News|Webcasts|June 3, 2024

HPLC Column Troubleshooting – Can We Fix It?

Webinar Date/Time: Wednesday June 26th 8am PST | 11am EST | 4pm BST | 5pm CET

This webcast will provide useful practical advice on troubleshooting issues relating to HPLC columns and how to minimize and resolve these.

Register Free:
https://www.chromatographyonline.com/ca_w/hplc
Event Overview:

This webcast will provide useful, practical advice on troubleshooting issues relating to HPLC columns and how to minimize and resolve these.

Topics Covered: 

  • Columns and fittings
  • Silica-based column packing, limitations, and batch robustness
  • Measuring column performance – resolution, asymmetry, and efficiency
  • Overview of ultra-high performance liquid chromatography – advantages and disadvantages
  • Common column problems
  • High pressure
  • Voids
  • Reversing columns
  • Peak shape issues – what causes tailing and fronting
  • Strategies for minimizing column damage caused by sample matrix
  • Cleaning and regeneration

Speaker:

Colin Towers
Senior Technical Support Chemist
Element

Colin Towers is a senior technical support chemist with Element based in Glasgow, Scotland. After completing a degree in pharmacy, Towers pursued a career in analytical chemistry. Following 3 years performing routine testing and 3 years conducting instrument maintenance and calibration, he moved into a role as a method development and validation specialist in contract research. He gained 11 years of experience in developing methods for HPLC, LC-MS, GC, GC-MS, and SPE in a high-throughput commercial environment. In addition, he spent 3 years lecturing in forensic analytical toxicology and a further 3 years working as a community pharmacist. Towers has been with Element since 2011 as a technical specialist, consultant, and trainer.


Register Free:
https://www.chromatographyonline.com/ca_w/hplc


Related to this article

Chromatography Detects Toxins in Tea Samples
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.
Figure 2. Split injection used to measure triplicate test of MTBE, hexane, o-xylene, and 1-methylnaphthalene comparing different solvents (methanol, methylene chloride) and column insertion distances starting with 0.5 mm, 5.0 mm, 10.0 mm, 15 mm, and 20.0 mm. Methanol had the best performance at the 5.0 mm insertion distance and methylene chloride looked slightly better at the 0.5 mm. We would still recommend not going below the 5.0 mm manufacturer recommended insertion distance.
Revisiting insertion distance for methanol and methylene chloride in GC analysis and confirming that insertion depth strongly affects response and reproducibility.