| | 加工定制：是 | | 品牌：翔鹰技术 | | 型号：XiangyingGC7990plus | |
| | 测量范围：ppm | | 测量对象：聚乙烯醇中有机溶剂残留量 | | 控温范围：450 ℃ | |
| | 功率：2000 w | | 尺寸：480 mm | | 重量：45 kg | |
| | 顶空进样器：药用聚乙烯醇中有机溶剂残留量 | | 热解析仪：植物油 | | *：环氧乙烷 | |
| | 6号溶剂：脂肪酸甲酯 | | 液化气：二甲醚 | | | |
Polyvinyl alcohol (PVA) is composed of poly vinyl acetate by alkali catalyzed alcoholysis of must, in pharmaceutical preparations for making micro capsule material of microcapsule, membrane agent and coating agent into membrane materials, a wide range of uses, market prospects. At present, the domestic manufacturers are using industrial raw materials, does not meet the regulatory requirements, so the industrial grade PVA purification, production of pharmaceutical grade standard PVA is necessary. Due to safety and environmental protection
Tengzhou City Xiangying Analysis Technology Co., Ltd. to establish a medicinal polyvinyl alcohol in organic solvent residual phase chromatography method was XiangyingGC7990plus headspace capillary gas determination method. Methods: the chromatographic column was a capillary column (30.0m * 530 m * 1 m), and the FID detector. The temperature of the gasification chamber is 200 degrees Celsius, the temperature of the detector is 220, and the carrier gas is nitrogen. The column temperature is 60 degrees C to keep 15min. Results: methyl acetate, methanol and ethanol were completely separated in the medical polyvinyl alcohol. The results of the 3 batches of samples were in accordance with the regulations. Conclusion: the method is simple, sensitive and accurate.
聚乙烯醇(简称PVA)是由聚醋酸乙烯酯经碱催化醇解制得,在医药制剂中用于制作微型胶囊的囊材、膜剂和涂膜剂的成膜材料等,用途广泛,市场前景大。目前国内厂家均使用工业级原料,不符合法规要求,因此对工业级PVA进行精制提纯,生产药用级标准的PVA是必要的。由于安全性和环保方面
滕州市翔鹰分析技术有限公司建立药用聚乙烯醇中有机溶剂残留量XiangyingGC7990plus顶空毛细管气相色谱法测定方法。方法:色谱柱为毛细管柱(30.0m×530μm×1μm),FID检测器。气化室温度200℃,检测器温度220℃,载气为氮气。柱温为60℃保持15min。结果:药用聚乙烯醇中乙酸甲酯、甲醇、乙醇得到完全分离,3批样品测定结果符合规定。结论:该方法简单、灵敏、准确。
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