A previously constructed semi-rotating cryogenic modulator was modified for comprehensive two-dimensional gas chromatography (GCxGC). The retention time repeatability was improved by replacing the modulator control program unit with a new system. Peak widths obtained with the modified modulator were comparable with those obtained with the previous modulator and other modulator types. The modulator was easy to construct and it can be installed in any commercial GC system. The constructed GCxGC-FID system and data obtained by gas chromatography-mass spectrometry (GC-MS) were used for identification of unknowns in forest aerosol samples.

Minna Kallio

Matti Jussila

Päivi Raimi

Tuulia Hyötyläinen

Analytical and bioanalytical chemistry

分析和生物分析化学的使命是快速发表关于分析和生物分析测量科学的基础和应用主题的优秀和高影响力的研究文章。它的范围很广，从新颖的测量平台及其表征到有效解决重要科学问题的多学科方法。编辑鼓励提交概念、仪器、方法和/或应用方面的创新分析研究，包括：质谱、光谱学和电分析；高级分离； “组学”和成像、生物分析和取样中的分析策略；小型化设备、医疗诊断、传感器；纳米和生物材料的分析表征；化学计量学和高级数据分析。

The mission of "Analytical and Bioanalytical Chemistry" is to rapidly publish outstanding and high-impact research articles on fundamental and applied topics in analytical and bioanalytical measurement science. The scope is broad, ranging from novel measurement platforms and their characterization to multidisciplinary approaches that effectively address significant scientific issues. The editors encourage submissions of innovative analytical research in concepts, instruments, methods, and/or applications, including: mass spectrometry, spectroscopy, and electroanalysis; advanced separation techniques; analytical strategies in omics and imaging, bioanalysis, and sampling; miniaturized devices, medical diagnostics, and sensors; analytical characterization of nanomaterials and biomaterials; chemometrics and advanced data analysis.

《Analytical and Bioanalytical Chemistry》的使命是快速发表关于分析和生物分析测量科学的基础和应用主题的优秀、高影响力的研究文章。期刊的范围广泛，涵盖从新颖的测量平台及其表征，到有效解决重要科学问题的多学科方法。编辑鼓励提交在概念、仪器、方法和/或应用方面的创新分析研究，包括：质谱、光谱学和电分析；高级分离技术；“组学”及成像、生物分析和取样中的分析策略；小型化设备、医疗诊断、传感器；纳米和生物材料的分析表征；化学计量学和高级数据分析。

Analytical and Bioanalytical Chemistry

Anal Bioanal Chem

Modified semi-rotating cryogenic modulator for comprehensive two-dimensional gas chromatography.

A laboratory-made cryogenic modulator for comprehensive two-dimensional gas chromatography (GC×GC) was constructed and evaluated and peak widths at half height for n-alkanes, obtained with use of new modulator, were at narrowest 60 ms.

Category	Quartile
化学	2
化学, 生化研究方法	3
化学, 分析化学	3

Modified semi-rotating cryogenic modulator for comprehensive two-dimensional gas chromatography.

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Journal Info

Category	Quartile
CHEMISTRY, ANALYTICAL	1