Method basis
According to the Gas Chromatography Method HJ/T 35-1999 for the Determination of Acetaldehyde in Exhaust Gas from Fixed Pollution Sources.
2. Method principle
Sampling with sodium bisulfite solution, acetaldehyde undergoes nucleophilic addition reaction with sodium bisulfite to generate stable alpha hydroxysulfonate in neutral solution. Then, acetaldehyde is released by co heating in dilute alkaline solution, separated by chromatographic column, and determined by hydrogen flame ionization detector. The retention time of the standard sample chromatographic peak is qualitative, and the peak height is quantitative.
Name: Shimadzu Fill Column
Specification: 2m * 3 * 4mm, 80-100 mesh
Model: 20% pEG20M/GCS880 AW DMCS
Zui high temperature: 240 ° C
Application: HJ-T 35-1999 Determination of Acetaldehyde in Fixed Source Exhaust Gas by Gas Chromatography
Applicable to:
Agilent 490 online/portable, 48905890689088608890
Shimadzu GC-14C, GC-2010，GC-2014，GC-2030
Thermo Fisher Scientific 1310130016101600
Varian 3800 Series
Brooke PE580590680690
Panno A90, Fuli GC9790, Huaai, Tianrui, Tianmei, GC7900， Chuanyi, Beifen Ruili, Dongxi Electronics, Lunan Ruihong, Jiedao/Kexiao
This standard is applicable to the determination of acetaldehyde in organized and unorganized emissions from fixed pollution sources.
When the sampling condition is 100L and the injection condition is 1 μ l, the detection limit of acetaldehyde is 4 × 10-2mg/m3, and the quantitative determination concentration range of acetaldehyde is 0.14mg/m3 to 30mg/m3
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed a Shimadzu chromatography column for the determination of acetaldehyde in exhaust gas from fixed pollution sources. The column has high column efficiency, good separation, no interference from methanol, ethanol, and acetone, good separation, symmetrical peak shapes, and satisfactory results.
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方法依據
依據《固定污染源排氣中乙醛的測定 氣相色譜法HJ/T 35-1999》。
2.方法原理
用亞硫酸氫鈉溶液采樣，乙醛與亞硫酸氫鈉發(fā)生親核加成反應，在中性溶液中生成穩(wěn)定的a- 羥基磺 酸鹽，然后在稀堿溶液中共熱釋放出乙醛，經色譜柱分離，用氫火焰離子化檢測器測定，以標準樣品色 譜峰的保留時間定性，峰高定量。
名稱：島津填充柱
規(guī)格：2m*3*4mm，80-100目
型號：20%pEG20M/GCS880 AW DMCS
zui高溫度：240°C
應用：HJ-T 35-1999 固定污染源排氣中乙醛的測定 氣相色譜法
適用于：
安捷倫490在線/便攜，4890,5890,6890,7820,7890,8860,8890
島津GC-14C，GC-2010，GC-2014，GC-2030
賽默飛1310,1300,1610,1600
瓦里安3800系列
布魯克PE580,590,680,690
磐諾A90，福立GC9790，華愛，天瑞，天美，GC7900，川儀，北分瑞利，東西電子，魯南瑞虹，捷島/科曉
本標準適用于固定污染源有組織排放和無組織排放的乙醛測定。
當采樣條件為100L，進樣條件為1μl時，乙醛的檢出限為4×10-2mg/m3，乙醛的定量測定濃度范圍為0.14mg/m3～30mg/m3
浩瀚色譜（山東）應用技術開發(fā)有限公司，研制的《固定污染源排氣中乙醛的測定島津色譜柱》，柱效高，分離好，甲醇，乙醇，丙酮均不干擾，分離良好，峰型對稱，結果滿意。
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