Premium
Needle‐trap device for the sampling and determination of chlorinated volatile compounds
Author(s) -
Dobrzyńska Elżbieta,
Buszewski Bogusław
Publication year - 2013
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201300571
Subject(s) - tenax , dichloromethane , chromatography , sorbent , extraction (chemistry) , chemistry , trap (plumbing) , volatile organic compound , sampling time , gas chromatography , gas chromatography–mass spectrometry , sample preparation , sampling (signal processing) , mass spectrometry , adsorption , organic chemistry , filter (signal processing) , environmental science , solvent , statistics , mathematics , environmental engineering , computer science , computer vision
A needle‐trap device, with immobilized sorbent inside the syringe, coupled with GC – MS was applied for air sampling and determination of chlorinated volatile organic compounds such as dichloromethane, trichloromethane, and tetrachloromethane. The application of a needle trap packed with combination of three sorbents including Tenax TA , C arbopack X , and C arboxen 1000 resulted in detection limits of few pg for chlorinated volatile compounds and recoveries of 99.2–102.8%. The extraction and desorption parameters were optimized within the study. As a result, the precision determined as RSD was equal to 5.05 and 3.03 and 6.52% for dichloromethane, trichloromethane, and tetrachloromethane, respectively. The storage time for chlorinated compounds up to 48 h and reusability of the needle‐trap device were verified. The obtained results have proved the ability of needle traps to compete with other solventless sampling and sample preparation extraction techniques.