• Detect low sulfur or phosphorus concentrations
• Detects sulfur compounds to 200 ppb, phosphorus compounds down to 10 ppb
• Use the FPD/FID for simultaneous hydrocarbon speciation
• Valve or on-column injections
• Many applications: H₂S in natural gas, Total Reduced Sulfur (TRS) analysis, mercaptans, and more

SRI's Rental Sulfur and Phosphorus GC comes equipped with a Flame Photometric Detector/Flame Ionization Detector (FPD/FID) and a room temperature sulfur-inert sample loop. The FPD detector can detect sulfur compounds such as H2S or SO2 down to about 200 ppb and phosphorus compounds to 10 ppb. While not 100% selective, the FPD is 100,000 times more sensitive to sulfur and phosphorus compounds than hydrocarbons. The phosphorus response is linear, and the sulfur response is exponential (twice the sulfur yields four times the peak area). The gas chromatograph also comes with a 60-meter thick film capillary column which can tolerate the higher temperatures sometimes needed for sulfur and phosphorus analyses. 

The FID collector electrode and electrometer will detect the hydrocarbon peaks at the same time the FPD is responding to the sulfur phosphorus compounds. Users can easily optimize the sulfur-phosphorus response versus hydrocarbons response simply by adjusting the hydrogen/air mixture with the included EPc gas controls. 

The chromatogram at left shows the FPD response to 10 ppm of hydrogen sulfide (H₂S). 

The instrument is customizible/modifiable by our expert technicians upon request/need. Please call (310) 214-5092 to discuss your specific application/analysis. 

8610-6555 FPD/FID Sulfur and Phosphorus GC System $ ________

Monthly rental fee: $________
Daily rental fee ( minimum of 10 days ): $ ____ per day
1/2 of rental fees paid on time can be used towards purchase of the used/rental instrument and/or a new unit. Call (310) 214-5092 for more information or for a quote.