Featured Articles

Analysis of Organic Compounds in Water Using Unique Concentration–Injection Techniques for Portable GC–MS

In this study, a simple method was used for extraction and concentration of trace organic compounds in water, followed by injection using a coiled wire filament and GC–MS analysis. Common semivolatile organic compound contaminants at low parts-per-billion levels were detected in less than 10 min. read more

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Direct Enantiomer-Selective Mass Spectrometry of Chiral Mixtures by Mass-Selected Photoelectron Circular Dichroism

Simultaneous, enantiomer-specific identification of chiral molecules in multicomponent mixtures is extremely challenging. With mass-selected photoelectron circular dichroism (MS-PECD) using an electron–ion coincidence imaging spectrometer, a compound can be identified as chiral without the need for any prior enantiomeric separation or enantiomer-selective complexation. read more

The Application of Computational Chemistry to Problems in Mass Spectrometry

With computational chemistry, chemists can now study chemical phenomena by performing computationally intense calculations on computers rather than examining reactions and compounds experimentally. This is especially attractive when the laboratory experiments are time consuming, costly, dangerous, or difficult. Modern computational chemistry tools are capable of determining molecular structures, molecular spectra, and energetics, and of elucidating reaction pathways and chemical reaction products. read more