方法采用串联四极杆质谱法。
方法：采用液相色谱-串联四极杆质谱联用法。
Methods: The liquid chromatography-quadrupole mass spectrometry method was used.
这种技术显著地提高了质量准确度，使单级四极杆质谱能够鉴定未知化合物。
This technique dramatically improves mass accuracy and enables single-quad instruments to identify unknown compounds.
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