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Selective Detectors for Gas Chromatography

Selective Detectors for Gas Chromatography

Selective Detectors for Gas Chromatography

Product catalog summary
Introduction to Selective Detectors for Gas Chromatography
Gas chromatography (GC) coupled with mass spectrometry (MS) is a robust analytical technique. However, using selective GC detectors alone or alongside MS detectors offers significant advantages for many applications. While MS is a universal, nonselective detector, selective GC detectors enhance chromatographic performance by accurately measuring trace levels of target compounds amidst higher concentration compounds or matrix interferences.
Enhancing Chromatographic Performance
Selective GC detectors provide precise retention time marking, improving MS library matching and peak identification. For example, in essential oils, co-elution of interferences can obscure compounds responsible for characteristic aromas. A sulfur mode PFPD chromatogram can help identify sulfur compounds contributing to the fragrance profile.
Applications of Selective GC Detectors
OI Analytical’s selective GC detectors are ideal for challenging analytical applications, such as detecting sulfur species in petrochemicals, trace levels of organochlorine and organophosphorus pesticides in food, and sulfur and aromatic compounds in flavor and fragrance extracts. These detectors are compatible with GC instruments from manufacturers like Agilent, Bruker, Shimadzu, Thermo, and PerkinElmer.
Types of Selective GC Detectors
  • PFPD – Pulsed Flame Photometric Detector: Excels at detecting sulfur and phosphorus compounds and can detect 26 other elements.
  • XSDTM – Halogen Specific Detector: Designed for detecting halogenated compounds such as pesticides, THMs, and PCBs.
  • Tandem GC Detectors: Combine a photoionization detector (PID) with an FID or another selective detector, providing two simultaneous chromatograms from a single run.
  • ELCD – Electrolytic Conductivity Detector: High sensitivity measurement of halogenated compounds, used in tandem with PID for measuring chlorinated and aromatic VOCs in water samples as per USEPA methods.
Conclusion
Selective GC detectors offer enhanced performance and specificity for complex analytical tasks, making them invaluable in various industrial and research applications.
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Catalog excerpts

Selective Detectors for Gas Chromatography-1

O-I-Analytical 5 a xylem brand

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Selective Detectors for Gas Chromatography-2

Enhancing Chromatographic While gas chromatography coupled with mass spectrometry (GC-MS) is a powerful analytical technique, there are significant advantages to using selective GC detectors alone or in tandem with a MS detector for many applications. A mass spectrometer is a universal, nonselective detector that yields total ion chromatograms containing a large number of compounds. Post-run mass spectra library searching is required to identify target compounds. Selective GC detectors enhance chromatographic performance by measuring trace levels of target compounds in the presence of higher...

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Selective Detectors for Gas Chromatography-3

Selective GC Detectors for Challenging Analytical Applications OI Analytical's selective GC detectors provide solutions to challenging analytical applications. Detecting sulfur species in petrochemicals, trace levels of organochlorine and organophosphorus pesticides in food samples, or sulfur and aromatic compounds in flavor and fragrance extracts are prime examples of applications that benefit from the use of selective GC detectors. Compatible detectors are available for current models of GC instruments manufactured by Agilent, Bruker, Shimadzu, Thermo, and PerkinElmer.

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Selective Detectors for Gas Chromatography-4

OTAnalytical a xylem brand Selective GC Detectors PFPD - Pulsed Flame Photometric Detector The PFPD excels at selective detection of sulfur and phosphorus compounds, and can be configured to detect 26 other elements. XSDTM - Halogen Specific Detector The XSD halogen specific detector is designed for selective detection of halogenated compounds such as pesticides, THMs, and PCBs. Tandem GC Detectors OI Analytical's patented* tandem GC detectors combine a photoionization detector (PID) with an FID or second selective detector providing two simultaneous chromatograms from a single run. The PID selectively...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.