GB/T 17931-2018-PQ填充柱 瓶用聚对苯二甲酸乙二酯（PET）树脂中乙醛测定

瓶用聚对苯二甲酸乙二酯（PET）树脂中乙醛测定，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，变压器油，多氯联苯，植物油，增塑剂，塑化剂，氨水，氨气

瓶用聚对苯二甲酸乙二酯（PET）树脂中乙醛测定
瓶用聚对苯二甲酸乙二酯（PET）树脂中乙醛测定 详细信息：

名称：填充柱
固定相：乙基乙烯苯-二乙烯苯共聚物
规格：2m*6mm
型号：Porapak Q
粒度：60-80目
应用：GB/T 17931-2018瓶用聚对苯二甲酸乙二酯（PET）树脂

浩瀚色谱（山东）应用技术开发有限公司采用顶空气相色谱法对食品包装用PET树脂及其成型品中乙醛含量进行分析,并讨论了样品处理及测试过程中各种条件对测定结果的影响。优化的条件为:样品颗粒度40~60目（0.3~0.45mm）,有氮气保护,平衡温度150℃,平衡时间60min。此方法的检出限为0.1ug/g,相对标准偏差（n=5）为2.62%,加标回收率达到95.0%。该方法适用于食品包装用PET树脂及各种成型品中乙醛含量的测定。 

瓶用聚对苯二甲酸乙二酯（PET）树脂中乙醛测定  测试谱图：




Determination of acetaldehyde in polyethylene terephthalate (PET) resin for bottles
Determination of acetaldehyde in polyethylene terephthalate (PET) resin for bottles Details:

Name: Packed Column
Stationary Phase: Ethylvinylbenzene-divinylbenzene copolymer
Specifications: 2m*6mm
Model: Porapak Q
Granularity: 60-80 mesh
Application: GB/T 17931-2018 Polyethylene terephthalate (PET) resin for bottles

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses headspace gas chromatography to analyze the acetaldehyde content in PET resin for food packaging and its molded products, and discusses the influence of various conditions on the determination results during sample treatment and testing. . The optimized conditions are as follows: the particle size of the sample is 40~60 mesh (0.3~0.45mm), there is nitrogen protection, the equilibrium temperature is 150℃, and the equilibrium time is 60min. The detection limit of this method was 0.1ug/g, the relative standard deviation (n=5) was 2.62%, and the recovery rate was 95.0%. This method is suitable for the determination of acetaldehyde content in PET resin for food packaging and various molded products.

Determination of acetaldehyde in polyethylene terephthalate (PET) resin for bottles Test spectrum: