Solid Phase Extraction
Waters Corp Waters Sep-Pak Cartridge, DNPH-Silica, 800 mg, 55–105 μm, 20/pk
The Sep-Pak DNPH-Silica Plus Long Cartridge is designed for analyzing formaldehyde, other aldehydes, and ketones in air. It meets EPA Method TO-11A, JPM HLW, and ISO 16000 requirements, making it an excellent device for sample collection. Air is redirected through the cartridge using a vacuum pump, allowing ketones and aldehydes to react with DNPH, forming hydrazone derivatives. These hydrazones can then be eluted with acetonitrile for sample analysis.
- Provides low background for higher sensitivity.
- Saves time and increases productivity.
- Offers superior convenience and reproducibility, ideal for field sampling and process monitoring.
- Reduces solvent consumption, solvent exposure, and hazardous waste disposal costs.
- Supports high-speed, high-resolution UPLC Technology applications for excellent quantitation capability in the low parts-per-billion range.
Waters Corp Waters Sep-Pak Silica Plus Long Cartridge, Silica, 690 mg, 55 - 105 μm
Waters Sep-Pak Silica Plus Long Cartridge, Silica, 690 mg, 55 - 105 μm
Waters Corp Waters SPE Cartridge, MCX, 1 cc, Flangeless, 30 mg Sorbent
This flangeless vac cartridge features a novel, mixed-mode polymeric sorbent optimized for extracting basic compounds with cation-exchange groups. It provides high selectivity, sensitivity, and excellent recoveries even if the sorbent runs dry due to its water-wettable nature. Designed for automated SPE systems, it offers a broad operating pH range of 0 to 14 pH.
- Contains a novel, mixed-mode polymeric sorbent
- Optimized for extracting basic compounds with cation-exchange groups
- Maintains high retention and excellent recoveries even if sorbent runs dry
- Flangeless configuration for close packing in automated systems
- Stable across a broad pH range, enabling robust processes
- Utilizes ion exchange and reversed-phase retention modes
- Operates within a pH range of 0 to 14 pH
- Provides high SPE recovery, clean extracts, and low method variability
Hach Company Xenosep SPE Starter Kit Without Hexane Recovery Option
Xenosep Solid-Phase Extraction (SPE) Systems offer the easiest and most cost effective way to test for Oil and Grease using EPA Method 1664A. Fast, in-house results enable you to maintain control over your plant discharges in real time without the complications of the hexane LLE procedure. Xenosep SPE filters feature a unique triple layer that prevents premature clogging and flows 10 times faster than typical SPE filters.It is now possible to easily achieve reliable, consistent Oil and Grease results and decrease your sample turnaround time. A free training video on CD is included with each Starter Kit to show your lab how to perform EPA Method 1664A by SPE. For more information on Xenosep SPE Systems, visit our website at www.hach.com/xenosep.Xenosep SPE Systems are available in convenient kits which include the components for 24 tests and all the glassware required to process them, one at a time. Replacement components are also available.
SKC Inc TUBES-SORBENT SIL GEL 50/PK
DOES NOT ship to Alaska, Arizona, California, Colorado, Hawaii, Idaho, Nevada, Oregon, Utah, Washington. Wyoming”