Medical swabs are used for biofluid and tissue sampling in clinical applications. The use of medical swabs as electrospray ionization probes for direct mass spectrometric analysis is a novel and potentially widely applicable development. Here we discuss ion generation, characterize ionization behavior via microscopic videography and describe some illustrative examples of applications.

中文翻译：

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从拭子直接产生离子

医用拭子在临床应用中用于生物流体和组织采样。将医用拭子用作电喷雾电离探针进行直接质谱分析是一种新颖且潜在地广泛应用的发展。在这里，我们讨论离子的产生，通过显微摄影来表征电离行为，并描述一些示例性的应用示例。