Torch choice in ICP-OES analysis is a factor in maximizing throughput for your high-matrix samples. In analytical chemistry, the reliability of your results is only as good as your sample introduction system. For labs utilizing Varian 700-ES, Vista, or Liberty II systems, the choice of torch is a critical factor in managing “difficult” samples. Standard narrow-bore torches may contribute to frequent maintenance and inconsistent data. This is especially true when dealing with high total dissolved solids (TDS) or complex environmental matrices.
The Torch PG800-13 and PG800-13L are designed to address these specific challenges. It provides the robustness needed for high-demand laboratory environments.
Agilent (Varian) 700-ES/Vista/Liberty II Axial
OEM’s P/N 2010094800 / 2010092800
The Advantage of Choosing a Torch with a 2.4mm ID Injector
Many single-piece torches utilize narrow 1.0mm or 1.5mm injectors to reduce plasma loading. Therefore, they are often prone to clogging when running high-salt or high-solid samples. The 2.4mm internal diameter of this high-solids torch provides the necessary “breathing room” for sample aerosols.
This torch choice significantly improves plasma stability and reduces matrix interferences. It does so by allowing larger droplets and higher concentrations to pass through without depositing on the injector walls. For a lab manager, this means fewer failed runs and less time spent on manual cleaning or recalibration. This is a single-piece flared-end torch:
Precision Engineering: The One-Piece Quartz Design
A single-piece torch offers alignment and leak-prevention that demountable systems often struggle to match. It is precision-crafted from high-quality quartz. This choice of torch features three concentric tubes fused into a single, perfectly aligned unit. This design eliminates the need for O-rings or manual assembly. In addition, it reduces the risk of air leaks that can destabilize the 10,000 Kelvin argon plasma.
This specific model terminates in an 8mm OD stem with a 90° bend. It ensures an exact fit for Varian axial systems. It features drop-in replacement that allows your team to get back to work immediately. No worries about alignment pins or complex installation procedures.
Why High-Solids Performance Matters
In industries such as geochemistry, wastewater management, or metallurgical analysis, samples are rarely “clean.” The ability to handle high-solids samples without sacrificing sensitivity is what separates a productive lab from one bogged down by consumables. The axial orientation of this torch choice provides the long path length required for trace-level detection, while the high-solids injector provides the physical robustness to survive the run.
Longevity and Maintenance
Investing in high-quality quartz glassware is an investment in lab uptime. While single-piece torches are often considered consumables, the thermal resistance and craftsmanship of this axial torch ensure a longer lifespan even under extreme heat. Proper maintenance—such as regular inspections for devitrification—can further extend the torch’s life, keeping your cost-per-analysis low.
Choosing the right torch isn’t just a technical necessity; it’s a strategic decision for any lab looking to maximize throughput and data integrity in the face of challenging sample matrices.
PGB manufacturers in the USA for many industries worldwide . The OEM’s choice is now available directly from Precision Glassblowing! PG800-13 and PG800-13L
