Analytical Scientific Instruments

If you’re looking for affordable off-the-shelf parts for your liquid chromatography equipment, don’t settle for low quality. Analytical Scientific Instruments US (ASI) uses engineering expertise and manufacturing excellence to deliver replacement parts that outperform OEM parts—giving you greater value for your money.

ASI manufactures high-pressure valves and components for the analytical chemistry market—especially in the area of liquid chromatography. Whether you’re an original equipment manufacturer (OEM), distributor, or end user, we’ll apply our design and manufacturing expertise to meet your needs—on time, every time. And if you also need components that are custom-engineered to address your most pressing challenges with the utmost reliability and performance, we’ve got you covered.

Optimize Performance, Minimize Downtime

Have you ever been frustrated by the quality of the high-performance liquid chromatography (HPLC) equipment on the market? So have we. That’s why we started ASI.

Quality HPLC Products Start with Quality Design

When you choose ASI, you’re partnering with a manufacturer that has significant experience meeting the needs of scientists, support engineers, and OEMs. Based on our deep understanding of your needs, we collaborate with you to engineer, manufacture, and quality-test the very best HPLC components money can buy.

Engineering: Even the best manufacturing capabilities are no substitute for a well-designed product. That’s why we apply a rigorous engineering analysis to our products before they even reach the prototype stage. This process includes a tolerance study in which 90% of designs don’t meet our standards. The result? Only the most reliable, highest-performing products bear the ASI label—and end up in your equipment.

Manufacturing: With thoroughly tested and fully proven designs in hand, we begin the manufacturing process. This is where our substantial investment in computer-controlled machining centers, inspection equipment, and human expertise pays dividends for you. Knowing that quality is just as important to you as it is to us, we manufacture many of our products with dimensional tolerances that are equal to 1/10 of the diameter of a human hair. That means spending a bit more on manufacturing—but we think you’ll agree it’s worth it to ensure the highest levels of reliability and performance.

Quality Control: If your HPLC vendor doesn’t provide 100% inspection of all critical parts, then they’re not really doing quality control. When you use ASI parts, you can rest assured that all your valves and other fluidic devices have been inspected on every critical dimension that affects performance. In addition, every mixer assembly or check valve we ship is subjected to a final test to prove that it performs properly in tests that simulate actual chromatographic conditions.