UltraFlow Filters for Oil and Grease Brochure

UltraFlow Extraction Disks withPrefilter Layer improve filtration inEPA Method 1664A.UltraFlow SPE filter disks from Environmental Express providethe best recoveries, fastest flow rates and highest solids filteringcapacity available for EPA 1664A testing.Unlike other HEM extraction filters, UltraFlow filters have twolayers. The bottom layer is madeof fine glass fibers infused with C-18 adsorbent which attracts andholds the non-polar HEMfractions. The top layer consists ofcoarse glass fibers. This pre-filtering layer improves filtrationby allowing faster extractions andhas a higher loading capacitywhich allows complete filtrationfor a wide variety of samples. Thepurchase of a separate prefilter isnot necessary and in many cases 47mm filters can be substitutedfor samples that have traditionally required 90mm filters. UltraFlow Filter Disks are available in 47mm, 90mm and 100mm.Disposable Funnels with 47mm filter disks are availableto fit the Environmental Express StepSaverTM and the J.T.Baker® Speedisk Manifold.To make analysis easier, 47mmdiameter UltraFlow filter disks arealso available housed inpolypropylene, disposable funnelswith over 250mL capacity (shownright). These lightweight plasticfunnel assemblies reduce cleanupand improve safety. In addition, oil and grease fractions do notreadily adhere to the sides of the funnels, making recoveries easier.Tests show no measurable extractable levels from the funnelsthemselves. UltraFlow LH Extraction Disks are also available.For applications that do not require pre-filtering, EnvironmentalExpress also offers the UltraFlow LH (Low Hexane) solid phaseextraction filters. These filters have the same extraction capacity asstandard UltraFlow filters, without the extra prefilter layer. EvenThis photo shows three Environmental Express StepSaver units with polypropylene filter funnel assemblies that houseUltraFlow filter disks. Please contact our Technical Sales Department for more information on our StepSaver Systems andUltraFlow products.without the prefilter, the LH filters are significantly faster thancompeting SPE filters for oil and grease. These filters are suitable for all samples except those with significant amounts of silts, clays or colloids. The UltraFlow LH requires less n-hexane for complete elution of the trapped HEM making filtration more economical andresulting in faster evaporations.UltraFlowTMFilters for Oil and GreaseCopyright, Environmental Express, Inc., March 2011Call 800.745.8218 or 843.576.1147 ¦ www.environmentalexpress.comE N V I R O N M E N TA L E X P R E S SThe chart (right) is the result of an independent laboratory studycomparing UltraFlow disks tocompetitors’ products.Environmental Express UltraFlow vs. J.T. Baker® Speedisk® and 3M® Empore®The Environmental Express UltraFlow Oil & Grease solid phase extraction disks are two-stage laminated glass fiber filters that provide thebest recoveries, fastest flow rates and highestsolids filtering capacity available.Environmental Express UltraFlow vs. 3M EmporeThe filtering capacity test consisted of twoparts. One sample set was 1000mg of flour mixedinto one liter of deionized water. This blank matrixtested filtering capacity with a high suspendedsolids load. A second sample set consisted of a40mg hexadecane/stearic acid standard mixedwith 1000mg of flour in one liter of deionizedwater. The results demonstrate excellent recovery, even with particulate-laden samples.UltraFlow vs. J.T. Baker Speedisk and 3M Empore Filtration Time Results % SPE Disk Brand/ Standard Concentration (min.sec) (mg/L) RecoveryUltraFlow – Hexadecane/Stearic Acid Std (40mg/L) 3.31 37.3 93.2%UltraFlow – Hexadecane/Stearic Acid Std (40mg/L) 1.04 37.9 95.0%Speedisk – Hexadecane/Stearic Acid Std (40mg/L) 6.29 33.8 84.5%Speedisk – Hexadecane/Stearic Acid Std (40mg/L) 6.46 33.4 83.5%3M Empore Disk – Hexadecane/Stearic Acid Std (40mg/L) 2.07 38.5 96.0%3M Empore Disk – Hexadecane/Stearic Acid Std (40mg/L) 2.07 27.2 68.0%UltraFlow vs. J.T. Baker Speedisk Filtration Time Results % Various Standard Matrices (min.sec) (mg/L) RecoveryUltraFlow – Motor Oil Std (200mg/L) 4.49 153 76.5%Speedisk – Motor Oil Std (200mg/L) 6.43 116 58.0%UltraFlow – Corn Oil Std (800mg/L) 5.32 778 97.2%Speedisk – Corn Oil Std (800mg/L) 9.16 761 95.1%UltraFlow vs. 3M Empore SPE Disk Brand Filtration Time Results %Various Blank and Sample Matrices (min.sec) (mg/L) RecoveryUltraFlow Disk – 1000mg flour blank 0.7 seconds NA NAUltraFlow Disk – 1000mg flour + 40mg Std 72 seconds 41.1 103%3M Empore Disk – 1000mg of flour blank 863 seconds NA NA3M Empore Disk – 1000mg flour + 40mg Std Clogged Clogged CloggedDescription Catalog #UltraFlow StepSaverTM Kit UltraFlow 47mm StepSaver unit with polypropylene filter funnel assemblies-(Each StepSaver kit includes glass extraction head, stopcock, clamp, 100mL flask and one pack of G5127 UltraFlow Filter Funnel Assemblies) G5747UltraFlow Filters with Prefilter Layer47mm UltraFlow (disks only), Pack of 20 G5047MMNylon Mesh 47mm Filter Screens, Pack of 50 G5047N90mm UltraFlow (disks only), Pack of 15 G5090MM100mm UltraFlow Filters for Horizon® SPE-DEX® (disks only), Pack of 15 G5100MMFilter Funnel Assemblies with UltraFlow Disks with Prefilter LayerUltraFlow Filter Funnel Assembly, funnel size 250mL, filter size 47mm, Pack of 20 G5127UltraFlow Filter Funnel Assembly for J.T. Baker® manifold, funnel size 250mL, filter size 47mm, Pack of 20 G5247UltraFlow Filter Funnel Base only with filter and screen for J.T. Baker manifold, Pack of 20 G5250UltraFlow LH Filter Disks Without Prefilter Layer47mm UltraFlow LH (disks only), Pack of 20 G5347MM90mm UltraFlow LH (disks only), Pack of 15 G5390MM100mm UltraFlow LH (disks only), Pack of 15 G5300MMUltraFlow ProductsEnvironmental Express UltraFlow ComparisonsUltraFlowTMFilters for Oil and GreaseCopyright, Environmental Express, Inc., March 2011Call 800.745.8218 or 843.576.1147 ¦ www.environmentalexpress.comE N V I R O N M E N TA L E X P R E S S