Evaluation of Non-Linear FPD Response

Ševčı́k, Jiřı́

doi:10.1080/03067318308071587

Cited by 2 publications

(1 citation statement)

References 31 publications

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“…Chemical interference comes from high-temperature flames (≥3000 C) that ionize some metal atoms, which have distinct emission spectra compared to excited atoms. [53][54][55] The response of an FPD is compound dependent and is severely quenched by hydrocarbons and viscous chemicals like sucrose. [53,56,57] To minimize hydrocarbon quenching, quartz tube multiple flame photometric detectors (mFPD) have been developed.…”

Section: Photoionization Detector (Pid)mentioning

confidence: 99%

Experimental methods in chemical engineering: Gas chromatography—GC

et al. 2022

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Gas chromatography (GC) separates volatile and semi‐volatile liquids and gases based on their affinity for a stationary phase, either a thin liquid or a polymer layer on a solid. A gaseous mobile phase carries the volatile compounds from an injection port to a column with the stationary phase and then to an amdetector. The most common detectors are based on mass spectrometry (MS), thermal conductivity, and flame ionization. A furnace houses the columns and maintains or ramps temperatures to increase the separation efficiency—reduce run time or increase peak separation (resolution). The analyst chooses the chemistry of the stationary phase and the physical structure of the columns based on the polarity and functional groups of the solute. Packed columns tolerate impurities better than capillary columns that have a greater separating power and bleed the functional groups less. Efficiency is best when the sample polarity matches the column polarity. High temperatures and contamination cause columns to bleed the active components, which reduces the resolution but might also introduce ghost peaks to the chromatogram. The Web of Science assigned 15 000 articles to chemical engineering that mention GC and gas chromatography as keywords. Since 2017, it has indexed close to 1000 new articles every year. A bibliometric analysis classifies these contributions into four clusters: (1) pyrolysis and biomass, (2) GC–MS and extraction, (3) lignin and aromatics, and (4) decomposition and kinetics.

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Section: Photoionization Detector (Pid)mentioning

confidence: 99%

Experimental methods in chemical engineering: Gas chromatography—GC

et al. 2022

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Analysis of Low-Concentration-Level Gaseous Sulfur Compounds in the Atmosphere

Goldan

1990

Monitoring Methods for Toxics in the Atmosphere

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Intentional sulfur doping of the flame photometric detector results in a quasilinear response with a linear dynamic range of ∼100, a significantly reduced detection limit of ∼3 pg of sulfur, and a graphic display of interferences caused by response quenching. The use of Teflon for all sample lines and valves is shown to result in significantly smaller analyte losses for several important volatile sulfur species including SO2, CH3SCH3 [dimethyl sulfide (DMS)], and H2S. Ozone interference is shown to be a major problem in the quantitation of ambient levels of DMS using both solid sorbant and cryogenic enrichment techniques. The relative merits of several ozone removal procedures are discussed.

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Evaluation of Non-Linear FPD Response

Cited by 2 publications

References 31 publications

Experimental methods in chemical engineering: Gas chromatography—GC

Experimental methods in chemical engineering: Gas chromatography—GC

Analysis of Low-Concentration-Level Gaseous Sulfur Compounds in the Atmosphere

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