E-resources
Peer reviewed
-
Lopes, Renata Pereira; de Freitas Passos, Érica Eustáquia; de Alkimim Filho, Juarez Fabiano; Vargas, Eugênia Azevedo; Augusti, Daniella Vasconcellos; Augusti, Rodinei
Food control, November 2012, 2012-11-00, Volume: 28, Issue: 1Journal Article
A multiresidue method for the quantification of 13 sulfonamides in animal feed is described. It involves the application of a modified QuEChERS procedure followed by HPLC–MS/MS (high performance liquid chromatography coupled to tandem mass spectrometry) analysis. The best conditions for the extraction solution and PSA (primary secondary amine) mass were determined. After optimization, the method was validated according to the European Commission Decision 2002/657/EC. The validation levels employed were 25, 50 and 75 μg kg−1. Acceptable values were obtained for the following parameters: linearity (0.9864 < r2 < 0.9993), decision limit (50.4 μg kg−1 < CCα < 55.8 μg kg−1), detection capability (50.7 μg kg−1<CCβ < 55.8 μg kg−1), limit of quantification (0.9 μg kg−1 < LOQ < 7.1 μg kg−1), accuracy (86.0 < recovery rates < 106.8), precision (3.6 < repeatability < 19.5), (5.5 < intermediate precision < 21.6), measurement uncertainty (MU) (4.1 < MU < 32.6) and selectivity. These findings met the Codex requirements, which allow for the routine use of the method by the laboratories linked to the Ministry of Agriculture, Livestock and Food Supply of Brazil. Finally, the method was applied to real samples and only one of them showed positive for sulfamethazine, however, with a concentration below the LOQ of the method.
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.