorous-containing amino acids herbicids including glyphosate, glufosinate and their metabolites using ESI-MS detection.

Eliminating laborious sample preparation, field-flow fractionation greatly facilitates the absolute characterization of lignosulfonates by multi-angle light scattering.

Starch is used for a variety of industrial and nutritional purposes. Its functional properties are influenced by the ratio and molar masses of its macromolecular constituents, which vary with source, crop year, and climate.

Isocyanates are highly reactive, low molecular weight chemicals. They are widely used in the manufacture of flexible and rigid foams, fibers, coatings such as paints and varnishes, and elastomers.

OI Analytical

Current methods to measure worker exposure to chemicals generally involve collecting samples and sending them to a laboratory for analysis, which can take up to two weeks to obtain results. Tools that can turn samples into on-site information can provide data to make informed decisions when and where they are needed to protect workers.

The amount of benzene in gasoline is a concern because it is a known human carcinogen, and exposure to it has been linked to detrimental health effects. The challenge with the analysis lies in the complex composition of gasoline, which consists of hundreds of different compounds. Reformulated gasoline also contains additives to produce more complete combustion and subsequent lower emissions of harmful compounds.

During the manufacturing process of industrial gases, volatile oligomers of compressor fluids can enter the product stream. These impurities are typically within specification, but failure of a diaphragm or seal can spike the concentration in a fill batch and the industrial gas no longer meets product specifications. A screening method has been developed to extract, identify and quantitate chlorotrifluoroethylene-based impurities from the compressor fluid using a CUSTODION? solid phase microextraction (SPME) syringe and a TRIDION?-9 person-portable gas chromatograph–toroidal ion trap mass spectrometer (GC-TMS). The compounds were separated and detected rapidly in less than 5 min analysis time.

This technical bulletin details the separation of 11 closely related nitroaromatic compounds, namely RDX, HMX, Nitrobenzene, 2-Nitrotoluene, Tetryl, 2,6-Dinitrotoluene, 4-Nitrotoluene, 1,3-Dinitrobenzene, 2,4-Dinitrotoluene, 2-amino 4,6-dinitrotoluene, 1,3,5-Trinitrobenzene. Our customers have reported that similar separations on silica-based phases produce run times as long as 30 min. Here we report a method on ZirChrom?-CARB at a column temperature of 125 ?C in under 4 min.

Biofuels have emerged as an attractive alternative to fossil fuel. Biofuel refers to any fuel that is derived from biomass (typically, plant and animal waste). A common feedstock for bioethanol production is corn stover (leaves and stalks of maize plants left after harvesting). Corn stover processing involves acid treatment to release a mixture of water-soluble carbohydrates, followed by enzymatic reactions to convert the sugars to ethanol.

Natural gas and other gaseous fuels contain varying amounts and types of sulfur compounds which can be corrosive to equipment and can inhibit or destroy gas processing catalysts. Small amounts of sulfur odorants are added to natural gas and liquefied petroleum gases (LPGs) for safety purposes. Accurate measurement of sulfur species ensures proper process operation and odorant levels for public safety.

Natural gas and other gaseous fuels contain varying amounts and types of sulfur compounds which can be corrosive to equipment and can inhibit or destroy gas processing catalysts. Small amounts of sulfur odorants are added to natural gas and liquefied petroleum gases (LPGs) for safety purposes. Accurate measurement of sulfur species ensures proper process operation and odorant levels for public safety.

The isolation of α-Methylstyrene from the crude reaction mixture seems easy. However the reaction mixture contains some dimethyl sulfoxide and the oily wetting agent from the sodiumhydride.

Biodiesel fuels are part of a rapidly growing alternative fuel industry to replace gasoline with renewable, more efficient, and lower emission fuels (1).

Natural gas and other gaseous fuels contain varying amounts and types of sulfur compounds which can be corrosive to equipment and can inhibit or destroy gas processing catalysts.

An extension of ASTM D7169 is shown using new Zebron ZB-1XT SimDist metal GC columns.