Knowledge Base

Chirality, the handedness in chemistry, can mean a significant difference between life-saver and toxicity. In this article, we not only explore how chiral HPLC separates enantiomers with its unique three-point interaction mechanism, but also briefly introduce five brand new chiral stationary phases in Blossmate Chiral series, greatly expanding Welch Materials' chiral chromatography solutions.

Dynamic Axial Compression (DAC) columns are a definitive tool in preparative-scale liquid chromatographic separation and purification. In this article, we thoroughly explore the key advantages of WelPacker DAC and discover its packing and maintenance details.

The separation of isomers is often a key challenge in HPLC due to its differences being so subtle that standard columns fail to resolve. In this article, we introduce three Welch Materials columns that perform well in isomer separation.

Explosion-proof preparative HPLC is no longer just about a flameproof cabinet. In biopharmaceutical production, true safety means integrating explosion protection, hygienic design, and GMP-ready compliance across the entire system—from fluid path to software. Read this article to see how Welch Materials' WelPacker DAC provides a trustworthy, high-efficiency solution for the complex challenges of purification in hazardous environments.

In this article, we explore the analytical challenges of recombinant humanized type III collagen and show how Xtimate Bio SEC columns support accurate purity and aggregate profiling. The article also highlights the role of SEC in quality control and demonstrates strong chromatographic performance for collagen characterization.

This article explores the fundamental qualities of ODS columns and examines four representative designs from Welch Materials. It reflects on long-standing misconceptions, practical challenges, and design considerations, offering chromatographers deeper insight into one of the most widely used tools in liquid chromatography.

Struggling with weak retention of polar compounds in RP‑HPLC? Discover how Ultisil® AQ‑C18 delivers reliable performance under 100% aqueous conditions in this article. Enhance your analyses with stable retention and extended column life.

Prep in-line filters play a crucial role in maintaining the performance and longevity of preparative chromatography systems. This article explores how these compact devices prevent clogging, reduce wear, and protect columns—acting as a reliable shield for your purification workflow.

This Q&A recap from our May 22 webinar covers essential questions on ADC analysis using Advanchrom HIC-Butyl columns, with expanded expert responses offering deeper insights into best practices and technical considerations.

Discover Welch HPLC columns featured in the 2025 Chinese Pharmacopoeia, with applications and specs for pharmaceutical analysis.

The HPLC autosampler is a key component for precise and efficient chromatography. This guide covers autosampler designs, injection methods, and essential maintenance practices to ensure accurate and reliable results.

This guide explores key differences, functions, replacement guidelines, and selection criteria of guard columns and pre-columns (in-line filters) to help ensure optimal chromatographic performance and extended column lifespan.