聚丁二酸乙醇酯:磷酸:101 硅烷化白色担体 工作场所空气中邻苯二甲酸酐测定填充柱

工作场所空气中邻苯二甲酸酐测定填充柱，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，天然气，变压器油，多氯联苯，植物油，增塑剂，塑化剂，氨水

工作场所空气中邻苯二甲酸酐测定填充柱
工作场所空气中邻苯二甲酸酐测定填充柱 详细信息：

应用：GBZ/T 300.118-2017 工作场所空气有毒物质测定 第118部分：乙酸酐、马来酸酐 和邻苯二甲酸酐
GBZ/T 160.60-2004 工作场所空气有毒物质测定 酸酐类化合物

浩瀚色谱（山东）应用技术开发有限公司研发空气中邻苯二甲酸酐用玻璃纤维滤纸采集,随即放入预先装有2 ml丙酮的样品瓶中,盖塞,摇匀后用聚丁二酸乙醇酯:磷酸:101 硅烷化白色担体柱气相色谱(FID)测定。邻苯二甲酸酐浓度在0~200μg/ml范围内线性关系良好,线性方程y=8.9+12.6x(r=0.999 9。检出限为0.39μg/ml,若采集30 L空气样品,则低检出浓度分别为0.026 mg/m3,平均加标回收率99.7%~101.4%,相对标准偏差在1.2%~3.7%。本方法适用于工作场所空气中邻苯二甲酸酐浓度的测定。

工作场所空气中邻苯二甲酸酐测定填充柱  测试谱图：


Packed column for determination of phthalic anhydride in workplace air
Packed column for the determination of phthalic anhydride in workplace air Details:

Chromatographic column: 2m×4mm, polysuccinate:phosphoric acid:101 Silanized white support = 5:1.5:100;
b) Column temperature: 175℃;
c) Temperature of gasification chamber: 220℃;
d) Test room temperature: 220℃;
e) Carrier gas (nitrogen) flow: 25mL/min.
Application: GBZ/T 300.118-2017 Determination of Toxic Substances in Workplace Air Part 118: Acetic Anhydride, Maleic Anhydride and Phthalic Anhydride
GBZ/T 160.60-2004 Determination of Toxic Substances in Workplace Air - Acid Anhydrides

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. developed phthalic anhydride in the air to collect glass fiber filter paper, then put it into a sample bottle pre-filled with 2 ml of acetone, cap it, shake it well, and use polysuccinic acid ethanol Esters: Phosphoric acid: 101 Determination by gas chromatography (FID) on a silanized white support column. The phthalic anhydride concentration has a good linear relationship in the range of 0~200μg/ml, the linear equation y=8.9+12.6x(r=0.999 9. The detection limit is 0.39μg/ml, and if 30 L air samples are collected, the lowest The detected concentrations were 0.026 mg/m3, the average recovery rates were 99.7%-101.4%, and the relative standard deviations were 1.2%-3.7%. This method is suitable for the determination of phthalic anhydride concentration in workplace air.

Packed column for determination of phthalic anhydride in workplace air Test spectrum: