1.
Rapid Commun Mass Spectrom
; 23(3): 357-62, 2009 Feb.
Article
in English
| MEDLINE
| ID: mdl-19127530
ABSTRACT
A tiny droplet of typical samples of fabric softeners from different commercial brands placed on a smooth paper surface was subjected to easy ambient sonic-spray ionization mass spectrometry (EASI-MS). With no need for sample-preparation or pre-separation procedures, EASI-MS and EASI-MS/MS identify nearly instantaneously the main surfactants and the homologous series employed in their formulations. Adulterated and low quality samples containing no or less efficient softeners are also easily recognized.