TOC Analysis of Fertilizer Using the Lotix LSS Boat Module

Abstract
This study evaluates the Lotix Solid Sampler (LSS) Boat Module’s ability to analyze fertilizer for the presence of Total Organic Carbon (TOC). Accuracy and system precision, reported as percent Relative Standard Deviation (%RSD) of triplicate calibration standards, was used to evaluate the instrument’s performance.

The LSS Boat Module is capable of analyzing liquid TOC samples, as well as difficult matrices like soil, sand, sediment,
sludge, and particulate-laden liquid.

Introduction
The analysis of Total Organic Carbon (TOC) can be difficult due the large variety of sample matrices. Large particulates can cause problems within TOC instruments such as blocked valves and tubing, leading to significant consumable costs and unnecessary downtime. The LSS Boat Module was designed to work in conjunction with the Lotix High-Temperature TOC Combustion Analyzer to overcome these challenges. The module can easily analyze a variety of difficult liquid and solid samples over a wide carbon concentration range with exceptional accuracy and precision.

Fertilizer is a traditionally challenging TOC sample matrix. Determination of TOC content in fertilizer is used
to obtain a nitrogen to carbon ratio, which in turn is used to measure a fertilizer’s effectivity

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