应用报告-思聚仪器仪表（上海）有限公司

Centri 255 基于冷阱富集聚焦的预浓缩技术与GC-MS联用定量分析水中痕量异味物质：SPME固相微萃取和Hisorb高容量吸附萃取棒的性能对比这项研究表明，使用新型Centri®自动化多模式采样和浓缩系统提取和浓缩水中的痕量异味化合物，使用两种顶空进样方法SPME固相微萃取和HiSorb高容量吸附萃取棒——基于冷阱富集聚焦的预浓缩技术与GC-MS联用进行数据分析。目标分析物IPMP，IBMP，2-MIB，2,4,6-TCA和土臭味素的性能符合ISO 17943和GB 5749的要求，线性> 0.996，平均MDL约为1 ppt。我们还描述了每种采样方法的关键属性，并讨论了Centri提供的选项，这些选项允许根据特定的应用要求进行最佳匹配。
Centri 255 Quantifying trace odorants in water by GC–MS with trap-based preconcentration: Assessing SPME and high-capacity sorptive extraction This study describes the use of the new Centri sample automation and concentration platform to extract and quantify trace-level odorants in water, using two headspace sampling methods – multi-phase SPME fibers or HiSorb high-capacity sorptive extraction probes – in conjunction with trap-based preconcentration and GC–MS. Performance for the target analytes IPMP, IBMP, 2-MIB, 2,4,6-TCA and geosmin was within the requirements of ISO 17943 and GB 5749, with linearities >0.996 and mean MDLs of the order of 1 ppt. We also describe the key attributes of each sampling method, and discuss the options offered by Centri that allow the optimum choice to be made based on specific application requirements.
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。
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.
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.
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）。
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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