Environmental Applications US EPAMethod 551.1


Column A: HP-1ms Ultra Inert 19091S-733UI 30 m x 0.25 mm, 1.00 µm


Column B: DB-1301 122-1333 30 m x 0.25 mm, 1.00 µm


Instrument: Agilent 7890A GC Sampler:


Carrier: Inlet:


Retention Gap:


Oven: Detector: Hz


100 200 300 400 500 600 Column A


1 Hz


100 200 300 400 500 600


Column B 6 2 3 1 10 15 4 7 20 9 11 15 10 5 12 14 4 2 3 5 6 7 10 15 20 9 8 10 11 12 13 14 15 17 16 18 19


Agilent 7683B, 5.0 µL syringe (Agilent p/n 5181-1273) 0.5 µL splitless injection Helium 25 cm/s, constant flow


Splitless; 200°C, Purge flow 20 mL/min at 0.25 min


1 m, 0.32 mm ID deactivated fused silica high-temperature tubing (Agilent p/n 160-2855-5)


33°C (14 min) to 60°C (5°C/min), hold 5 min, 15°C/min to 275°C, hold 20 min


Dual G2397A µECD; 300°C, const col + makeup (N2) = 30 mL/min


20


1. Chloroform 2. 1,1,1-Trichloroethane 3. Carbon tetrachloride 4. Trichloroacetonitrile 5. Dichloroacetonitrile 6. Bromodichloromethane 7. Trichloroethylene 8. Chloral hydrate 9. 1,1-Dichloro-2-propanone 10. 1,1,2-Trichloroethane 11. Chloropicrin 12. Dibromochloromethane 13. Bromochloroacetonitrile 14. 1,2-Dibromoethane 15. Tetrachloroethlyene 16. 1,1,1-Trichloro-2-propanone 17. Bromoform 18. Dibromoacetonitrile 19. 1,2,3-Trichloropropane 20. 1,2-Dibromo-3-chloropropane


25 16 20 13 17 19 18 30 min


Suggested Supplies Septum: 11 mm Advanced Green septa, 5183-4759 Liner: Direct connect, dual taper, deactivated, 4 mm ID, G1544-80700


Syringe: 5 µL tapered, FN 23-26s/42/HP, 5181-1273


25


30


min EPA_551-1


This application successfully demonstrates the use of the HP-1ms Ultra Inert column for primary analysis of EPA 551.1 chlorinated solvents, trihalomethanes and disinfection by-products. The excellent peak shape of the chloral hydrate and resolution between bromodichloromethane and trichloroethylene emphasize the high column inertness of the HP-1ms Ultra Inert column, making it an excellent choice for EPA Method 551.1 analysis.


Order online at www.agilent.com/chem/store


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