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1 Environmental Express Webinar Method 1664 Oil and Grease Lightning 02/02/2016
2 What is Oil & Grease?
3 Method-Defined Analyte HEM vs. Oil & Grease Method modifications are extremely limited Modifications cannot alter the chemistry of the method Modifications cannot adversely affect HEM recoveries
4 From EPA to EPA 1664 Replaced Freon with n-hexane 1664 adopted d in 1999 and we are now up to Revision B EPA withdrew all Freon methods from 40 CFR part 136 in is now the only method approved for testing wastewater for oil & grease
5 What did Method Change Mean? Oil & Grease still a method-defined analyte though is now considered d Hexane Extractable t Material (HEM) The term "total petroleum hydrocarbons" (TPH) has been replaced by "non-polar material" (NPM) to avoid confusion with TPH measurements by other methods The requirement for a matrix spike duplicate (MSD) has been changed to a suggestion The size of an analytical batch has been increased to a maximum of 20 samples per discharge or waste stream Use of solid-phase extraction (SPE) has been allowed without a demonstration of equivalency
6 LLE vs. SPE Liquid-Liquid q Extraction 3 shakes of 30 ml of solvent Higher analyst exposure to n-hexane Prone to emulsions Relies on analyst precision and accuracy Hexane floats! Solid-Phase Extraction Little solvent usage (as little as ml) Less solvent = less exposure Less labor intensive Frees up analysts to do other things in the lab More consistent results
7 Solid Phase Extraction (SPE) SPE allowed in Revision A of Method 1664 without a demonstration of equivalency Utilizes an extraction disk impregnated with C-18 as the absorbent resin The C-18 in the disk is activated with a polar solvent (methanol) prior to sample filtration Sample is vacuum pulled through h the disk which h retains the HEM HEM is then eluted off of the disk with n-hexane Hexane + HEM collected in a pre-weighed flask or dish and the n-hexane driven off by heat to leave the HEM behind
8 Important things about SPE Extraction disc is not analyte specific C-18 used to make discs will adsorb antibiotics, pesticides, herbicides, surfactants, and vitamins Solvent used for elution is the determining factor Capacity of the disc parking lot analogy
9 Manual SPE
10 Assembling the StepSaver
11 Assembling the StepSaver
12 Assembling the StepSaver
13 Assembling the StepSaver
14 Assembling the StepSaver
15 Assembling the StepSaver
16 Assembling the StepSaver
17 Assembling the StepSaver
18 Using the StepSaver Disc Activation Alternate option, UltraPrep Remove methanol, replace with DI water Vacuum filter sample Dry disc Elute with hexane Evaporate the hexane
19 Potential Problems with SPE Particulate laden samples Extraction disc activation Residual analyte in the sample bottle
20 Automated SPE
21 Environmental Express SKUs -- Equipment StepSaver Systems Part # Description Part # Description G Station. 47mm w/ Glass Funnel G Station. PVC. Disposable Funnel G Station. 90mm w/ Glass Funnel G Station. PVC. Disposable Funnel G Station. 