Orthophosphate, pyrophosphate, trimetaphosphate, and tripolyphosphate in shrimp applying a Dose-in Gradient

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The determination of orthophosphate and polyphosphates is an important quality control for shrimp. The Dose-in Gradient setup accelerates phosphate separation by adding a stronger eluent. The separation of the phosphates is achieved by increasing the carbonate concentration while maintaining the same hydroxide content.