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Otto Prohaska Science and Technology Group Otto.Prohaska@PerkinElmer

New Technology for Sulfur Detection. Otto Prohaska Science and Technology Group Otto.Prohaska@PerkinElmer.com. Analytical Instrument Manufacturer GC, GC/MS, HPLC ICP-OES, ICP-MS, AA UV/Vis, FTIR, FT Imaging Research new technologies

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Otto Prohaska Science and Technology Group Otto.Prohaska@PerkinElmer

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  1. New Technology for Sulfur Detection Otto Prohaska Science and Technology Group Otto.Prohaska@PerkinElmer.com

  2. Analytical Instrument Manufacturer GC, GC/MS, HPLC ICP-OES, ICP-MS, AA UV/Vis, FTIR, FT Imaging Research new technologies New instrument development for total and speciated sulfur monitoring New sulfur detection technology – patents filed PerkinElmer Instruments

  3. Resolution - 0.15 pgmS/s; sample used for the study: thiophene Response Time - PWHM: 0.95 sec Selectivity - versus HCs is > 106 Precision - < 3% for 10 runs Stability - drift < 5% per day Interferents - < 0.3% for nitrogen, phosphorous, chlorine compounds Linear Dynamic Range - 105(concentration range with linear response) Summary of Key Technical Results

  4. Thiophene Response with PKI and SCD Detectors Amount Injected 0.5 uL Concentration: 200 ppm Thiophene Split Ratio: 100:1 PWHM=1.2 s Signal/Noise = 5400 Peak Asymmetry factor at 5 %=1.3 Amount Injected 0.5 uL Concentration: 200 ppm Thiophene Split Ratio: 100:1 PWHM=1.4 s Signal/Noise = 4700 Peak Asymmetry factor at 5 % =1.22 200 600 500 SCD Signal(mV) PKI Detector Response 100 400 300 2.22 2.26 2.30 2.20 2.25 2.30 Time (min)

  5. Sulfur Compound Standard from Sievers: Results with PKI Detector 3 1 Dimethyl Sulfide 2 Ethyl Methyl Sulfide 3 Thiophene 4 Toluene Solvent PKI Detector Response 2 1 4 Time(min)

  6. 0 380 360 5 340 2 PKI Detector Response 3 320 1 6 7 8 4 300 280 2 4 6 8 10 12 Gasoline Sample 0 Unidentified Sulfur Compound 1 Thiophene 2 2-Methyl Thiophene 3 3-Methyl Thiophene 4 2-Ethyl Thiophene 5 Alkyl Thiophene 6 BenzoThiophene 7 Methyl Benzothiophene 8 Dimethyl Benzothiophene Time(min)

  7. Gasoline Response with PKI and SCD Detector 7 1 1 Thiophene 2 2-Methyl Thiophene 3 3-Methyl Thiophene 4 Alkyl Thiophene 5 Benzo-Thiophene 6 Methylbenzo-Thiophene 7 Dimethyl Benzo- Thiophene 5 6 PKI Detector Response 2 4 3 1 Thiophene 2 2-Methyl Thiophene 3 3-Methyl Thiophene 4 Alkyl Thiophene 5 Benzo-Thiophene 6 Methylbenzo-Thiophene 7 Dimethyl Benzo- Thiophene 5 7 1 6 2 4 SCD Signal(mV) 3 Time(min)

  8. Long –Term Stability - Gasoline

  9. Total Sulfur Content:195 ppm Sample size: 0.005 uL Analysis Time: 0.1 min 500 400 300 0.05 0.10 0.15 0.20 Time(min) Total Sulfur Measurement in Gasoline PKI Detector Response

  10. Resolution - 0.15 pgmS/s; sample used for the study: thiophene Response Time - PWHM: 0.95 sec Selectivity - versus HCs is > 106 Precision - < 3% for 10 runs Stability - drift < 5% per day Interferents - < 0.3% for nitrogen, phosphorous, chlorine compounds Linear Dynamic Range - 105(concentration range with linear response) Summary of Key Technical Results

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