藥用聚酯瓶中乙醛測定氣相色譜儀，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦?fàn)t煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，過氧化物

藥用聚酯瓶中乙醛測定氣相色譜儀
藥用聚酯瓶中乙醛測定氣相色譜儀 詳細(xì)信息：

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司分析藥用聚酯（PET）瓶中乙醛測定法現(xiàn)狀,并對其進(jìn)行標(biāo)準(zhǔn)提高。方法:采用優(yōu)化后的HS-GC法測定藥用PET瓶中乙醛殘留量。頂空平衡溫度40℃,定量環(huán)溫度50℃,傳輸線溫度60℃,對照品頂空平衡時間30 min,樣品頂空平衡時間8 h,進(jìn)樣體積1 m L;色譜柱HH-Wax（30 m×0.320 mm×0.25μm）,柱溫50℃,進(jìn)樣口溫度200℃,檢測器溫度250℃,載氣氮氣,柱流量1.5 m L·min^-1,分流比30∶1。結(jié)果:采用優(yōu)化后的乙醛測定方法,乙醛對照品進(jìn)樣量在0.2～3.0μg范圍內(nèi)呈良好線性關(guān)系,r=0.999 6;高、中、低加樣回收率分別為98.6%、106.3%和100.4%。優(yōu)化前后乙醛測定法測得乙醛含量結(jié)果無顯著性差異。結(jié)論:優(yōu)化提高后的乙醛測定法能快速、準(zhǔn)確地測定藥用PET瓶中乙醛含量,該研究為乙醛測定法的標(biāo)準(zhǔn)提高以及藥用PET瓶的質(zhì)量控制提供指導(dǎo)意義。 

藥用聚酯瓶中乙醛測定氣相色譜儀  測試譜圖：


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: