Skip to main content
. Author manuscript; available in PMC: 2011 May 15.
Published in final edited form as: Anal Chem. 2010 May 15;82(10):4130–4139. doi: 10.1021/ac100242b

Figure 6.

Figure 6

Analysis of VICATSH-modified mesh substrates submerged in urine samples. Mesh 1 was rinsed with H2O prior to TM-DESI-MS analysis while Mesh 2 was air dried without any additional rinsing. The extracted ion chronogram for the ion of m/z 198 (blue) illustrates that the response for VICATSH is dramatically reduced when the sample was not rinsed. The extracted ion chronogram for the ion of m/z 86 (gold) corresponds to the presence of creatinine, an abundant component of urine whose presence causes ion suppression of lower abundance analytes. Together the two chronograms illustrate the impact of effective matrix removal following analyte capture.