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本标准规定了酚醛树脂中游离苯酚含量的两种气相色谱测试方法。
本标准适用于酚醛树脂中游离苯酚含量的测定。
名称：毛细管柱
固定液：聚乙二醇-20M
规格：30m*0.32mm*0.25um
型号：PEG-20M
应用： 气相色谱法测定酚醛树脂中游离苯酚含量
浩瀚色谱（山东）应用技术开发有限公司建立了一种改进酚醛树脂游离酚含量的气相色谱测定方法。采用PEG-20M毛细管柱（30 m ×0.25 mm ×0.25μm）；柱温：140℃；气化室温度：205℃；检测器温度：210℃；载气流速：50 mL/min；氢气流速：30 mL/min；空气流速：300 mL/min；分流比45：1。结果显示酚醛树脂游离酚含量的线性范围是0.08～0.8 mg/mL，检出限是0.0035 mg/mL。改进的酚醛树脂游离酚含量色谱检测方法耗时短、灵敏度高。
This standard specifies two gas chromatographic test methods for free phenol content in phenolic resin.
This standard is applicable to the determination of free phenol content in phenolic resin.
Name: capillary column
Stationary solution: polyethylene glycol - 20M
Specification: 30m * 0.32mm * 0.25um
Model: PEG-20M
Application: determination of free phenol content in phenolic resin by gas chromatography
Haohan Chromatographic (Shandong) Application Technology Development Co., Ltd. has established a gas chromatographic method to improve the determination of free phenol content in phenolic resin. PEG-20M capillary column (30 m × 0.25 mm × zero point two five μ m）； Column temperature: 140 ℃; Gasification chamber temperature: 205 ℃; Detector temperature: 210 ℃; Carrier gas flow rate: 50 mL/min; Hydrogen flow rate: 30 mL/min; Air flow rate: 300 mL/min; The split ratio is 45:1. The results showed that the linear range of free phenol content in phenolic resin was 0.08 ～ 0.8 mg/mL, and the detection limit was 0.0035 mg/mL. The improved chromatographic method for the determination of free phenol content in phenolic resin has the advantages of short time consumption and high sensitivity.
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