工作場所空氣中鄰苯二甲酸酐測定填充柱，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，氨水

工作場所空氣中鄰苯二甲酸酐測定填充柱
工作場所空氣中鄰苯二甲酸酐測定填充柱 詳細信息：

應用：GBZ/T 300.118-2017 工作場所空氣有毒物質(zhì)測定 第118部分：乙酸酐、馬來酸酐 和鄰苯二甲酸酐
GBZ/T 160.60-2004 工作場所空氣有毒物質(zhì)測定 酸酐類化合物

浩瀚色譜（山東）應用技術開發(fā)有限公司研發(fā)空氣中鄰苯二甲酸酐用玻璃纖維濾紙采集,隨即放入預先裝有2 ml丙酮的樣品瓶中,蓋塞,搖勻后用聚丁二酸乙醇酯:磷酸:101 硅烷化白色擔體柱氣相色譜(FID)測定。鄰苯二甲酸酐濃度在0~200μg/ml范圍內(nèi)線性關系良好,線性方程y=8.9+12.6x(r=0.999 9。檢出限為0.39μg/ml,若采集30 L空氣樣品,則低檢出濃度分別為0.026 mg/m3,平均加標回收率99.7%~101.4%,相對標準偏差在1.2%~3.7%。本方法適用于工作場所空氣中鄰苯二甲酸酐濃度的測定。

工作場所空氣中鄰苯二甲酸酐測定填充柱  測試譜圖：


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: