PMID- 19071541
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20091216
LR  - 20081216
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 71
IP  - 5
DP  - 2007 Mar 30
TI  - Gas chromatography mass spectrometry determination of acaricides from honey after 
      a new fast ultrasonic-based solid phase micro-extraction sample treatment.
PG  - 1906-14
LID - 10.1016/j.talanta.2006.08.035 [doi]
AB  - A method is reported for the determination of acaricides (amitraz, 
      bromopropylate, coumaphos and fluvalinate) from honey by gas chromatography mass 
      spectrometry after a new fast solid phase micro-extraction, SPME, procedure. Six 
      different fibers were assessed for micro-extraction purpose studying the 
      following variables: (i) SPME coating, (ii) extraction temperature, (iii) 
      extraction time, (iv) desorption conditions and (v) agitation conditions. The new 
      ultrasonic bath technology providing different sonication frequencies (35 and 
      130kHz) and different working modes (Sweep, Standard and Degas) was studied and 
      optimized for speeding up the acaricide micro-extraction. The best extraction 
      results were achieved with the polyacrylate fiber. The extraction process was 
      done in 30min using the ultrasonic bath at 130kHz in the Standard mode. Quality 
      parameters of the proposed method show a good precision (<11%) and detection and 
      quantitation limits lower than 6 and 15ng/g, respectively, except for 
      fluvalinate. Eleven Portuguese commercial honey samples were analyzed with the 
      developed method in order to assess the performance of the method with real 
      samples and to determine whether the concentration of acaricides in honey exceed 
      their maximum residue levels (MRLs). Acaricide residues detected were lower than 
      those established by the legislation.
FAU - Rial-Otero, R
AU  - Rial-Otero R
AD  - REQUIMTE, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, 
      Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal. 
      raquelrial@dq.fct.unl.pt
FAU - Gaspar, E M
AU  - Gaspar EM
FAU - Moura, I
AU  - Moura I
FAU - Capelo, J L
AU  - Capelo JL
LA  - eng
PT  - Journal Article
DEP - 20060925
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
EDAT- 2007/03/30 00:00
MHDA- 2007/03/30 00:01
CRDT- 2008/12/17 09:00
PHST- 2006/06/16 00:00 [received]
PHST- 2006/08/20 00:00 [revised]
PHST- 2006/08/21 00:00 [accepted]
PHST- 2008/12/17 09:00 [entrez]
PHST- 2007/03/30 00:00 [pubmed]
PHST- 2007/03/30 00:01 [medline]
AID - S0039-9140(06)00597-2 [pii]
AID - 10.1016/j.talanta.2006.08.035 [doi]
PST - ppublish
SO  - Talanta. 2007 Mar 30;71(5):1906-14. doi: 10.1016/j.talanta.2006.08.035. Epub 2006 
      Sep 25.