- Saves time and simplifies the disk method for oil and grease

 

- Allows the analyst to collect solvent with oil and grease fraction directly into a preweighed collection flask

 

- Allows the chemically dried eluent to be directly evaporated to obtain the weight of the extracted oil and grease

 

 

 - 47mm Complete StepSaver Systems include stainless steel or PVC manifolds as specified

 

- 47mm or 90mm individual StepSaver Kits are also available  

 

- 47mm individual UltraFlow StepSaver Kits and 47mm Complete UltraFlow StepSaver Systems are also available with convenient UltraFlow disposable filter funnels

 

For more information about StepSaver options, visit the oil and grease section of our web site or contact our technical sales department.

 

 

UltraFlow solid phase extraction filter disks work perfectly with the StepSaver for EPA 1664A extractions. UltraFlow filters have a unique laminar design that combines a prefilter with a high-carbon SPE filter. The result is an oil and grease filter with fast flow, high loading capacity and excellent recovery. UltraFlow filters are available in 47mm, 90mm and 100mm.

 

For a complete listing of UltraFlow filter options, visit our web site. 

 

For more information download an UltraFlow product sheet with comparison data.

 

 

Question: Are your recoveries from EPA 1664A consistently low?

 

Answer: When your recoveries either by Liquid-Liquid Extraction (Separatory Funnel) or Solid Phase Extraction are low, eliminate the extraction procedure. Obtain good recoveries by taking a known sample and diluting with 30 mls of n-Hexane. Evaporate the known sample to dryness and reweigh to obtain the final recovery. Becoming comfortable with the evaporation step will help the analyst troubleshoot the extraction procedure.