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Atmospheric Pressure Chemical Ionization Source (APCI)

Atmospheric Pressure Chemical Ionization Source (APCI)

Atmospheric pressure chemical ionization (APCI) is a popular complement to electrospray. Because APCI does not generate multiply charged ions, and operates at higher temperatures, it is commonly used to analyze smaller, thermally stable polar and non-polar compounds. Agilent's APCI source is sensitive, yet extremely robust thanks to orthogonal spray and counterflow drying gas. Like the ESI source, it can generate both positive and negative ions, and ion polarity can be switched on a spectrum-to-spectrum basis.

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