PMID- 24579867
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 1520-5118 (Electronic)
IS  - 0021-8561 (Linking)
VI  - 62
IP  - 14
DP  - 2014 Apr 9
TI  - In-Tube Extraction-GC-MS as a High-Capacity Enrichment Technique for the Analysis 
      of Alcoholic Beverages.
PG  - 3081-3091
LID - 10.1021/jf405832u [doi]
AB  - An in-tube extraction (ITEX) method for the GC-MS analysis of volatile 
      constituents of alcoholic beverages was developed and applied in the analysis of 
      46 beers from six varieties, Alt, Helles, Kolsch, Pilsener beer, Schwarzbier, and 
      wheat beer, which are popular in Germany. The extraction performance of nine 
      different sorbent materials was evaluated. The best overall sensitivity was 
      achieved using Tenax TA, with method detection limits down to 0.01 mug L(-1), 
      whereas the widest linear range was possible with PDMS, covering almost 5 orders 
      of magnitude. This is the first application of PDMS in ITEX as a high-capacity 
      extraction device and highlights the importance of choosing the appropriate 
      sorbent material for the analytical task at hand. A satisfying chemometric 
      discrimination of all analyzed beer varieties was possible, and alcohol-free 
      beers could clearly be separated from regular beers, also.
FAU - Laaks, Jens
AU  - Laaks J
AD  - Instrumental Analytical Chemistry, University Duisburg-Essen , 
      Universitatsstrasse 5, D-45141 Essen, Germany.
FAU - Jochmann, Maik A
AU  - Jochmann MA
AD  - Instrumental Analytical Chemistry, University Duisburg-Essen , 
      Universitatsstrasse 5, D-45141 Essen, Germany.
FAU - Schilling, Beat
AU  - Schilling B
AD  - BGB Analytik AG, Lettenstrasse 97, CH-8134 Adliswil, Switzerland.
FAU - Molt, Karl
AU  - Molt K
AD  - Instrumental Analytical Chemistry, University Duisburg-Essen , 
      Universitatsstrasse 5, D-45141 Essen, Germany.
FAU - Schmidt, Torsten C
AU  - Schmidt TC
AD  - Instrumental Analytical Chemistry, University Duisburg-Essen , 
      Universitatsstrasse 5, D-45141 Essen, Germany.
LA  - eng
PT  - Journal Article
DEP - 20140327
PL  - United States
TA  - J Agric Food Chem
JT  - Journal of agricultural and food chemistry
JID - 0374755
OTO - NOTNLM
OT  - GC
OT  - ITEX
OT  - beer
OT  - in-tube extraction
OT  - microextraction
EDAT- 2014/03/04 06:00
MHDA- 2014/03/04 06:01
CRDT- 2014/03/04 06:00
PHST- 2014/03/04 06:00 [pubmed]
PHST- 2014/03/04 06:01 [medline]
PHST- 2014/03/04 06:00 [entrez]
AID - 10.1021/jf405832u [doi]
PST - ppublish
SO  - J Agric Food Chem. 2014 Apr 9;62(14):3081-3091. doi: 10.1021/jf405832u. Epub 2014 
      Mar 27.