固定相：苯乙烯、二乙烯苯等共聚物

粒度：80-100目/60-80目
材質(zhì)：不銹鋼

規格：2m*3mm

應用：分析高沸點(diǎn)化合物所需時(shí)間短、還可分離正丙醇—特丁醇

滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司，采用頂空氣相色譜法測定了氯乙烯生產(chǎn)過(guò)程產(chǎn)生的鹽酸溶液中的乙炔和氯乙烯.使用氫氧化鈉將試樣中的氯化氫中和,從而消除其在氣相色譜分析乙炔和氯乙烯中的影響.頂空平衡溫度為35 ℃,平衡時(shí)間為45 min,色譜柱為填充了GDX-202固定相的2 m×3 mm i.d.不銹鋼柱,柱溫140 ℃.頂空氣體進(jìn)樣量為1 mL.以外標法定量,乙炔含量測定結果的相對標準偏差為0.85%;當其含量為30.0 μg/g～150 μg/g時(shí),回收率為98.9%～103%.氯乙烯含量測定結果的相對標準偏差為1.4%;當其含量為20.0 μg/g～100 μg/g時(shí),回收率為98.8%～102%.

GDX-202不銹鋼填充柱 圖片：



GDX-202 stainless steel packed column
GDX-202 stainless steel packed column Details:

Stationary phase: copolymers such as styrene and divinylbenzene
Particle size: 80-100 mesh / 60-80 mesh
Material: Stainless steel
Specification: 2m*3mm
Application: Analysis of high boiling point compounds takes a short time and can also separate n-propanol-butanol

Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. used apex air phase chromatography to determine acetylene and vinyl chloride in hydrochloric acid solution produced by vinyl chloride production. Neutralization of hydrogen chloride in the sample was carried out using sodium hydroxide, thereby eliminating The effect of acetylene and vinyl chloride was analyzed by gas chromatography. The headspace equilibrium temperature was 35 °C, the equilibrium time was 45 min, and the column was a 2 m × 3 mm id stainless steel column filled with GDX-202 stationary phase. The column temperature was 140 °C. The head air injection volume is 1 mL. The external standard method quantifies the relative standard deviation of the acetylene content measurement to 0.85%; when the content is 30.0 μg/g to 150 μg/g, the recovery rate is 98.9% to 103%. The relative standard deviation of the determination of vinyl chloride content is 1.4%; when the content is 20.0 μg / g ~ 100 μg / g, the recovery is 98.8% ~ 102%.

GDX-202 stainless steel packed column