EXPEC 5250 型气相 / 液相 - 三重四极杆质谱联用仪是集成EI和ESI双离子源于一体的自动切换质谱系统，在同一台三重四极杆串联质谱仪上同时联接气相色谱和液相色谱，实现两种分析模式的自动快速切换，在一台质谱仪上实现了 GC- MS/ MS 和 LC- MS/ MS 两种工作模式 ...

本综述系统梳理了南部非洲地区大麻（Cannabis sativa L.）种质资源中关键大麻素（如 9-THC、CBD、CBG）和种子营养成分（蛋白质、氨基酸、脂肪酸）的多样性，并详细比较了气相色谱（GC）、高效液相色谱（HPLC）、核磁共振（NMR）及近红外光谱（NIR）等主流定量 ...

In 1964, University of Utah Chemistry Professor J. Calvin Giddings enunciated a theoretical platform that would provide liquid chromatography (LC) with resolving power equivalent to that of gas ...

本研究针对菲律宾石梓(Gmelina philippensis)活性成分不明的问题，通过GC-MS和HPLC-ESI-MS/MS分析其树皮提取物，发现多种活性化合物 ...

Traditional soda lime silica (SLS) glass bottles have long been the industry standard for the packaging of solvents; however, they may introduce unwanted ions such as Na+, K+, Ca++ and Fe+++ over time ...

The demand for skilled laboratory professionals continues to grow, and chromatography techniques remain dominant tools in nearly every industry. Whether performing a straightforward environmental Gas ...

Chromatography is a proven method used to separate complex samples into their constituents, and it is undisputedly the most important procedure for isolating and purifying chemicals. It is classified ...

With the USP formally implementing a series of test method updates to USP 661.1 and USP 661.2 effective December 1 st 2025 it is imperative that the CS Analytical Team be prepared to help our client ...

Hands‑on learning: Pittcon emphasizes immersive instrument interaction; attendees can work directly with high performance liquid chromatography (HPLC), gas chromatography (GC), mass spectrometry (MS), ...