The study found that relevant fingerprint compounds were easily distinguished from carbon cluster peaks when using HRMS. For fair comparison, half of a fingerprint was dusted with CFP while the other half was dusted with traditional organic matrices. All compounds studied had comparable, or higher, signal to noise (S/N) ratios when CFP was used as the matrix. Additionally, chemical image qualities closely followed the trend of S/N ratios. CFP proved to be an effective one-step development and matrix application technique for MALDI MSI of latent fingerprints, when carbon cluster peaks are well separated by a HRMS. (publisher abstract modified)
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