47mm no funnel G Station. PVC. Disposable Funnel G Station. PVC. Glass Funnel G Station. Stainless Steel. Disposable Funnel G Station. PVC. Glass Funnel G Station. Stainless Steel. Disposable Funnel G Station. PVC. Glass Funnel G Station. Stainless Steel. Disposable Funnel G Station. Stainless Steel. Glass Funnel GUP Station. PVC. Disposable Funnel With UltraPrep Funnels G2103 G2106 GUP1101 GUP1103 GUP1107 GUP2101 GUP2103 GUP Station. Stainless Steel. Glass Funnel 6 Station. Stainless Steel. Glass Funnel 1 Station. PVC. Glass Funnel. With UltraPrep funnels 3 Station. PVC. Glass Funnel. With UltraPrep funnels 7 Station. PVC. Glass Funnel. With UltraPrep funnels 1 Station. Stainless Steel. Glass Funnel. With UltraPrep funnels 3 Station. Stainless Steel. Glass Funnel. With UltraPrep funnels 6 Station. Stainless Steel. Glass Funnel. With UltraPrep funnels GUP Station. PVC. Disposable Funnel With UltraPrep Funnels GUP Station. PVC. Disposable Funnel With UltraPrep Funnels GUP Station. ti Stainless Steel. Disposable Funnel With UltraPrep Funnels GUP Station. Stainless Steel. Disposable Funnel With UltraPrep Funnels GUP Station. Stainless Steel. Disposable Funnel With UltraPrep Funnels
22 Environmental Express SKUs -- Discs Part # G5300MM G5347MM G5390MM G5047MM G5090MM G5100MM G5127 G5260 GUP047MM GUP090MM GUP100MM GUPF47EE FG650100MM FG65041MM FG65047MM FG65090MM Description UltraLow 47mm C18 discs without prefilters. 20pk UltraLow 90mm C18 discs without prefilters. 15pk UltraLow 100mm C18 discs without prefilters. 15pk UltraFlow 47mm C18 discs with prefilters. 20pk UltraFlow 90mm C18 discs with prefilters. 15pk UltraFlow 100mm C18 discs with prefilters. 15pk StepSaver disposable funnels with 47mm UltraFlow discs. 20pk Filter assembly with UltraFlow 47mm disc. No Funnel. 100pk UltraPrep 47mm Preactivated discs with prefilters. 20pk UltraPrep 90mm Preactivated discs with prefilters. 15pk UltraPrep 100mm Preactivated discs with prefilters. 15pk StepSaver disposable funnels with 47mm UltraPrep discs. 20pk 100mm Thick glass fiber prefilters. 50pk 41mm Thick glass fiber prefilters. 50pk 47mm Thick glass fiber prefilters. 50pk 90mm Thick glass fiber prefilters. 50pk
23 Environmental Express SKUs -- Accessories Part # Description Part # Description G2018 G3004 G3020 Standard. 5mL tubes. 40mg HEM. 20pk Standard. 10mL tubes. 4mg HEM. 20pk Standard. 30mL bottles. 40mg HEM. 9pk LCCC08002 Reagent. n-hexane Hexane. 25L 2.5L LCCC08002C Reagent. n-hexane. 4x 2.5L LCCC08003 Reagent. Methanol ACS. 2.5L G3023 MDL Standard. 10mL tubes. 7mg HEM. 20pk LCCC08003C Reagent. Methanol ACS. 4x2.5L G3024 MDL Standard. 10mL tubes. 5mg HEM. 20pk LCCC08004 Deionized Water. 2.5L G3025 Standard. 10mL tubes. 40mg HEM. 20pk LCCC08004C Deionized Water. 4x2.5L G3026 MDL Standard. 10mL tubes. 10mg HEM. 20pk LCCC08005 Reagent. n-hexane. For smart bottle rack system. 4L G7000 QuikVap evaporating system. 120 volt LCCC08005C Reagent. n-hexane. For smart bottle rack system. 4x4L G QuikVap evaporating system. 240 volt LCCC08006 Reagent. Methanol ACS. For smart bottle rack system. 1L G1200 Single-place stainless steel manifold for Oil & Grease LCCC08006C Reagent. Methanol ACS. For smart bottle rack system. 6x1L G1210 Single-place PVC manifold for Oil & Grease LCCC08007 Deionized water for smart bottle rack system. 1L G Place stainless steel manifold LCCC08007C Deionized water for smart bottle rack system. 6x1L G Place PVC manifold for Oil & Grease G Place PVC manifold for Oil & Grease G1300 G Place stainless steel manifold for Oil & Grease 1/8 HP vacuum pump Hg. 115VAC
24 Thank you for attending Questions? us at OR call us p p 02/02/2016
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