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Recently, the pharmaceutical industry has been faced with glass quality challenges that have resulted in many products being recalled from the market. Monitoring levels of soluble silica in solution is critical because silica is the primary component of glass containers used in the pharmaceutical industry. Given this recent industry-wide increase in glass-related problems, assays capable of detecting glass degradation before glass-related particles are visible in solution have practical significance. A rapid assay to detect the soluble form of silica is presented here. The method presented will enable earlier detection of a formulation and container incompatibility instead of waiting until glass-related particles are visible in solution.