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heaven1234

金虫 (小有名气)

[求助] 为什么用SPME萃取针时,针头总是断在趁管中?

我用新买的SPME萃取针 75um CAR\PDMS的萃取针,在GC/MS(安捷伦的)进样时,总出现针头(带涂层部分)断在趁管中情况。进样操作应该正确,之前做预实验时没有出现断针的情况,但准备正式试验的时候连续断了2根。
肯请给位大神帮忙找下原因,给些指导建议,非常感谢!
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