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Using Alternative Carrier Gases for US EPA VOC Drinking Water Methods
Poster Presentation
Prepared by N. Valentine1, T. Hartlein2
1 - Teledyne Tekmar, 4736 Socialville Foster Rd, Mason, OH, 45040
2 - Teledyne Tekmar, 4736 Socialville Foster Rd, Mason, OH, 45040
Contact Information: nvalentine@teledyne.com; 513-229-7086
ABSTRACT
Limited supplies and the rising cost of helium have spurred the need for analytical methods allowing more economical alternatives. With this in mind, new purge and trap VOC methods are being developed and evaluated using nitrogen purge gas, replacing helium. Building upon this new methodology, replacing the helium carrier gas with hydrogen offers the potential for additional cost savings, eliminating the need for helium altogether.
This study will use a Teledyne Tekmar Purge and Trap Concentrator (PTC) to examine the use of alternative carrier gases for the GC/MS system. Comparisons to previous EPA purge and trap methodology using helium and nitrogen will be made. Calibration and detection limit data will be presented for all compounds using different carrier and purge gases per each method.
(Related Session: Topics in Drinking Water)
Poster Presentation
Prepared by N. Valentine1, T. Hartlein2
1 - Teledyne Tekmar, 4736 Socialville Foster Rd, Mason, OH, 45040
2 - Teledyne Tekmar, 4736 Socialville Foster Rd, Mason, OH, 45040
Contact Information: nvalentine@teledyne.com; 513-229-7086
ABSTRACT
Limited supplies and the rising cost of helium have spurred the need for analytical methods allowing more economical alternatives. With this in mind, new purge and trap VOC methods are being developed and evaluated using nitrogen purge gas, replacing helium. Building upon this new methodology, replacing the helium carrier gas with hydrogen offers the potential for additional cost savings, eliminating the need for helium altogether.
This study will use a Teledyne Tekmar Purge and Trap Concentrator (PTC) to examine the use of alternative carrier gases for the GC/MS system. Comparisons to previous EPA purge and trap methodology using helium and nitrogen will be made. Calibration and detection limit data will be presented for all compounds using different carrier and purge gases per each method.
(Related Session: Topics in Drinking Water)