Fertilizer Analysis

Continuous Flow Analyzers

Over the last 60 years, SEAL Analytical has solidified its reputation as the world’s leading provider of environmental analyzers, fertilizer analyzers, and sample preparation instruments.

With an 8-minute run startup time, our segmented flow analyzers can deliver over 60 sample results for N, P, and K per hour, with the ability to analyze finished fertilizer and raw materials on the same system. Up to six parameters can be analyzed in parallel from the same sample.

 Choose from a variety of SEAL Multi-Test Manifolds that are purpose-built for fertilizer analysis. Multi-test methods allow you to measure multiple parameters using a single analytical cartridge (or manifold). When moving from one test to the next, only the reagents and the colorimeter filter need to be changed, saving time and money. Multi-test methods are ideal for laboratories with small to medium workloads or where certain tests are required only occasionally.

Discrete Analyzers

SEAL discrete analyzers are compact in size and ideal for fertilizer applications that do not require in-line high-temperature digestions. These analyzers bring additional automation compared to continuous flow analyzers, bringing true “walkaway” operation to your lab. These features include automatic standard preparation and automatic pre- and post-dilution capabilities.

SEAL discrete analyzers are supported by an extensive library of methods designed specifically for environmental applications, including those that are essential to fertilizer analysis. All SEAL discrete analyzers come equipped out of the box to run our full environmental methods list, without any hardware changeovers required.

Methods for AOAC Compliance

SEAL Analytical provides solutions that adhere to AOAC-approved methods for nutrient analysis, including critical parameters such as nitrogen, phosphorus, potassium, pH, and more. Our discrete and continuous flow analyzers, along with robotic handling systems and digestion equipment, ensure accuracy and reproducibility for soil, water, and fertilizer testing. SEAL systems streamline AOAC-compliant processes, offering high throughput and reliability to meet the needs of laboratories performing regulated nutrient analysis.

To explore our AOAC-compliant methods or discuss how our systems can enhance your lab’s performance, contact your nearest SEAL team for expert support and guidance.