Format:
Online-Ressource
ISSN:
1522-2683
Content:
An LC‐MS method for the analysis of personal care and household products without sample preparation is presented. The method takes advantage of the Direct‐electron ionization (EI) LC‐MS interface for the quantitation of principal components, as well as for the identification of unknown or undeclared ingredients. The technique has proven its inertness toward matrix effects and the electron ionization allows quantitation and library identification. Commercially available products (shower gel, perfume, and hand cream) were diluted with methanol and injected directly into a nano‐LC column. Limonene, linalool, and citral were selected as target compounds because of their use as fragrances in toiletry and detergent products. These and all other fragrances are commonly determined with GC‐MS analysis, prior to sample cleanup, a procedure that can lead to analytes loss. The selected compounds are not detected with ESI because of their poor or very low response. Figures of merit and validation studies were executed and special attention was devoted to matrix‐effects evaluation, because a sample preparation procedure is not involved. No matrix effects were observed, and the repeatability was excellent even after several weeks of operation. Products composition was investigated in full scan mode to determine the presence of unknown or not listed ingredients.
In:
volume:35
In:
number:9
In:
year:2014
In:
pages:1339-1345
In:
extent:7
In:
Electrophoresis, Weinheim : Wiley-Blackwell, 1980-, 35, Heft 9 (2014), 1339-1345 (gesamt 7), 1522-2683
Language:
English
DOI:
10.1002/elps.201300462
URN:
urn:nbn:de:101:1-2023011307325472834177
URL:
https://doi.org/10.1002/elps.201300462
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2023011307325472834177
URL:
https://d-nb.info/1278037349/34
URL:
https://doi.org/10.1002/elps.201300462