您当前的位置:首页 >  写作材料 >  煤矿 > 内容

顶空气相色谱法测定苯并三嗪衍生物YABQ的溶剂残留量

材料写作网    时间: 2021-03-18 04:09:49     阅读:


打开文本图片集

[摘要] 目的 建立顶空气相色谱法测定苯并三嗪衍生物YABQ中3种残留溶剂含量的方法。 方法 采用DB-WAX毛细管色谱柱(0.45 mm×30 mm,0.85 μm),程序升温,柱头压为4 psi(1 psi = 6.895 kPa),进样口温度为200℃,FID检测器温度为250℃,顶空进样,平衡温度为70℃,平衡时间为10 min,以DMSO为溶剂,检测残留溶剂的含量。 结果 丙酮、吡啶和四氢呋喃检测限分别为0.48、0.10、1.76 μg/mL,3种残留溶剂均能有效分离,丙酮、吡啶、四氢呋喃线性关系良好(r > 0.9996),平均回收率(n=3)分别为102.22%、99.21%、97.87%,RSD分别为0.56%、1.60%、1.09%,丙酮残留量分别为0.0676%、0.0342%、0.0833%,吡啶和四氢呋喃未检出,残留溶剂含量符合药典规定。 结论 该方法简便、快速、准确,可用于YABQ中残留溶剂的含量测定。

[关键词] 残留溶剂;丙酮;吡啶;四氢呋喃;气相色谱法

[中图分类号] R917 [文献标识码] A [文章编号] 1673-7210(2016)06(c)-0135-03

[Abstract] Objective To establish a head-space gas chromatography method for determination of three residual solvents in benzene and triazine derivatives YABQ. Methods DB-WAX capillary column (0.45 mm×30 mm, 0.85 μm) and temperature program were adopted, the stigma pressure was 4 psi(1 psi = 6.895 kPa), the inlet temperature was 200℃, the FID detector temperature was 250℃, the head-space equilibrium temperature was 70℃, the equilibrium time was 10 min, DMSO was selected as the solvent, the content of residual solvents were detected. Results The results of acetone, pyridine and tetrahydrofuran detection limits were 0.48 μg/mL, 0.10 μg/mL and 1.76μg/mL, three kinds of residual solvents could be separated, a good linear relationship (r>0.9996) of acetone, pyridine, tetrahydrofuran were showed, the average recov...

== 试读已结束,如需继续阅读敬请充值会员 ==
本站文章均为原创投稿,仅供下载参考,付费用户可查看完整且有格式内容!
(费用标准:38元/2月,98元/2年,微信支付秒开通!)
升级为会员即可查阅全文 。如需要查阅全文,请 免费注册登录会员
《顶空气相色谱法测定苯并三嗪衍生物YABQ的溶剂残留量.doc》
将本文的Word文档下载到电脑,方便收藏和打印
推荐度:

文档为doc格式

相关热搜

《顶空气相色谱法测定苯并三嗪衍生物YABQ的溶剂残留量.doc》

VIP请直接点击按钮下载本文的Word文档下载到电脑,请使用最新版的WORD和WPS软件打开,如发现文档不全可以联系客服申请处理。

文档下载
VIP免费下载文档

浏览记录