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Determination of sodium thiocyanate in milk by HPLC

Xinzhong Zhang

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Abstract

A method to determinate sodium thiocyanate in milk by RP-HPLC was established.The separation was performed on Agela-ASB C18 column(250mm×4.6mm,5 μm) with the mobile phase of phosphoric acid solution(0.2%,V/V,A):methanol(B)=95:5.The detection wavelength was 218 nm.The flow rate was 0.8 mL/min and the column temperature was 30 ℃±2℃.Good linearity was showed within the range of 5～500 mg/L respectively,r0.9995.The average recoveries was larger than 90.0% respectively,RSD10%.The method was simple,rapid and reliable for the simultaneous determination of sodium thiocyanate in milk with the LOD of 0.2 mg/kg and the determination range of 0.5～50 mg/kg.

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What this paper is about

A method to determinate sodium thiocyanate in milk by RP-HPLC was established.The separation was performed on Agela-ASB C18 column(250mm×4.6mm,5 μm) with the mobile phase of phosphoric acid solution(0.2%,V/V,A):methanol(B)=95:5.The detection wavelength was 218 nm.The flow rate was 0.8 mL/min and the column temperature was 30 ℃±2℃.Good linearity was showed within the range of 5～500 mg/L respectively,r0.9995.The average recoveries was larger than 90.0% respectively,RSD10%.The method was simple,rapid and reliable for the simultaneous determination of sodium thiocyanate in milk with the LOD of 0.2 mg/kg and the determination range of 0.5～50 mg/kg.

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Available abstract

A method to determinate sodium thiocyanate in milk by RP-HPLC was established.The separation was performed on Agela-ASB C18 column(250mm×4.6mm,5 μm) with the mobile phase of phosphoric acid solution(0.2%,V/V,A):methanol(B)=95:5.The detection wavelength was 218 nm.The flow rate was 0.8 mL/min and the column temperature was 30 ℃±2℃.Good linearity was showed within the range of 5～500 mg/L respectively,r0.9995.The average recoveries was larger than 90.0% respectively,RSD10%.The method was simple,rapid and reliable for the simultaneous determination of sodium thiocyanate in milk with the LOD of 0.2 mg/kg and the determination range of 0.5～50 mg/kg.

Key concepts: Sodium thiocyanate, Chromatography, Phosphoric acid, Chemistry, Thiocyanate, High-performance liquid chromatography, Sodium, Methanol

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