Patent ID: 9378938
Filing Date: 2016-06-28
CPC Classification: H01J

Claim Text:
1. An ion source comprising: one or more nebulisers and one or more mesh or grid targets; wherein said one or more nebulisers are arranged and adapted to nebulise one or more eluents emitted by one or more liquid chromatography separation devices over a period of time; wherein one or more nebulisers are arranged and adapted to emit, in use, a stream predominantly of droplets which are caused to impact upon said one or more mesh or grid targets and to ionise said droplets to form a plurality of ions; and wherein the Sauter mean diameter (“SMD”, d32) of said droplets is in a range: (i) <5 μm; (ii) 5-10 μm; (iii) 10-15 μm; (iv) 15-20 μm; or (v) 20-25 μm.