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Anna~Yang

新虫 (初入文坛)

[求助] 质谱 空白中采集的离子等很大

waters2695液质联用    用质谱检测酮康唑,进了一针10ppb对照液,和浓度较大的样品后,连续进了四五针甲醇,,在相同的位置出峰并且离子峰面积一直都7000多,,,,换了好几根柱子,还是这样,到底怎么回事,,,求助,在线等

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stingdhk

铁杆木虫 (著名写手)

样品浓度多大,污染了吧?
2楼2016-11-22 15:12:14
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Anna~Yang

新虫 (初入文坛)

引用回帖:
2楼: Originally posted by stingdhk at 2016-11-22 15:12:14
样品浓度多大,污染了吧?

样品估计也就ppb级的,,,最多ppm级    但是进了这么多空白了,还不见减少

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3楼2016-11-22 15:16:23
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