GC Chromatograms

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GC CHROMATOGRAMS | ENVIRONMENTAL Glycols Glycols on Stabilwax® Glycols on Stabilwax® Peaks 1. 1,2-Propylene glycol 2. Ethylene glycol 3. 1,3-Butylene glycol 4. 1,3-Propylene glycol 5. 1,4-Butylene glycol 6. Diethylene glycol 7. Glycerol Column Stabilwax®, 30 m, 0.53 mm ID, 1.00 μm (cat.# 10655) Sample Glycol mix Diluent: Water:methanol (50:50) Conc.: 150 ppm Injection Inj. Vol.: 1.0 μL direct Liner: Open-top Uniliner® liner without wool (cat.# 20843-205) Oven Oven Temp: 80 °C to 200 °C at 8 °C/min (hold 10 min) Carrier Gas He, constant flow Flow Rate: 6.9 mL/min Linear Velocity: 50 cm/sec Detector FID @ 270 °C Make-up Gas Flow Rate: 45 mL/min Notes Septa purge = 5.0 cc/min Peaks 1. Propylene glycol 2. Ethylene glycol Column Stabilwax®, 30 m, 0.53 mm ID, 1.0 μm (cat.# 10655) Sample Glycols Diluent: Water Conc.: 100 ppm Injection Inj. Vol.: 1.0 μL direct Liner: Open-top Uniliner® inlet liner without wool (cat.# 20843-205) Inj. Temp.: 225 °C Oven Oven Temp: 80 °C (hold 1 min) to 200 °C at 8 °C/ min (hold 5 min) Carrier Gas He, constant linear velocity Linear Velocity: 50 cm/sec Detector FID @ 250 °C Instrument Agilent/HP6890 GC Notes Septum Purge: 5.0 cc/min GC_EV00476 GC_EV00546 Chromatogram Search Tool Search by compound name, synonym, CAS #, or keyword www.restek.com/chromatograms www.restek.com 593
GC CHROMATOGRAMS | ENVIRONMENTAL Haloacetic Acids Haloacetic Acids & Dalapon by EPA Method 552.2 on Rtx®-CLPesticides & Rtx®-CLPesticides2 Rtx®-CLPesticides Rtx®-CLPesticides2 GC_EV01006 Peaks Conc. (μg/mL) 1. Methyl monochloroacetate 1.2 2. Methyl monobromoacetate 0.8 3. Methyl dichloroacetate 1.2 4. Dalapon methyl ester 2 5. Methyl trichloroacetate 0.4 6. 1,2,3-Trichloropropane (IS) 4 7. Methyl bromo(chloro)acetate 0.8 8. Methyl bromodichloroacetate 0.8 9. Methyl dibromoacetate 0.4 10. Methyl chlorodibromoacetate 2 11. Methyl 2,3-dibromopropionate (SS) 2 12. Methyl tribromoacetate 4 GC_EV01007 Columns Rtx®-CLPesticides2 30 m, 0.32 mm ID, 0.25 μm (cat.# 11324) and Rtx®-CLPesticides 30 m, 0.32 mm ID, 0.32 μm (cat.# 11141) using Rxi® guard column 5 m, 0.32 mm ID (cat.# 10039) with deactivated universal “Y” Press-Tight® connector (cat.# 20405-261) Sample Haloacetic acid methyl ester mix #2 (cat.# 31647) Dalapon methyl ester (cat.# 32057) Methyl-2,3-dibromopropionate (cat.# 31656) 1,2,3-Trichloropropane (cat.# 31648) Diluent: Methyl tert-butyl ether (MTBE) Injection Inj. Vol.: 1.0 μL splitless (hold 0.75 min) Liner: Cyclo double taper (4 mm) (cat.# 20896) Inj. Temp.: 250 °C Oven Oven Temp: 35 °C (hold 4 min) to 250 °C at 15 °C/min (hold 5 min) Carrier Gas He, constant flow Linear Velocity: 25 cm/sec Detector μ-ECD @ 300 °C Notes This chromatogram was obtained using an Agilent μ-ECD. To obtain comparable results, you will need to employ a μ-ECD in addition to confirmational dual columns connected to a 5-meter guard column using a “Y” Press-Tight® connector. 594 www.restek.com
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GC CHROMATOGRAMS | FOODS, FLAVORS,
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GC CHROMATOGRAMS | FORENSICS Arson
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GC CHROMATOGRAMS | FORENSICS GHB/GB
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GC CHROMATOGRAMS | FORENSICS Inhala
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GC CHROMATOGRAMS | PETROLEUM & PETR
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Ethylene and C1-C5 Hydrocarbons by
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Detailed Hydrocarbon Analysis on Rt
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GC CHROMATOGRAMS | PHARMACEUTICAL O
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Reduce method development time—us
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GC CHROMATOGRAMS | SOLVENTS & CHEMI
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GC Chromatograms

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