本研究通过响应面法(RSM)优化了Phlomis stewartii植物提取物的机械提取工艺，采用Box-Behnken设计(BBD)对转速(X1)、溶剂体积(X2)和提取时间(X3)进行参数优化，获得最高提取率(18.92%)和生物活性成分含量。通过HPLC和GC-MS鉴定出羟基苯甲酸、p-香豆酸等关键酚类化合物及噻唑 ...

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 ...

In Star Trek, Mr. Spock’s hand-held tricorder can instantly tell what something is made of. We don’t have tricorders yet, but we’re getting close. Portable devices just a little too big to hold in one ...

High performance liquid chromatography, more commonly known by the acronym HPLC, is a method used to identify substances in a mixture. There are several types of HPLC, such as reversed-phase, ...

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 ...

Researchers from Iraq, Iran, and Italy analyzed 16 polycyclic aromatic hydrocarbons (PAHs) in grilled beef, kebab, and chicken using magnetic solid-phase extraction with gas chromatography-mass ...