摘要
本文采用顶空-固相微萃取-气相色谱联用技术测定了氨苄青霉素中丙酮和异丙醇残留量。使用自制萃取头（苯-丙共聚物与SE-30复合），萃取时间为50min，温度为60℃，2m×3mmi．d．不锈钢色谱柱、内填充10％聚丁二酸乙二醇酯／202酸洗红色担体。丙酮测定结果的相对标准偏差（RSD）为0．38％，在0．11～20μg·g^-1范围时，色谱峰面积与质量浓度之间相关系数（r^2）为0．9897，回收率为98．5％～101％；异丙醇测定结果相对标准偏差（RSD）为0．56％，在0．17～20μg·g^-1范围时，色谱峰面积与质量浓度之间的相关系数（r^2）为0．9902，回收率为97．9％～102％。
The phenylethylene - ethyl acrylate copolymer combined with polymethysiloxane to make SPME extraction coating. The method of HS- SPME- GC was used to determine residual acetone and isopropanol in acillin.Absorption time was 50min, temperature was 60℃. 2m × 3mm i.d. GC colum packed with 10% polyethylene glycol succinate/202 pickling red support.There were all good linear relationships between the concentration and the relative peak areas of acetone and isopropanol. For acetone, in the range of 0.11 - 20μg· g^- 1 the corrlation coefficient （ r2 ） was o. 9897, the relative standard deviation was 0.38 and the recoveries were 98.5% - 101%. For isopropanol, in the range of 0.17 20μg· g^-1, the corrlation coefficient（ re） was 0.9920, the relative standard deviation was 0.56 and the recoveries were 97.9% - 102%.
出处
《化学工程师》
CAS
2006年第4期22-24,共3页
Chemical Engineer
