[Application of extraction needle using selective and enhanced polymer in the analysis of samples containing poisonous material].
Low concentrations of gas components usually need to be condensed before analyzing them by gas chromatography (GC). Extraction Needle using Selective and Enhanced Polymer (EN-SEP) is a recently developed devise for condensing the components that are difficult to detect by using GC. EN-SEP consists of a needle which contains methacrylate co-polymer. Gas components are adsorbed and condensed on the polymer by passing through the needle. This paper describes the usefulness of EN-SEP in a criminal case. EN-SEP was successfully applied to condense and detect a trace of propylene glycol monomethyl ether contained in a soft drink by using gas chromatography/mass spectrometry.
Ishizawa
Fujio
F
Scientific Criminal Investigation Laboratory, Ibaraki Prefectural Police Headquarters.
Ishiwata
Tetsuya
T
Miyata
Katsufumi
K
Yoshida
Tsutomu
T
D001628:Beverages / Q000032:analysis*; D003415:Crime; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006540:Herbicides / Q000032:analysis*; D009339:Needles; D011409:Propylene Glycols / Q000032:analysis*
D006540:Herbicides; D011409:Propylene Glycols; C005216:propylene glycol methyl ether