名稱：毛細(xì)管柱

規(guī)格：30m*0.32mm*0.5um
型號(hào)：HH-FFAP

應(yīng)用：工作場(chǎng)所空氣有毒物質(zhì)測(cè)定第50部分：2-甲氧基乙醇、2-乙氧基乙醇和2-丁氧基乙醇

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司建立了工作場(chǎng)所空氣中2-甲氧基乙醇(EM),2-乙氧基乙醇(EE),2-丁氧基乙醇(EB)的溶劑解吸氣相色譜同時(shí)測(cè)定法.采用活性炭管采集,溶劑解吸,毛細(xì)管色譜柱分離的氣相色譜(FID)測(cè)定方法.EM,EE,EB在本方法規(guī)定的濃度范圍內(nèi)線性關(guān)系良好,相關(guān)系數(shù)均大于0.999,檢出限均為0.50 mg/L,低檢出濃度均為0.67 mg/m3(以采集3.0 L空氣計(jì)).相對(duì)標(biāo)準(zhǔn)偏差(RSD)為0.4%～1.8%(n=6),平均解吸效率為97.3%～101.1%,樣品在室溫下少可保存7天.該方法靈敏度高,精密度好,操作簡(jiǎn)單,適用于工作場(chǎng)所空氣中EM,EE,EB的同時(shí)測(cè)定.


工作場(chǎng)所空氣中三種烷氧基乙醇化合物的同時(shí)測(cè)定法  測(cè)試譜圖：




Simultaneous determination of three alkoxyethanol compounds in workplace air
Simultaneous determination of three alkoxyethanol compounds in workplace air Details:

Name: capillary column

Specifications: 30m*0.32mm*0.5um
Model: HH-FFAP

Application: Determination of Toxic Substances in Workplace Air Part 50: 2-Methoxyethanol, 2-Ethoxyethanol and 2-Butoxyethanol

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. established the solvent desorption gas chromatography of 2-methoxyethanol (EM), 2-ethoxyethanol (EE), 2-butoxyethanol (EB) in workplace air Simultaneous determination method. Using activated carbon tube collection, solvent desorption, and capillary chromatographic column separation gas chromatography (FID) determination method. EM, EE, EB have a good linear relationship within the concentration range specified by this method, and the correlation coefficients are all greater than 0.999. The limit of detection was 0.50 mg/L, and the lowest detection concentration was 0.67 mg/m3 (based on 3.0 L of air). The relative standard deviation (RSD) was 0.4%-1.8% (n=6), and the average desorption efficiency was 97.3 %～101.1%, the sample can be stored at room temperature for at least 7 days. The method has high sensitivity, good precision and simple operation, and is suitable for the simultaneous determination of EM, EE and EB in the air of the workplace.


Simultaneous determination of three alkoxyethanol compounds in workplace air Test spectra: