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To evaluate the ability of microfabricated glow discharge plasma (MFGDP) as ion source used for mass spectrometry imaging, the different handwritings with urea added were analyzed, and the spatial distribution of stearic acid and the ramification of quercetin in a slice of winter jujube were explored. The MFGDP, independently researched and developed by our lab, acted as ion source to absorb and ionize...
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