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kzhchg2006

新虫 (小有名气)

[求助] 请教:GC仪器开机操作相关问题。

气相色谱灵敏度的问题?
我们09年购买的上海精科出产的GC-112A型气相色谱仪,买回以后工作正常。后闲置约半年,最近在开机实验发现在没有动任何条件的前提下,手动进样的溶剂峰峰高只有300mv左右(正常的时候可是1200mv),后来调了分流比、换了衬管、查了漏、再将灵敏度调到满档,溶剂峰能勉强达到660mv,请问这样的灵敏度影响痕量分析吗?各位的容积峰高一般是多少呢?
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曾展文

至尊木虫 (著名写手)

【答案】应助回帖

是FID检测器吗?仪器品牌的不同、其仪器检测器的灵敏度表示就不同。这种情况还是得查仪器的检测器的原因,如果是FID检测器,查查极化电压是否正常。
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