OI Analytical

OI Analytical designs and manufactures instrumentation for chemical analysis. Data from our analytical instruments serve as the basis for informed decisions affecting human health and safety, environmental protection, industrial operations, and product quality.

Our company vision is Opportunity through Innovation®. We strive to provide innovative products and services that enable our customers to pursue new opportunities and tackle challenging problems in diverse fields of science and industry.

The company was first organized in 1963 and entered the analytical instrument business in 1969. On October 31, 2011 OI Analytical became a Xylem brand and operates as part of the Xylem Analytics business unit. OI Analytical is located in College Station, Texas. A second facility producing GC-based air monitoring systems and mass spectrometry instruments is based in Birmingham, Alabama. OI Analytical is an ISO-9001 certified organization that operates under a Quality Management System (QMS) to continuously improve the quality of our products, services, and business processes.

About Xylem Analytics & Xylem

OI Analytical is part of Xylem Analytics and a leading provider of water measurement solutions.

Xylem Analytics’ global brands have been leaders in the water and laboratory instrumentation market for decades, and are relied upon every day across more than 150 countries. Working in true partnership with our clients, we listen, learn and adapt to individual needs, offering deep application expertise built upon our long history of innovation in instruments and services. Our solutions for analysis, measurement and monitoring help enable many of today’s environmental monitoring, modern laboratories and industrial processes, and provide our customers the trusted and high performing solutions they need to succeed.

Xylem Analytics is part of Xylem Inc., a global company focused on solving the world’s most challenging and fundamental water issues. As accurate analysis is crucial to the water industry, Xylem Analytics taps its diverse product brands for leadership in that field and beyond, providing the best laboratory and field monitoring instrumentation across a wide variety of industries.

Drinking Water Analysis

OI Analytical has been a leading provider of instrumentation for drinking water analysis since 1978. We understand the challenges of keeping our drinking water sources clean and safe.  With a history of innovation that includes a TOC analyzer designed for the International Space Station, you can trust that our systems will give you accurate, dependable results for a variety of parameters including total organic carbon (TOC), nutrient analysis, and water quality analysis.

Analysis for Environmental Applications

It’s no secret the world’s natural resources are limited. We understand the immense threat pollution poses to the environment and safety of all living organisms. That’s why we task ourselves with providing you with accurate, dependable analytical instrumentation needed to accurately analyze a wide range of chemical elements in the environment using USEPA-approved methods.

Food and Beverage

Accurate analytical testing is essential to ensuring that food and beverage products consistently meet consumers’ expectations for quality and comply with regulatory standards. A wide variety of sample types are tested for protein, fat, sulfur compounds, TVBN (total volatile nitrogen base), alcohol content, and more. Trusted by companies around the world for accurate, reliable results, OI Analytical offers a complete line of accurate, dependable, cost-effective instrumentation for food and beverage analyses and the expertise to help with challenging samples.


Measuring cyanide available for leaching precious metal ores containing copper and metallic sulfides is no easy task. As copper complexes with cyanide, it reduces the cyanide available for leaching. Understanding that commonly used titration methods did not present an accurate picture for clear cyanide analysis, OI Analytical designed an instrument using the gas-diffusion amperometry technique. This method has been proven to be free of interferences from copper and metallic sulfides in precious metal solutions, providing the mining industry with a far more reliable solution to cyanide analysis.

Petroleum Analysis

At OI Analytical, we understand the ability to detect and measure sulfur contaminants in gases is critical for efficient operation and product quality control. That’s why we’ve been been working with industry experts since the beginning to provide practical laboratory solutions for petroleum analysis. The result: instrumentation built specifically for superior selectivity and sensitivity of sulfur compounds in an array of petroleum products.

Analysis for Wastewater Applications

With a rising population rate, industrial growth, tighter limits on nutrient pollution and other contaminants, budget cuts, and other factors, wastewater treatment has become increasingly challenging. What was once considered a local concern has grown into a national issue. Wastewater treatment facilities must adhere to stringent discharge standards requiring pollutant removal at very low levels, while environmental and financial sustainability goals require minimizing energy and resource consumption. Facilities with National Pollutant Discharge Elimination System (NPDES) permit must adhere to strict standards for the amount of pollutants they can discharge. OI Analytical’s solutions for Wastewater Treatment and Water Resource Recovery facilities can help you stay in compliance and improve process efficiency while reducing operating and maintenance costs.

SRA Instruments

With over 30 years of experience in the field of gas chromatography and micro gas chromatography analysis, SRA Instruments has developed a highly competitive know-how that enables us to offer dedicated solutions to meet the analytical needs of Industry, Research and Environment.

For detailed information: https://www.oico.com/