科研之友
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摘要
In current, for the determination of melamine content in milk products by high performance liquid chromatography (HPLC) in GB (Chinese standard), the sample pretreatment is all manual operation, and its pretreatment speed is only 1-2 samples per hour. Therefore, a new automatic solid phase extraction enrichment system (ASPEES) based on the flow-injection analysis was established. The system's pretreatment speed had attained 10 samples per hour. The method has the advantages of rapid, small pollution and high automation. Linear range of the method was in the range of 0.2-50 mg/L (r=0.9993), relative standard deviation was less than 3.9%, detection limit was 0.1 mg/L, recovery was 95.4%-108.1%. It can be used as a new complement for the GB method.
- 出版日期2012-2
- 单位四川大学
