浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司，應(yīng)用4%PEG-20M+1%KOH/GDX-401玻璃柱采用弱酸性吸收液采集無組織廢氣中的三甲胺,加入堿液后,在一定的溫度下經(jīng)一定時(shí)間的平衡,吸收液中的三甲胺逸至上部空間,并在氣液兩相中達(dá)到動態(tài)的平衡。用氫火焰離子化檢測器對氣相中的三甲胺進(jìn)行測定。實(shí)驗(yàn)結(jié)果表明,在無組織廢氣吸收液體積為9.9?mL,采樣體積為19?L時(shí),三甲胺的檢出限是0.0032 mg/m~3,線性良好,相關(guān)系數(shù)為0.9998,加標(biāo)回收率為93.0%-99.99%。
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本標(biāo)準(zhǔn)規(guī)定了環(huán)境空氣、惡臭固定污染源有組織和無組織排放中三甲胺的氣 相色譜測定法。
本標(biāo)準(zhǔn)適用于環(huán)境空氣、惡臭固定污染源有組織和無組織排放中三甲胺的測 定。當(dāng)采樣體積為 10L 時(shí)，方法zuidi測定濃度為 2.5×10-3mg／m3 。
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名稱：硬質(zhì)玻璃柱
型號：4%PEG-20M+1%KOH/GDX-401
規(guī)格：3m*3mm，60-80目
使用溫度：240°C
應(yīng)用：GB/T 14676-1993空氣質(zhì)量 三甲胺的測定 氣相色譜法
配套賽默飛1300,1600,1310,1610
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Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses a 4% PEG-20M+1% KOH/GDX-401 glass column to collect trimethylamine from unorganized waste gas using weakly acidic absorption solution. After adding alkaline solution, the trimethylamine in the absorption solution escapes to the upper space at a certain temperature and reaches dynamic equilibrium in the gas-liquid phase after a certain period of time. Use a hydrogen flame ionization detector to determine trimethylamine in the gas phase. The experimental results showed that when the volume of the unorganized exhaust gas absorption solution was 9.9 mL and the sampling volume was 19 L, the detection limit of trimethylamine was 0.0032 mg/m3, with good linearity and a correlation coefficient of 0.9998. The spiked recovery rate was 93.0% -99.99%.
This standard specifies the gas chromatography method for the determination of trimethylamine in organized and unorganized emissions from environmental air and odor fixed pollution sources.
This standard is applicable to the determination of trimethylamine in organized and unorganized emissions from environmental air and odor fixed pollution sources. When the sampling volume is 10L, the method Zuidi determines a concentration of 2.5 × 10-3mg/m3.
Name: Hard Glass Column
Model: 4% PEG-20M+1% KOH/GDX-401
Specification: 3m * 3mm, 60-80 mesh
Operating temperature: 240 ° C
Application: GB/T 14676-1993 Air Quality - Determination of Trimethylamine - Gas Chromatography Method
Supporting Thermo Fisher Scientific 1300160013101610
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