New Pre-cleaned and Certified TOC Sample Vial Available on WelchLab

Introduction

In the realm of high-sensitivity analytical chemistry, the integrity of the sample container is as critical as the instrument itself. Total Organic Carbon (TOC) analysis requires stringent control over background contamination to ensure that measurements reflect the true organic content of the sample rather than leaching from the vessel.

WelchLab is pleased to announce the addition of our new Pre-cleaned and Certified 40-mL TOC Sample Vials, specifically engineered to meet the rigorous demands of pharmaceutical, environmental, and clinical laboratories.

Uncompromising Purity and Certification

These vials undergo a proprietary, multi-stage cleaning process and are rigorously tested to ensure a TOC background of <10 ppb. This industry-leading specification minimizes interference during trace-level analysis, directly enhancing the reproducibility and accuracy of your results. Each batch is accompanied by a Product Certificate, providing the documented traceability required for compliance-driven environments.

Optimized for Regulatory Compliance

The WelchLab TOC vials are designed for a broad spectrum of critical applications, ensuring seamless integration into standard laboratory workflows:

• USP <643> Method Testing: Ideal for the determination of TOC in bulk water for injection and purified water.
• Cleaning Validation: Ensures that equipment surfaces are free from residual active pharmaceutical ingredients (APIs) and detergents.
• Storage of Validation Standards: Maintains the stability of low-level TOC standards without degradation or contamination.
• Purified Water Analysis: Essential for monitoring high-purity water systems in semiconductor and pharmaceutical manufacturing.

Technical Specifications and Construction

Precision manufacturing ensures that every component—from the borosilicate glass to the bonded septa—contributes to the vial's superior performance. The use of bonded septa is particularly critical, as it eliminates the risk of the septa falling into the vial or being pushed through by the autosampler needle, a common source of mechanical failure and contamination.

Key Features and Benefits

• Pre-assembled Convenience: Vials arrive fully assembled with closures and protective dust covers, reducing manual handling and the risk of ambient contamination before use.  
• Advanced Process Control: High-level quality control protocols are applied throughout the manufacturing process to maintain the low TOC threshold.  
• Broad Compatibility: These vials are designed to be compatible with a wide range of TOC analyzers, such as Sievers 900.
• Protective Dust Covers: Each vial is equipped with a dust cover to protect the septa surface from laboratory dust and vapors prior to injection.

Ordering Information