HPLC CHROMATOGRAPHY HINTS and TIPS FOR CHROMATOGRAPHERS [HPLC TRAINING ARTICLES]

The HPLC "Hints and Tips" found here will be of interest to anyone performing HPLC, UHPLC (UPLC), LC/MS, SFC, CE or GC analysis. Many of these free tips, taken from professional classes that I teach, discuss fundamental to advanced level chromatography concepts in a practical way. Occasionally, I will also include laboratory computer related tips here too. Please "follow" this blog to receive updates of new posts. Hint: Type keywords into the SEARCH bar to quickly find other articles.

Saturday, January 29, 2022

Adjusting the HPLC Gradient Time For Changes in Column Diameter and/or Length (same particle size)

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Changes to the column diameter (to scale the method up or down) can be calculated. For an established HPLC method using the same support typ...
Saturday, December 11, 2021

GC-MS Contamination Identification and Sources

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Over the past few months I have received a number of questions regarding the identification and possible sources of contamination observed i...
Saturday, August 21, 2021

Troubleshooting HPLC Gradient Valve / Proportioning Valve / MCGV GPV Leaks. How to Identify Them.

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HPLC pumps which utilize low-pressure mixing VALVES are known by names such as: "Ternary" (3-solvents) or "Quaternary"...
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Saturday, June 26, 2021

Repair Corrupted Windows 7, 8 & 10 System Files Using the System DISM Tool

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Time to share another useful Microsoft Windows command-line utility tool. If you have experienced the " Blue Screen of Death ", a ...
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HPLC EXPERT
AKA: "The HPLC Doctor". An expert Chromatographer, Scientist, Consultant and Inventor who works in the Analytical, BioMedical, BioPharma, Medicinal Chemistry, Medical Device and Product Engineering fields. I enjoy teaching, working with and training scientists to use different types of analytical instrumentation to solve challenging problems.
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