Direct analysis of lipsticks by Sorptive tape‐like extraction laser desorption/ionization mass spectrometry imaging

Abstract

A novel and rapid technique for lipid evaluation in lipsticks is presented.

Cheese lipid profile using direct imprinting in glass surface mass spectrometry

“…This methodology uses no matrix in the process and requires minimal sample preparation, following a recent trend in our group regarding direct analysis of complex samples. 21 As seen in the results, it ensures great signal cleanliness in mass spectra, as well as assertive and effective data processing, proving to be one very viable alternative for food analysis and determination of authenticity/adulterations.…”

Fast fingerprinting of cannabinoid markers by laser desorption ionization using silica plate extraction

“…This approach has been previously described for the analysis of cosmetic products, also with simple sample preparation and assertive results. 22 The utilized samples were obtained from the police, seized by drug enforcement agents in Campinas, São Paulo, Brazil. The cannabinoids are analyzed based on their abundance in the samples in order to evaluate their chemical prole effectively.…”

Desenvolvimento de técnicas modernas de espectrometria de massas para a análise de compostos bioativos benéficos e tóxicos em alimentos

“…This technique requires little sample preparation and no derivatization or liquid extractions. The STE principle was used as the basis for our procedure of sample preparation for subsequent LDI-MSI analysis, where a silica gel plate (Thin-Layer Chromatography plate) was used as a sorptive tape-like support for the imprinting of samples, in a slightly modified methodology as the ones described in previous works [31,32].…”