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Centri 251Screening foods and beverages for butylated hydroxytoluene (BHT) using automated headspace–trap GC–MS This study shows that headspace samples acquired on the new Centri? automated multi-mode sampling and concentration system for gas chromatography–mass spectrometry (GC–MS) can be used to screen food and beverages for trace-level additives. A breakfast cereal and a tea infusion were investigated, and the antioxidant BHT detected in both samples at the ng/g level, along with a range of aroma compounds.
Centri 251 用自动顶空冷阱捕集和 GC-MS 系统对食品和饮料中的二丁基羟基甲苯（BHT）进行筛选这项研究表明，使用新型的Centri?自动化多模式采样和浓缩系统进行气相色谱-质谱法（GC-MS）数据采集分析，可用于筛选食品和饮料中的痕量添加剂（BHT）。本应用研究了早餐谷物和茶冲剂，并且在两种样品中以 ng / g 水平检测到抗氧化剂 BHT，以及一系列芳香化合物。
疾病VOCs 标记物筛查-基于TD-GCxGC-TOFMS呼吸活检分析技术该研究是介绍了一套分析系统用于快速鉴定呼吸气中挥发性有机物（VOCs），用于一些疾病的标记物快速筛查。该系统是基于热脱附吸附管采集呼吸气，经热脱附全自动预浓缩进样，最后经气相色谱 -飞行时间质谱（GC –TOF MS）分析目标物。该系统具有无创易操作的采样过程，经冷阱浓缩和飞行时间质谱分析，具有灵敏度高，软件操作流程清晰明了，可自动对样品进行差异度比较。
热脱附- 气相色谱法连续在线监测空气中有害污染物本应用案例展示了 TT24-7 热脱附仪 ( 热解析仪 ) 如何应用于连续在线监测空气中的有害污染物，以及所得到的随时间变化的浓度数据对排放源分析的贡献。
Centri 262 Comprehensive VOC profiling of meat using dynamic headspace and automated TD–GC–MS analysis This study shows that data acquired using the Centri? automated multi-mode sampling and preconcentration system for gas chromatography–mass spectrometry (GC–MS) can be used to generate useful insights into the aroma profiles of foods. In the example investigated, the dynamic headspace profiles of two cuts of lean steak were sampled at elevated temperature onto sorbent tubes, with subsequent preconcentration on Centri. Over 140 VOCs and SVOCs from a variety of chemical classes were identified, with the detection of a range of sulfur species demonstrating the inertness of the Centri flowpath and the use of optimised sorbent tubes and desorption conditions.
Centri 261 Enhanced aroma profiling of vodka using automated immersive high-capacity sorptive extraction with GC–MS This study shows the advantages of immersive sorptive extraction, using high-capacity HiSorb probes, for the gas chromatography–mass spectrometry (GC–MS) analysis of a wide range of aroma compounds in vodka. Key benefits include full automation on the Centri multi-mode sampling and concentration system, re-collection for repeat analysis of a single sample under different conditions, and selective purging of ethanol.
Centri 259 Improving the performance of headspace sampling using trap-based preconcentration This study shows how large-volume and splitless injections can be used to improve the sensitivity of headspace sampling without compromising chromatography, as well as simplifying method development.

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