空气和废气监测分析方法中甲醇的气相色谱分析方法，应该解决采样时间长（2h）回收效率低和色谱分高存在在拖尾大水峰三个方面的问题。
浩瀚色谱（山东）应用技术开发有限公司通过实验，使用5%Carbowax20M Carbopack B不锈钢填充柱、FID检测器等直接进1ml气体样品。方法最低检测浓度可达为0．08mg／m3，完全可以替代用水溶液吸收甲醇的色谱分析方法，使用5%Carbowax20M Carbopack B不锈钢填充柱柱不论是进行水样品的分析还是气体样品的分析，甲醇和乙醇分离效果好，而且不会产生拖尾大水峰。新的色谱分析方法，采样省时间，样品代表性好，分析速度快，分析结果可靠、精密、准确。
本标准适用于固定污染源有组织排放和无组织排放的甲醇测定。以3倍噪音色谱峰高值计算，当色谱进样量为1.0ml时，方法的检出限为2mg/m3；定量测定的浓度范围为5.0～104mg/m3。
名称：不锈钢填充柱
型号：5%Carbowax20M Carbopack B
规格：2m*3mm，80-120目
编号：20241123001
*高使用温度：220℃
应用：HJ/T 33-1999 固定污染源排气中甲醇的测定 气相色谱法
适用于安捷伦4890，5890,6890,7890,7820,8860,8890
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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