氣相色譜法測定汽油餾分中的單體芳烴，液化石油氣，二甲醚，甲縮醛，甲醛，粗苯，三苯，二甲苯，乙酸乙酯，環(huán)氧乙烷，三甲胺，二甲醚，甲酸，植物油，脂肪酸

氣相色譜法測定汽油餾分中的單體芳烴
氣相色譜法測定汽油餾分中的單體芳烴 詳細信息：

固定相：專用

規(guī)格：30m*0.25mm*0.25um

型號：HH-AH

汽油中芳烴，通常采用采用三柱一閥二維/多維氣相色譜系統(tǒng)單次進樣、歸一化法定量分析初餾200℃的汽油(包括含有醇類、醚類的成品汽油)中的芳烴含量。具體操作:樣品進入系統(tǒng)后分為兩路,一路經(jīng)過分析柱1(Col 2)后直接到檢測器;另一路進入預切柱(Col 1),烷烴和烯烴先于芳烴流出,待烷烴和烯烴放空后將閥切換到反吹狀態(tài),Col 1中的芳烴被反吹出來,進入分析柱2(Col 3),經(jīng)過分離后到檢測器,經(jīng)計算得到樣品分析結果。此法操作復雜，費時費力，儀器需要二維/多維色譜，價格昂貴，一般企業(yè)很難配置.
滕州市浩瀚色譜儀器技術服務有限公司，，研發(fā)專用毛細管柱，直接進樣測定汽油中芳烴含量，外標定量，結果滿意，實用性強，值得推廣。該法簡便、快速、樣品用量少、測試范圍寬,避免了汽油中其他組分對芳烴測定的干擾。

氣相色譜法測定汽油餾分中的單體芳烴 圖片：




Determination of Monomer Aromatics in Gasoline Fraction by Gas Chromatography
Determination of Monomeric Aromatic Hydrocarbons in Gasoline Fractions by Gas Chromatography

Stationary phase: dedicated
Specification: 30m*0.25mm*0.25um
Model: HH-AH


Aromatic hydrocarbons in gasoline are usually used in a single injection and normalization method using a three-column one-valve two-dimensional/multi-dimensional gas chromatography system to quantitatively analyze gasoline (including finished gasoline containing alcohols and ethers) which is initially distilled to 200 °C. Aromatic content. Specific operation: After the sample enters the system, it is divided into two ways, one pass through the analytical column 1 (Col 2) and directly to the detector; the other enters the pre-cut column (Col 1), the alkane and olefin flow out before the aromatic hydrocarbon, and the alkane and olefin After venting, the valve is switched to the backflushing state, and the aromatic hydrocarbons in Col 1 are back-blown out, entering the analytical column 2 (Col 3), and after separation, the detector is obtained, and the sample analysis result is calculated. This method is complicated, time-consuming and laborious. The instrument needs 2D/multi-dimensional chromatography, which is expensive and difficult for general enterprises to configure.
Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. keeps pace with the times, researches and develops special capillary columns, and directly measures the content of aromatic hydrocarbons in gasoline. The external standard is quantitative, the results are satisfactory, the practicability is strong, and it is worth promoting. The method is simple, rapid, the sample dosage is small, and the test range is wide, which avoids the interference of other components in the gasoline on the determination of aromatic hydrocarbons.

Determination of Monomer Aromatics in Gasoline Fraction by Gas Chromatography