空氣和廢氣監(jiān)測(cè)分析方法中甲醇的氣相色譜分析方法，應(yīng)該解決采樣時(shí)間長(zhǎng)（2h）回收效率低和色譜分高存在在拖尾大水峰三個(gè)方面的問(wèn)題。
浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司通過(guò)實(shí)驗(yàn)，使用5%Carbowax20M Carbopack B不銹鋼填充柱、FID檢測(cè)器等直接進(jìn)1ml氣體樣品。方法最低檢測(cè)濃度可達(dá)為0．08mg／m3，完全可以替代用水溶液吸收甲醇的色譜分析方法，使用5%Carbowax20M Carbopack B不銹鋼填充柱柱不論是進(jìn)行水樣品的分析還是氣體樣品的分析，甲醇和乙醇分離效果好，而且不會(huì)產(chǎn)生拖尾大水峰。新的色譜分析方法，采樣省時(shí)間，樣品代表性好，分析速度快，分析結(jié)果可靠、精密、準(zhǔn)確。
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本標(biāo)準(zhǔn)適用于固定污染源有組織排放和無(wú)組織排放的甲醇測(cè)定。以3倍噪音色譜峰高值計(jì)算，當(dāng)色譜進(jìn)樣量為1.0ml時(shí)，方法的檢出限為2mg/m3；定量測(cè)定的濃度范圍為5.0～104mg/m3。
名稱：不銹鋼填充柱
型號(hào)：5%Carbowax20M Carbopack B
規(guī)格：2m*3mm，80-120目
編號(hào)：20241123001
*高使用溫度：220℃
應(yīng)用：HJ/T 33-1999 固定污染源排氣中甲醇的測(cè)定 氣相色譜法
適用于安捷倫4890，5890,6890,7890,7820,8860,8890
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The gas chromatography analysis method for methanol in air and exhaust gas monitoring and analysis should address the problems of long sampling time (2h), low recovery efficiency, and high chromatographic separation due to the presence of tailing and large water peaks.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. conducted experiments using 5% Carbowax20M Carbopack B stainless steel packed column, FID detector, etc. to directly inject 1ml gas sample. The minimum detection concentration of the method can reach 0.08mg/m3, which can completely replace the chromatographic analysis method of absorbing methanol with aqueous solution. Using a 5% Carbowax20M Carbopack B stainless steel packed column, whether for water sample analysis or gas sample analysis, the separation effect of methanol and ethanol is good, and there is no tailing of large water peaks. The new chromatographic analysis method saves sampling time, has good sample representativeness, fast analysis speed, and reliable, precise, and accurate analysis results.
This standard is applicable to the determination of methanol in organized and unorganized emissions from fixed pollution sources. The detection limit of the method is 2mg/m3 when the chromatographic injection volume is 1.0ml, calculated based on the peak height of the 3-fold noise chromatography; The concentration range for quantitative determination is 5.0-104mg/m3.
Name: Stainless Steel Filled Column
Model: 5% Carbowax20M Carbopack B
Specification: 2m * 3mm, 80-120 mesh
Number: 2024112301
*High operating temperature: 220 ℃
Application: HJ/T 33-1999 Determination of Methanol in Fixed Source Exhaust Gas Gas Chromatography Method
Suitable for Agilent 4890589068907890782088608890
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