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产品名称: 5%Carbowax 20M Carbopack B填充柱 顶空-填充柱气相色谱法测定气样中甲醇
产品型号: 5%Carbowax 20M Carbopack B填充柱
品牌: 1941
产品数量:
产品单价: 面议
日期: 2021-12-07

5%Carbowax 20M Carbopack B填充柱 顶空-填充柱气相色谱法测定气样中甲醇的详细资料

顶空-填充柱气相色谱法测定气样中甲醇
顶空-填充柱气相色谱法测定气样中甲醇 详细信息:

名称:填充柱

色谱固定液:5%聚乙二醇
载体:石墨炭黑80-120目

规格:2m*3mm,2m*1/8

型号:5%Carbowax 20M Carbopack B

应用: HJ T33-1999 固定污染源排气中甲醇的测定气相色谱法 

浩瀚色谱(山东)应用技术开发有限公司对自动顶空进样器与气相色谱法联用技术测定环境空气和废气中甲醇的方法进行了研究.结果表明:当样品加入4 g氯化钠,项空平衡温度为80 ℃,平衡时间为20 min,用5%Carbowax 20M Carbopack B填充柱分离,氢火焰离子化检测器检测时,得到甲醇标准曲线方程为y=23 415x+237.2,相关系数(R)0.9994;检出限为0.002 mg/m3,相对标准偏差(n=6)为0.5%,加标回收率为98.9%.该方法简单、灵敏、分离度好、检出限低.

顶空-填充柱气相色谱法测定气样中甲醇  测试谱图:


Determination of Methanol in Gas Samples by Headspace-Packed Column Gas Chromatography
Determination of methanol in gas samples by headspace-packed column gas chromatography. Details:

Name: Packed column
Chromatographic stationary liquid: 5% polyethylene glycol
Carrier: Graphite carbon black 80-120 mesh

Specification: 2m*3mm, 2m*1/8

Model: 5% Carbowax 20M Carbopack B

Application: HJ T33-1999 Determination of Methanol in Exhaust from Stationary Pollution Sources Gas Chromatography

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has carried out research on the method of automatic headspace sampler combined with gas chromatography for the determination of methanol in ambient air and exhaust gas. The results show that when the sample is added with 4 g of sodium chloride, the item The air equilibrium temperature is 80 ℃, and the equilibrium time is 20 min. It is separated with a 5% Carbowax 20M Carbopack B packed column. When detected by a hydrogen flame ionization detector, the methanol standard curve equation is y=23 415x+237.2, and the correlation coefficient (R ) 0.9994; the detection limit is 0.002 mg/m3, the relative standard deviation (n=6) is 0.5%, and the recovery rate of standard addition is 98.9%. The method is simple, sensitive, good resolution, and low detection limit.

Headspace-packed column gas chromatography for the determination of methanol in gas samples Test spectrum: