These analyses often rely on gas chromatography and liquid chromatography systems. In both cases, poor sealing can compromise results before the sample ever reaches the detector.
Failure points include:
- Volatile compound loss due to weak septa resealability
- Oxygen ingress altering oxidation-sensitive compounds
- Septa bleed interfering with low-level detection
- Chemical incompatibility between liner material and analytes
Precision closures are not an accessory. They are an integral part of the analytical system.
Chromatography Workflows in Beverage Labs
Gas Chromatography Applications
Gas chromatography is commonly used in beverage testing laboratories for volatile compound analysis and headspace applications. Accurate GC workflows depend on clean, compatible closures that meet analytical laboratory requirements.
ILT supports chromatography and headspace applications with:
These products are available in multiple liner configurations, including PTFE/silicone combinations, and are manufactured using high-quality materials in accordance with GMP and ISO 15378 standards. All ILT Level-3 and 4, low-bleed and ultra-low-bleed caps and septa are tested in ILT’s onsite laboratory to ensure quality control.
Liquid Chromatography Applications
Liquid chromatography is essential for:
- Cannabinoid quantification in CBD beverages
- Sweetener and preservative analysis
- Colorant stability testing
- Functional ingredient verification
LC workflows require closures that resist chemical degradation and maintain seal integrity under varying solvent systems.
ILT’s 9mm bonded screw caps are manufactured from polypropylene and offered with multiple liner configurations, including silicone/PTFE and LCMS certified silicone/PTFE. These caps are designed to:
- Support chromatography workflows
- Provide secure screw-cap sealing
- Offer liner configurations tailored to specific testing needs
For labs working with aggressive mobile phases or complex botanical extracts, liner compatibility becomes a key factor in preventing analyte loss or contamination.