Abstract
The performance of a miniaturized sample processing platform for matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS), manufactured by silicon microfabrication, called integrated selective enrichment target (ISET) technology was evaluated in a biological context. The ISET serves as both sample treatment device and MALDI-MS target, and contains an array of 96 perforated nanovials, which each can be filled with 40 nL of reversed-phase beads. This methodology minimizes the number of sample transfers and the total surface area available for undesired adsorption of the analytes in order to provide high-sensitivity analysis. ISET technology was successfully applied for characterization of proteins coisolated by affinity chromatography of prostate-specific antigen (PSA) from human seminal fluid. The application of ISET sample preparation enabled multiple analyses to be performed on a limited sample volume, which resulted in the discovery that prolactin inducible protein (PIP) was coisolated from the samples.
| Original language | English |
|---|---|
| Pages (from-to) | 3769-3777 |
| Journal | Electrophoresis |
| Volume | 25 |
| Issue number | 21-22 |
| DOIs | |
| Publication status | Published - 2004 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Clinical Chemistry, Malmö (013016000), Biomedical Engineering (011200011), Analytical Chemistry (S/LTH) (011001004)
Subject classification (UKÄ)
- Medicinal Chemistry