Two-dimensional liquid chromatography (2D-LC) improves chromatographic performance, with LCxLC providing extensive information for complex mixtures but requiring precise parameter adjustments. A free ...

If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

Nearly 25 years after she and Nelly dropped their 'Dilemma' video, she still gets questions about a specific moment that has become a meme.

All details in this article are correct as of October 7, 2025. Accessibility to some of the latest Excel features depends on your Microsoft 365 subscription level and whether you are enrolled in the ...