Item No.: G8000 - SPE-XPress - Automated System for Oil and Grease, Each
| Qty | Price |
|---|---|
| 1 | $31,000.00 |
SPE-XPress Automation of EPA Method 1664
The SPE-XPress system is specifically designed for the extraction and evaporation required by EPA Method 1664 for Oil and Grease Analysis.
SPE-XPress is the ONLY system that:
- Both extracts your sample and evaporates the n-Hexane eliminating the transfer step
- Verifies that the sample vessel is empty utilizing a fluid sensor rather than a timeframe improving accuracy
- Runs multiple samples simultaneously on up to 6 stations improving analyst efficiency
Simply load the 3-station SPE-XPress with standard one-liter sampling jars and walk away. The system flushes itself clean, preps the extraction disk, then filters and extracts the sample through sodium sulfate with n-Hexane. In the final stage the SPE-Xpress automatically transfers the extract to a pre-weighed aluminum pan where it is evaporated to dryness. Remove the pan for final weighing and the process is complete. User-friendly PC software controls the functionality while recording data for downloading to LIMS.
SPE-Express is the only system that both extracts your sample and evaporates the n-Hexane. And the only one that utilizes a fluid sensor to verify that the sample vessel is empty. It will reduce time and labor in your lab, improve accuracy plus minimize analyst contact with hazardous chemicals.
Each 3-station system comes with:
- Base 3-station Unit
- Operation and Instruction Manual
- Easy-to-install Software
- Bottle Rack (ABP110)
- 20-Liter Carboy (G3070)
- 2 Packs of Na2SO4 Drying Cartridges (G1065), 50 per pack
- 1 Pack of Aluminum Weigh Dishes (F93140DSH), 100 per pack
- 1 Pack of UltraFlow Filter Assemblies (G5260), 100 per pack
- 1 Pack of O-Rings (G8206), 15 per pack
Two 3-station systems can be networked to one PC for a total of 6 stations. PC not included.
Question/Answer
How often do you have to change the drying cartridges and how much are they?
The drying cartridges are single use only. Please consult the SPE-XPress accessories page (http://www.envexp.com/component/envexp/1-Wet_Chemistry/SS-Oil_and_Grease_EPA_1664/SPEX2-SPE-XPress_Accessories/G1065-SPE_-_5_5_Gram_Na2SO4_Drying_Cartridge%2C_50pk)or call any member of our sales team to find the current pricing on the cartridges.
Will this work with metallic powders that are being analyzed for oil and grease?
This system is not designed for use with solid matrices. A soxhlet extraction would be more applicable.
How about the sample with lots of suspended solid? Will they be filtered porperly? How Is sodium sulfate tube drying efficiency?
The instrument uses a liquid level sensor in the sample bottle to determine when all sample has been filtered. The filtration step will continue until that sensor detects no more free liquid in the sample container. If the sample contains large amounts of suspended solids you may experience an extended filtering cycle, but the instrument will filter all of it. In our testing we tried to find a sample with enough solids content that would halt the filtering process but every one finished. The sodium sulfate tubes contain 5.5 g of the salt and are just as efficient as that amount of salt would be under normal circumstances. I believe the molar ratio of sodium sulfate to water absorbed is 10.
What is the typical time from start to finish for a O&G measurement?
This certainly will depend on how turbid of a sample you are dealing with but a good average total time from start to finish would be around 50 - 60 minutes.
How dirty was the sames used in this system? Are you using a wide mouth jar?
The beta testing site was a municipal water treatment plant so the turbidity of the samples tested varied greatly from relatively clean to very turbid (effluent and influent samples). The jars used are the ones mentioned in method 1664 though adaptors are available for other sized openings.
How does this system measure sample volume?
The unit does not measure sample volume. The sample volume is user-defined and must be input into the software program as one of the steps before running the extraction procedure.
We use wide-mouth sample jars. Do you have an adapter? I don\'t see any solvent jars. How is the solvent delivered or are they just not hooked up in the picture?
Adaptors are available for other size sample jars. Contact us at info@envexp.com for specific sizes. Solvents are added using nitrogen to create a positive pressure for injection. This is not pictured on the web but if you look at the technical data sheet you can see a drawing of where the nitrogen line is hooked up and where the reagent inlet lines are located.