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centri 254 利用Hisorb高容量萃取棒与GC-MS联用检测红酒中低浓度异味化合物
这项研究表明,使用高容量HiSorb探针进行浸入式吸附萃取,在新型Centri®自动化多模式采样和浓缩平台上进行气相色谱质谱(GC/MS)检测,可用于筛选葡萄酒中ppb级水平的两种酵母衍生的变质(腐坏)化合物,以及一系列其他化合物。
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Centri 254 Identifying low-level odorants in wine by automated high-capacity sorptive extraction with GC–MS
This study shows that immersive sorptive extraction using high-capacity HiSorb probes, automated on the new Centri multi-mode sampling and concentration system for gas chromatography–mass spectrometry (GC–MS), can be used to screen wine for ppb levels of two yeast-derived spoilage compounds, as well as a range of other compounds.
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Centri 250 Correlating consumer sensory experience of apple aroma with VOC profiles acquired by automated TD–GC–MS
This study shows that data acquired using the new Centri® automated multi-mode sampling and concentration 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 headspace profiles of two apple cultivars are sampled onto sorbent tubes, which are then analysed on Centri. The results of this analysis are then correlated with consumer sensory experience to highlight key volatiles of interest.
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Centri 253 通过自动顶空冷阱捕集和GC-MS定量分析水中挥发性有机污染物
这项研究表明,使用新型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,可用于测定水中多种挥发性有机污染物。根据对美国EPA方法524.2中列出的83种化合物的分析结果显示,该方法的色谱性能符合美国EPA标准要求,例如:各物质线性(R2 ,0.9990)、重现性(RSD,6.9%)和分析物回收率(90%),平均检出限(0.11 ppb)。
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Centri 253 Quantitative determination of volatile organic pollutants in water using 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 quantify a wide range of volatile organic pollutants in water. Analysis of an 83-component standard based on the list in US EPA Method 524.2 showed chromatographic performance within the requirements of the method, as indicated by the mean values for linearity (R2 0.9990), reproducibility
(6.9% RSD) and analyte recovery (90%), and a mean detection limit of 0.13 ppb.
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Centri® 应用概览
Centri 样品提取和富集平台的应用汇编,在本概览中,我们汇集了由我们的应用专家和我们在世界各地的客户开发的基于Centri 的全系列应用方法。
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Centri 252 通过自动顶空冷阱捕集和 GC-MS 定量分析食品包装中的残留溶剂
这项研究表明,使用新型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,可用于筛选食品包装中的残留溶剂和其他添加剂。本应用对一种休闲食品的薄复合聚合物的样品(包装物)分析发现,除了制造过程中产生的许多其他挥发性化合物外,还存在含量为 1.92 mg/m2 的乙醇。