High-performance liquid chromatography-tandem mass spectroscopy (HPLC–MS/MS) chromatography reveals pyrrolizidine alkaloids (PA)/pyrrolizidine alkaloid N-oxides (PANO) toxin risks in 63 tea samples.
|Articles|March 2, 2005
- The Application Notebook-03-01-2005
- Volume 0
- Issue 0
Analysis of Zeaxanthin by Single Quadrupole LC–MS
(3R, 3’R)-zeaxanthin is one of several dietary carotenoids found in human ocular tissue. Research has shown that concentrations of zeaxanthin, as well as other carotenoids, are significantly lower than normal in the macula of persons diagnosed with neovascular age-related macular degeneration (AMD)...
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Advances in DNA/RNA chromatography columns led to stable, pure mRNA production, supporting the development of COVID-19 vaccines rapidly.
Steven Ray Wilson's AFFL LC–MS system runs thousands of injections per column, but he calls validation and standardization the field's real barrier.
Kinjal Bhatt and Ina Varfaj describe imposter syndrome fading through repeated exposure and conference talk rather than a single breakthrough moment.
Mass spectrometry can teach core chemistry concepts beyond technique training or product characterization, though adoption barriers remain.
Automated sequential tube sampling and chemometrics supplement GC–MS, adding time profiling and fast product-line comparison for real-world insight.
Ultrahigh-performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) tracks blood metabolite changes after repetitive transcranial magnetic stimulation (rTMS)-cognitive training therapy.
Revisiting insertion distance for methanol and methylene chloride in GC analysis and confirming that insertion depth strongly affects response and reproducibility.