GC- 药用聚酯瓶中乙醛测定气相色谱仪

药用聚酯瓶中乙醛测定气相色谱仪，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，增塑剂，塑化剂，过氧化物...

药用聚酯瓶中乙醛测定气相色谱仪
药用聚酯瓶中乙醛测定气相色谱仪 详细信息：

浩瀚色谱（山东）应用技术开发有限公司分析药用聚酯（PET）瓶中乙醛测定法现状,并对其进行标准提高。方法:采用优化后的HS-GC法测定药用PET瓶中乙醛残留量。顶空平衡温度40℃,定量环温度50℃,传输线温度60℃,对照品顶空平衡时间30 min,样品顶空平衡时间8 h,进样体积1 m L;色谱柱HH-Wax（30 m×0.320 mm×0.25μm）,柱温50℃,进样口温度200℃,检测器温度250℃,载气氮气,柱流量1.5 m L·min^-1,分流比30∶1。结果:采用优化后的乙醛测定方法,乙醛对照品进样量在0.2～3.0μg范围内呈良好线性关系,r=0.999 6;高、中、低加样回收率分别为98.6%、106.3%和100.4%。优化前后乙醛测定法测得乙醛含量结果无显著性差异。结论:优化提高后的乙醛测定法能快速、准确地测定药用PET瓶中乙醛含量,该研究为乙醛测定法的标准提高以及药用PET瓶的质量控制提供指导意义。 

药用聚酯瓶中乙醛测定气相色谱仪  测试谱图：


Gas chromatograph for the determination of acetaldehyde in medicinal polyester bottles
Gas chromatograph for the determination of acetaldehyde in pharmaceutical polyester bottles Details:

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. analyzed the current status of acetaldehyde determination methods in pharmaceutical polyester (PET) bottles, and improved its standards. Methods: The optimized HS-GC method was used to determine the acetaldehyde residues in pharmaceutical PET bottles. The headspace equilibrium temperature was 40 °C, the loop temperature was 50 °C, the transfer line temperature was 60 °C, the headspace equilibrium time of the reference substance was 30 min, the sample headspace equilibrium time was 8 h, and the injection volume was 1 mL; ×0.320 mm×0.25 μm), the column temperature was 50 °C, the inlet temperature was 200 °C, the detector temperature was 250 °C, the carrier gas was nitrogen, the column flow rate was 1.5 mL·min-1, and the split ratio was 30:1. RESULTS: Using the optimized acetaldehyde determination method, the injection amount of acetaldehyde reference substance showed a good linear relationship in the range of 0.2-3.0 μg, r=0.999 6; the high, medium and low sample recovery rates were 98.6% and 106.3 respectively. % and 100.4%. There was no significant difference in the acetaldehyde content measured by the acetaldehyde determination method before and after the optimization. Conclusion: The optimized and improved acetaldehyde determination method can quickly and accurately determine the content of acetaldehyde in pharmaceutical PET bottles.

Gas chromatograph for the determination of acetaldehyde in pharmaceutical polyester bottles. Test spectrum: 



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