This repository contains data files and programs written in Python 3.13 which aim to extract relevant GC-MS data from the text of an instrument-output PDF file. This was used for an experiment for ...

This course includes troubleshooting and maintenance focusing on tunes & diagnostics, GC considerations, vacuum system, ion source, quadrupole mass filter and MS detector. It combines a mixture of ...

A GC/MS procedure was developed for the analysis of all major constituents of glycoproteins. The rationale for this approach is that by using GC/MS analysis of the constituents as heptafluorobutyrate ...

Quality control systems are essential in analytical chemistry, especially metabolomics studies. QC systems have been tested for gas chromatography–mass spectrometry (GC–MS) analysis of amino acids in ...

Agilent 7890B GC is a dynamic partner for the 5977B MSD, with its efficient protocols and fully synchronized MS operation. MassHunter Software puts you in control – and makes your GC/MSD ...

Agilent J&W HP-5ms has very low bleed characteristics that are ideal for GC/MS. The column has excellent inertness for active compounds, including acidic and basic compounds, and improved signal ...

The samplers were then analyzed by thermal desorption-comprehensive two-dimensional gas chromatography-time-of-flight-mass spectrometry (TD-GC × GC-TOFMS). Individual cutaneous VOCs and semi-VOCs ...

2025-06-24 九秩匠心，知行合一丨北京博赛德便携式GC-MS高级培训班，再次赋能环保技术精英 九秩匠心，知行合一丨北京博赛德便携式GC-MS高级培训班，再次赋能环保技术精英 2025-06-23 及时响应、精准检测，HAPSITE ER便携式气质联用仪现场支持盐城响水应急监测工作 ...

The raw GC-MS data were processed using parallel factor analysis (PARAFAC2), and final metabolite data were analyzed by principal component analysis (PCA). Winemaking conditions, vintage, and barrel ...

一、仪器介绍 便携式气相色谱-质谱联用仪GC-MS 2000具有吸附热解吸进样、定量环进样、固相微萃取进样 (SPME)、微量液体进样针进样、顶空进样等多种灵活的进样方式，可满足现场的大气、水体和土中挥发性有机物VOCS和半挥发性有机物SVOC)的快速定性定量分析，具备体积小、重量轻、操作简便和 ...

Conclusion 该研究首次实现GC-TOF/MS与GC-IMS数据的有效融合，通过机器学习筛选出影响质量等级的关键风味标记物。 RF模型在测试集保持89.5%的准确率，证实其稳定性和泛化能力。 相较于传统方法，该体系将分级效率提升20倍，且不受人为因素干扰。

GC-MS analysis Chloroform fraction was found to be the most effectual among all the fractions. Fifty grams dried material of D. metel was dipped in 150 mL methanol. The extract was then filtered with ...