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氣動控制元件

氣相色譜廠家色譜進樣閥應用

發布日期:2022-04-18 點擊率:62

氣相色譜廠家色譜進樣閥應用

 

色譜進樣閥常用為六通進樣閥、十通進樣閥等。色譜儀氣體進樣閥不僅僅應用在石化分析的氣相色譜中,還廣泛使用在頂空進樣器,在線監測等其他的儀器中。

 

 

六通閥作為氣相色譜進樣閥 那這種進樣方式的重復性怎么樣呢?

 

氣體進樣閥的應用分類:在線離線

 

在線應用方式

在很多的在線監測儀器中,氣體進樣閥的樣品環被串聯在想要監測的反應器中,讓待測氣體持續,源源不斷地通過樣品環,每隔一段時間,閥自動切換一次,將樣品環中的氣體引入到系統中。主要應用于:環境空氣的自動、連續監測。氣相色譜也可以通過這種方式被串聯在更大的反應體系中,比如在石化行業的天然氣開采和管道運輸中,實現在線檢測。

 

離線應用方式

而我們見的更多的,是閥的離線應用。用氣體注射器、氣體采樣袋、樣品鋼瓶將樣品獲取并轉移到實驗室,連接到樣品環,再將樣品注入。

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