Product Overview:
Since introducing the Ultimate XB series in 2005, Welch Materials has earned widespread acclaim from users worldwide for its high column efficiency, peak capacity, and outstanding stability.
The AY-G-C18-PLUS (Ultimate Plus C18) is a significant evolution and upgrade of the classic Ultimate XB-C18. Engineered as a next-generation HPLC column, it integrates Welch’s latest proprietary advancements in silica bonding. Whether you are performing routine quality control or developing complex new analytical methods, the AY-G-C18-PLUS provides the reliability and performance required for demanding chromatographic separations.
Core Technologies & Advantages:
1. Proprietary Stationary Phase Bonding Technology
The AY-G-C18-PLUS utilizes Welch Materials’ unique bonding process, creating a denser and more uniform stationary phase layer. This significantly enhances separation efficiency and selectivity, allowing chromatographers to easily resolve complex sample matrices.
2. Advanced Double End-Capping Technology
To combat the negative effects of residual silanol groups, this column undergoes a rigorous double end-capping process. This effectively eliminates secondary interactions—particularly the non-specific adsorption of basic compounds. The result is a dramatic reduction in peak tailing, providing you with highly symmetrical, perfect peak shapes.
3. Exceptional Stability & Reproducibility
Manufactured under strict quality control standards, the AY-G-C18-PLUS guarantees outstanding batch-to-batch reproducibility. Its robust design ensures a long column lifetime and consistent data output, even under challenging mobile phase conditions (such as extreme pH ranges) and extended operational cycles.
Technical Specifications:
Model | AY-HP-CN100 |
Length | 100m |
Inner Diameter (ID) | 0.25mm |
Film Thickness | 0.2μm |
Stationary Phase | Poly(dicyanopropylsiloxane) |
Polarity | Highly Polar |
Temperature Limits (°C) | 240°C / 250°C |
Applications | FAME (Fatty Acid Methyl Esters) cis/trans isomers |
Equivalent Column | HP-88 |
Application Fields:
With its broad applicability and superior resolving power, the AY-G-C18-PLUS is highly recommended for:
- Pharmaceutical R&D: Active Pharmaceutical Ingredient (API) analysis, impurity profiling, and metabolite research.
- Food Safety: Detection of pesticide residues, veterinary drugs, and illegal food additives.
- Environmental Monitoring: Trace analysis of harmful organic compounds in water and soil.
- Chemicals & Materials: Purity control of fine chemicals and polymer intermediates.
