Breath acetone analysis with miniaturized sample preparation device: In-needle preconcentration and subsequent determination by gas chromatography–mass spectroscopy

Rapid Temperature-Programmed Separation and Retention Prediction on a Novel Packed-Capillary Column in Gas Chromatography

“…For preparing gaseous sample mixtures from corresponding liquid analytes, either a Tedlar Bag or an aluminum bag (GL Sciences) was used along with a glass gas vessel of 1.0 L volume (GL Sciences) for preparing initial standard gas samples, as described previously. [24][25][26] To the inlet of the gas sampling bags, a section TYGON tube (Saint-Gobain, Tokyo, Japan), 5 mm i.d., 7 mm o.d., 30 mm length, was attached, where the other end of the tube was capped with a silicon septum, and a syringe needle was inserted into the sampling bag through the septum. All of the sampling bags were cleaned at least five times by pure N2 before use, and the successful completion of the cleaning process was confirmed in preliminary experiments.…”

Determination of Volatile Organic Compounds for a Systematic Evaluation of Third-Hand Smoking

“…9 This polymer particle-packed extraction needle was successfully applied to the analysis of ETS 11 and human breath. 16 In this paper, a polymer particle-packed extraction needle was applied to the evaluation of a potential risk of third-hand smoking. Smoking-related VOCs adsorbed on several types of fabrics were determined, and the time variation of the VOCs concentration was studied.…”

Miniaturization for the Development of High Performance Separation Systems

“…As the sample matrix, a variety of environmental air samples were extracted with an advantageous future of easy sampling without any electric pump [83][84][85][86][87][88][89][90][91][92][93]. Introducing a vacuum air sampling syringe, it takes about only 5 minutes to complete a typical air volume of 100 mL.…”