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毛细管色谱柱故障排除指南的分析

发布时间:2017-05-31 22:34:22 分类:行业新闻 来源: 点击:次

毛细管色谱柱故障排除指南的分析 毛细管色谱柱故障排除指南的分析   1、峰丢失  1.注射器有毛病 用新注射器验证  2.未接入检测器,或检测器不起作用,检查设定值  3.进样温度太低,检查温度,并根据需要调剂  4.柱箱温度太低,检查温度,并根据需要调剂  5.无载气流,检查压力调理器'>调理器,并检查泄漏,验证柱进品流速  6.柱断裂,如果柱断裂是在柱进口端或检测器末端,是可以补救的,切去柱断裂部份,重新安装  2、前沿峰  1.柱超载,减少进样量  2.两个化合物共洗脱,提高灵敏度和减少进样量,使温度下降10~20度,以使峰分开  3.样品冷凝,检查进样口和柱温,如有必要可升温  4.样品分解,采取失活化进样器衬管或调低进样器温度  3、拖尾峰  1.进样器衬套或柱吸附活性样品,更换衬套。如不能解决问题,就将柱进气端去掉1~2圈,再重新安装  2.柱或进样器温度太低,

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  1.ZHUSHEQIYOUMAOBING YONGXINCHATOUXIANTULASHIYANJIZHUSHEQIYANZHENG

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  7.ZAIQIKONGZHIBUDIAOHE,JIANCHAZAIQIYUAN,KANYALISHIBUSHIZUGOU。QINGGENGHUANQIPING。

毛细管色谱柱故障排除指南的分析