甲烷毛細(xì)管柱應(yīng)用之環(huán)境空氣/固定污染源廢氣，室內(nèi)空氣，焦?fàn)t煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，過氧化物，MTBE，口罩，增塑劑，塑化劑，消毒劑

甲烷毛細(xì)管柱應(yīng)用之環(huán)境空氣/固定污染源廢氣
甲烷毛細(xì)管柱應(yīng)用之環(huán)境空氣/固定污染源廢氣 詳細(xì)信息：

名稱：甲烷毛細(xì)管柱

編號：20220719007

規(guī)格：30m*0.53mm*25um

型號：HH-PLOT Molecular sieve

使用溫度：250°C

應(yīng)用：HJ-2017環(huán)境空氣/固定污染源廢氣中總烴，甲烷，非甲烷總烴的測定 氣相色譜法

非甲烷總烴的測定方法為氣相色譜法，利用差減法測定非甲烷總烴的含量；具體的，定量體積樣品氣通過氣相色譜柱分離甲烷，經(jīng)fid測量甲烷含量，同等體積樣品氣體，不經(jīng)分離甲烷，通入同一fid測量總烴含量，將總烴含量減去甲烷含量即得到非甲烷總烴的含量。

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司建立了毛細(xì)管柱-雙氫火焰檢測器測定非甲烷總烴的方法,經(jīng)優(yōu)化色譜條件,獲得了的實驗條件,并根據(jù)氫火焰檢測器(FID)的原理探討氧及非烴類等含碳化合物的響應(yīng)及影響.研究結(jié)果表明,本方法測定總烴的標(biāo)準(zhǔn)曲線為0.9994,當(dāng)色譜進(jìn)樣量為0.25 m L時,方法精密度為0.12%、方法檢出限為0.016 mg·m-3(以碳計)等均符合HJ/T38—1999性能指標(biāo)的要求.實驗結(jié)果表明含Cl、O、S類的揮發(fā)性化合物在測定非甲烷總烴時,也有不同程度的響應(yīng)值,對計算總烴濃度產(chǎn)生影響.

甲烷毛細(xì)管柱應(yīng)用之環(huán)境空氣/固定污染源廢氣  測試譜圖：



Ambient Air/Fixed Pollution Source Waste Gas for Methane Capillary Column Application
Ambient air/fixed source waste gas for methane capillary column application Details:

Name: Methane capillary column

Number: 20220719007

Specifications: 30m*0.53mm*25um

Model: HH-PLOT Molecular sieve

Operating temperature: 250°C

Application: HJ-2017 Determination of total hydrocarbons, methane, and non-methane total hydrocarbons in ambient air/stationary pollution source waste gas by gas chromatography




The determination method of non-methane total hydrocarbons is gas chromatography, and the content of non-methane total hydrocarbons is determined by the subtraction method; specifically, the quantitative volume of sample gas is separated from methane by a gas chromatography column, and the methane content is measured by fid. Separate methane, measure the total hydrocarbon content by feeding the same fid, and subtract the methane content from the total hydrocarbon content to obtain the non-methane total hydrocarbon content.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. established a method for the determination of non-methane total hydrocarbons by capillary column-double hydrogen flame detector. After optimizing the chromatographic conditions, the best experimental conditions were obtained. The principle of this method was used to discuss the response and influence of carbon-containing compounds such as oxygen and non-hydrocarbons. The results showed that the standard curve for the determination of total hydrocarbons by this method was 0.9994, and when the chromatographic injection volume was 0.25 mL, the method precision was 0.12%, The detection limit of the method is 0.016 mg·m-3 (calculated as carbon), which meets the requirements of HJ/T38-1999 performance indicators. The experimental results show that the volatile compounds containing Cl, O, and S are used in the determination of non-methane total hydrocarbons. , there are also different degrees of response values, which have an impact on the calculation of the total hydrocarbon concentration.

Test spectrum of ambient air/fixed pollution source exhaust gas for methane capillary column application: