HH-THC06硅烷化總烴柱 HJ 604-2017 環境空氣 總烴、甲烷和非甲烷總烴的測定 直接進樣-氣相色譜法

名稱：硅烷化總烴柱

材質：鈍化不銹鋼管

規格：0.6m*1/8

型號：HH-THC06

應用：HJ 604-2017 環境空氣 總烴、甲烷和非甲烷總烴的測定 直接進樣-氣相色譜法

1 適用范圍
      本標準規定了測定環境空氣中總烴、甲烷和非甲烷總烴的直接進樣-氣相色譜法。
      本標準適用于環境空氣中總烴、甲烷和非甲烷總烴的測定，也適用于污染源無組織排放監控點空氣中總烴、甲烷和非甲烷總烴的測定。

當進樣體積為1.0ml時，本標準測定總烴、甲烷的檢出限均為0.06mg/m³（以甲烷計）, 測定下限均為0.24 mg/m³（以甲烷計）；非甲烷總烴的檢出限為0.07mg/m³（以碳計），測定下限為0.28 mg/m³（以碳計）。

2 規范性引用文件
      本標準引用了下列文件或其中的條款。凡是不注日期的引用文件，其有效版本適用于本標準。
      HJ 194 環境空氣質量手工監測技術規范
      HJ 664 環境空氣質量監測點位布設技術規范（試行）
      HJ 732 固定污染源廢氣揮發性有機物的采樣氣袋法
      HJ/T 55 大氣污染物無組織排放監測技術導則

3 術語和定義

      下列術語和定義適用于本標準。

3. 1

      總烴 total hydrocarbons (THC)

指在本標準規定的測定條件下，在氣相色譜儀的氫火焰離子化檢測器上有響應的氣態有機化合物的總和。

3.2

      非甲烷總烴 nonmethane hydrocarbons (NMHC)

指在本標準規定的測定條件下，從總烴中扣除甲烷以后其他氣態有機化合物的總和（除非另有說明，結果以碳計）。

4 方法原理

將氣體樣品直接注入具氫火焰離子化檢測器的氣相色譜儀，分別在總烴柱和甲烷柱上測定總烴和甲烷的含量，兩者之差即為非甲烷總烴的含量。

浩瀚色譜（山東）應用技術開發有限公司參照《環境空氣總烴,甲烷和非甲烷總烴的測定直接進樣-氣相色譜法》HJ604-2017來測定總烴,甲烷和非甲烷總烴.對儀器條件進行優化,得出總烴的檢出限為0.007mg/m3,甲烷的檢出限為0.013mg/m3,非甲烷總烴的檢出限為0.015mg/m3,研究0.453-7.21mg/m3濃度的甲烷標氣,得出總烴的校準曲線方程為y=12,948.8244 x+742.7768;甲烷的校準曲線方程為y=12,409.5958 x+416.4558;該方法操作簡單,分析速度快,實驗結果滿意.


HJ 604-2017 Ambient Air Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons Direct Injection-Gas Chromatography
HJ 604-2017 Ambient Air Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons Direct Injection-Gas Chromatography Details:

Name: Silanized Total Hydrocarbon Column

Material: Passivated stainless steel tube

Specifications: 0.6m*1/8

Model: HH-THC06

Application: HJ 604-2017 Ambient Air Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons Direct Injection-Gas Chromatography

HJ 604-2017 Ambient Air Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons Direct Injection-Gas Chromatography
1 Scope of application
      This standard specifies the direct injection-gas chromatography method for the determination of total hydrocarbons, methane and non-methane total hydrocarbons in ambient air.
      This standard applies to the determination of total hydrocarbons, methane and non-methane total hydrocarbons in ambient air, and also applies to the determination of total hydrocarbons, methane and non-methane total hydrocarbons in the air at monitoring points of fugitive emissions from pollution sources.

When the injection volume is 1.0ml, the detection limit of this standard for the determination of total hydrocarbons and methane is 0.06 mg/m3 (calculated as methane), and the lower limit of detection is 0.24 mg/m3 (calculated as methane); non-methane total hydrocarbons The detection limit is 0.07 mg/m3 (calculated by carbon), and the lower limit of determination is 0.28 mg/m3 (calculated by carbon).

2 Normative references
      This standard refers to the following documents or clauses thereof. For undated references, the valid edition applies to this standard.
      HJ 194 Technical Specification for Manual Monitoring of Ambient Air Quality
      HJ 664 Technical Specifications for Layout of Ambient Air Quality Monitoring Points (Trial)
      HJ 732 Sampling air bag method for volatile organic compounds in waste gas from stationary pollution sources
      HJ/T 55 Technical guidelines for monitoring fugitive emissions of air pollutants

3 Terms and Definitions

      The following terms and definitions apply to this standard.

3.1

      total hydrocarbons (THC)

Refers to the sum of gaseous organic compounds that respond on the hydrogen flame ionization detector of a gas chromatograph under the measurement conditions specified in this standard.

3.2

      nonmethane hydrocarbons (NMHC)

Refers to the sum of other gaseous organic compounds after deducting methane from the total hydrocarbons under the measurement conditions specified in this standard (unless otherwise stated, the results are in carbon terms).

4 Principles of the method

The gas sample was directly injected into a gas chromatograph with a hydrogen flame ionization detector, and the contents of total hydrocarbons and methane were measured on the total hydrocarbon column and the methane column, respectively, and the difference between the two was the content of non-methane total hydrocarbons.



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. refers to "Determination of Total Hydrocarbons, Methane and Non-Methane Total Hydrocarbons in Ambient Air Direct Injection-Gas Chromatography" HJ604-2017 to determine total hydrocarbons, methane and non-methane total hydrocarbons. For the instrument The conditions are optimized, and the detection limit of total hydrocarbons is 0.007mg/m3, the detection limit of methane is 0.013mg/m3, the detection limit of non-methane total hydrocarbons is 0.015mg/m3, and the detection limit of the research is 0.453-7.21mg/m3 The calibration curve equation of total hydrocarbons is y=12,948.8244 x+742.7768; the calibration curve equation of methane is y=12,409.5958 x+416.4558; the method is simple to operate, fast to analyze, and the experimental results are satisfactory.