PLEASE NOTE: Due to a planned systems upgrade, purchase orders submitted after 10:00 a.m. ET, Friday, April 23, will not be processed until 8:00 a.m. ET, Monday, April 26. We apologize for the inconvenience.
Your web browser will no longer be supported by Restek.com as of 30 June 2021.
To avoid any interruption in access or functionality, install a current-generation web browser now. Learn more.
Share:

Resprep SLE Cartridges and 96-Well Plates

  • Faster and easier than SPE and liquid-liquid extraction: just load, wait 5 minutes, then elute.
  • Effective removal of proteins, phospholipids, and salts.
  • Quick concentration step increases sensitivity.
  • Easy to automate for high-throughput laboratories.
  • Suitable for a wide range of sample matrices and analyte pKa values.

Volume guidelines: Selecting an SLE format with sufficient loading capacity (1 mg sorbent to 1µL diluted sample) is very important because the entire sample volume (including 1:1 dilution in buffer) is absorbed into the diatomaceous earth sorbent. For example, a 100 µL sample should be diluted 1:1 with buffer for a total volume of 200 µL, which requires use of a 200 mg SLE product.

Ordering Notes

Certificates of analysis for this product are provided electronically. To view and download your certificate, simply visit www.restek.com/documentation

Documentation and Instructions Sheets

Resprep SLE Cartridges and 96-Well Plates

Catalog # 28302

Select Catalog # below
Availability:
Price:
Total:
Find a Distributor
Select Catalog # below

Product Options

Not sure which Restek product is the best for your analysis? Consult a Technical Specialist
Catalog #
28302 50-pk. Resprep SLE cartridges, 200 mg/3 mL cartridge Select Deselect

Catalog # 28302

Units
50-pk.  
Product Name
Resprep SLE cartridges, 200 mg/3 mL cartridge  
28303 50-pk. Resprep SLE cartridges, 400 mg/3 mL cartridge Select Deselect

Catalog # 28303

Units
50-pk.  
Product Name
Resprep SLE cartridges, 400 mg/3 mL cartridge  
28304 1-pk. Resprep SLE 96-well plates, 200 mg/2 mL each well Select Deselect

Catalog # 28304

Units
1-pk.  
Product Name
Resprep SLE 96-well plates, 200 mg/2 mL each well  
28305 1-pk. Resprep SLE 96-well plates, 400 mg/2 mL each well Select Deselect

Catalog # 28305

Units
1-pk.  
Product Name
Resprep SLE 96-well plates, 400 mg/2 mL each well  

Dilute-and-shoot is only effective when you are working with relatively clean matrices—complex biological samples, such as whole blood, require a cleanup step or your results may be inaccurate. Matrix components, such as proteins, phospholipids, and salts, introduce interferences and suppression/enhancement effects that compromise data integrity. Solid phase extraction (SPE) and liquid-liquid extraction are excellent ways to produce clean extracts, but they are time-consuming and not always necessary. Your first step in developing a sample preparation procedure should be supported liquid extraction (SLE); if your samples do not require extensive treatment, SLE cleanup is a quick, efficient, and fully automatable solution.