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氣相色譜出現圓頂寬峰及平的原因-上海91福利在线观看分析儀器有限公司

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氣相色譜出現圓頂寬峰及平的原因

更新時間:2021-11-17點擊次數:10624

一、圓頂寬峰

1、樣品量大起出了色譜柱容量;

2、汽化溫度低;

3、色譜柱沒按要求安裝;

4、檢測器工作狀態不對,如載氣太小、沒開補充氣;

5、數據處理裝置的判峰參數(半峰寬)設置偏大。

二、平(未到滿量程):

1、樣品量大,放大器量程高,衰減大,信號輸出飽和;

2、檢測器已工作在飽和區;

3、數據處理輸入信號極性接錯,或零點失調。

 

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