Part No: AN894Issued year: 2018File size: 1.17mbFile type: pdf
This application note describes the simultaneous extraction of aldosterone at low (< 25pg/mL) concentration and angiotensin I and II from plasma, with the potential to improve throughput and reduce time and costs in PRA determination.
Part No: AN882Issued year: 2017File size: 1.27mbFile type: pdf
The method described in this application note achieves high reproducible extraction recoveries of the peptides oxytocin and vasopressin from serum using a fast, simple EVOLUTE® EXPRESS Load-Wash-Elute SPE procedure.
Extraction from serum was performed using EVOLUTE EXPRESS ABN 96-well plates, utilizing a highly aqueous elution solvent, and minimizing co-extractable material in the form of proteins, lipids and phospholipids.
Part No: P162Issued year: 2017File size: 0.68mbFile type: pdf
This poster investigates the selectivity of polymer-based solid phase extraction sorbents and rapid extraction of clinical matrices, matrix interference reduction and improved analyte detection.
Part No: AN887Issued year: 2017File size: 1.45mbFile type: pdf
This application note describes a solid phase extraction (SPE) protocol for the extraction of the peptide desmopressin from human serum prior to LC-MS/MS analysis.
The method uses EVOLUTE(R) EXPRESS WCX 96-well plates to achieve high recoveries with minimal matrix effects.
Part No: AN750Issued year: 2012File size: 1.14mbFile type: pdf
This application note describes the extraction of several peptides, ranging in size from a 7mer to a 54mer, from plasma and serum using EVOLUTE® ABN in a 96-well plate format. The presence of certain proteins and peptides in human biological matrices can be used as diagnostic markers for the onset of disease and other health problems in humans. The ability to detect and monitor lower levels of peptides can aid in clinical patient health assessments and therapeutic drug level determinations. The sample preparation methodology detailed in this application note can significantly increase sensitivity and detection of peptides from biological matrices on LC/MS/MS. This application note offers the user two different elution strategies due to the extensive combination of peptides that may need to be extracted either strategy may be suitable dependent upon which peptides are relevant.
Peptides, EVOLUTE, SPE, Solid Phase Extraction, Proteins,