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Chromatography
Autosamplers with a range of cost and sample preparation capabilities Select the level of automation your chromatography application requires from a range of autosamplers, which include high-precision, low-cost, metal-free, and high-sample-volume autosamplers and manual injectors. View More View Less
Vials, vial inserts, septa, and caps/closures with or without septa for use with autosamplers and autosampler vials; includes a variety of sizes, configurations, material compositions, and closure types. Autosampler vials hold samples that will be injected from an autosampler into a chromatograph or similar analyzer. A needle is used to pierce the cap and withdraws the sample from the vials. Some autosamplers can also dilute or otherwise manipulate the contents of the vials. Vials are chosen by diameter, height, thread finish, and other parameters. Selection also depends on analysis type, analytical platform, and sample availability. Although 2mL vials are the most common, vials are available with capacities from 15 to 60μL. Autosampler vials are usually made from clear or amber glass, both of which are highly inert. Amber glass helps protect more sensitive samples from exposure to UV light and radiation. Vial inserts are used to reduce the capacity of the vial to accommodate smaller samples. Typically 150 to 400µL in volume, they may be made of glass, plastic, or a combination of materials. Closure options include those with and without septa, snap caps, screw caps, and crimp top caps. Vial caps and septa help prevent leakage and sample loss due to evaporation. Factors that affect the choice of closure include: Septa compatibility with sample ‒ chemical compatibility varies based on the solvent concentration, molecular weight, and temperature Septa and cap compatibility ‒ septa that are too thick may prevent proper cap fitting Crimp vs. screw cap closures Screw caps are more often used for LC and LC/MS Crimp caps work well for GC and GC/MS applications, help avoid sample tampering, and are recommended for working with volatile compounds View More View Less
Take advantage of the collective power of chromatography Whether you are working to achieve the next breakthrough in research or looking to have full confidence and precision in your QA/QC routine results, Our chromatography solutions can offer you a complete workflow solution. Drive innovation, improve productivity, and achieve operational excellence to deliver a maximum return on your investment. With the largest portfolio of chromatography instruments, software solutions, columns and consumables, we remain a steadfast and committed partner in your endeavor to improve the world around us. View More View Less
Syringes for manual or autosampler injections, in a variety of sizes, needle gauges, point styles, and terminations; includes electronic and manual gas tight syringes, HPLC general syringes, and replacement parts and accessories. Choose from leading brands for analytical gas and liquid syringes. Specialty syringes designed for unique applications are also available. View More View Less
Our range of innovative ion chromatography (IC) instruments provide innovative technology and unparalleled robustness. Whether you handle just a few samples or a heavy workload, routine or challenging analyses, we have an ion exchange chromatography system for your performance and affordability requirements. Our offerings include plug-and-play workhorse ion chromatography systems, systems featuring electrolytic Reagent-Free Ion Chromatography (RFIC) capabilities, high-pressure systems, IC columns and more. View More View Less
