Albert Robbat

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A new high temperature transfer line, membrane inlet probe (HTTL-MIP) coupled to a photoionization detector (PID) and gas chromatograph/mass spectrometer (GC/MS) was used to rapidly profile and speciate polycyclic aromatic hydrocarbons (PAH) in the subsurface. PID signals were in agreement with GC/MS results. Correlation coefficients of 0.92 and 0.99 were(More)
Quantitative information of alkylated PAH is frequently used in forensic investigations to characterize petroleum releases and fate in the environment. Interference from a complex matrix often obviates target compound quantitation. Using single ion SIM or a single mass spectral pattern to analyze these homologs should result in either over- or(More)
Research has focused on the development of a new set of mathematical algorithms, encoded in C(++), when combined with a thermal desorption sample introduction system provides quantitative analysis of a wide mixture of organic compounds in under 10 min by gas chromatography/mass spectrometry. The overall goal is to condense the time of analysis, including(More)
A new data analysis software system (Ion Fingerprint DetectionTM) has been developed to provide fast mass spectral data analysis. Methods have been developed that can provide screening to quantitative gas chromatography/mass spectrometry (GC/MS) data in 30 s to minutes. Compound selectivity is provided through a unique set of algorithms rather than GC(More)
This article describes the collection and analysis of organic contaminants at depth without bringing soil to the surface. A thermal extraction cone penetrometer (TECP) probe was used to extract soil-bound semivolatile organics, transferring them to the surface for analysis by ultrafast gas chromatography/mass spectrometry (GC/MS). Findings showed that(More)
The composition of essential oils and their mixtures used to formulate gin is usually too complex to separate all sample components by standard capillary gas chromatography (GC). In particular, minor constituents that possess important organoleptic properties can be masked by co-elution with major sample components. A solution is provided that combines gas(More)
Climate change is impacting agro-ecosystems, crops, and farmer livelihoods in communities worldwide. While it is well understood that more frequent and intense climate events in many areas are resulting in a decline in crop yields, the impact on crop quality is less acknowledged, yet it is critical for food systems that benefit both farmers and consumers(More)
Electroreduction of heterotetranuclear complexes (~4-O)L~Cu4_~Ni~(H20)=C16 (x = 1-4, L = N,N-diethylnicotinamide) at a Pt electrode in dimethylsulfoxide leads to deposition of Cu-Ni alloys with codeposition of Cu(I) oxide, Ni(II) oxide, and Ni(II) hydroxide. The alloy deposition potential is invariant with complex stoichiometry. Alloy Ni composition,(More)
Investigators use C(1) to C(4) substituted polycyclic aromatic hydrocarbons (PAH) to assess ecological risk and to track fossil fuels and related pollutants in the environment. To quantify these compounds gas chromatography/mass spectrometry (GC/MS) is used. This work demonstrates single ion monitoring (SIM) or extraction (SIE) of full scan data produces(More)