Optimal performance generally requires flow
rates from 10 nL/min to 500 nL/min. The very
narrow orifices of Proxeon emitters (1 - 30 μm)
ensure that such low flow rates are achievable.
Proxeon emitters and ion sources ensure a strong
signal while using the lowest possible flow rate
and conserving sample. Their design takes
advantage of the fact that the signal intensity
observed in ES-MS is concentration dependent and
not a function of total sample consumption.
Stainless steel online emitters
Maintain stable spray over a
wide flow rate range – from less than 50 nL/min
to more than 1500 nL/min
Easily re-initiated after intermissions
Exceptional durability – reliable
performance in excess of 1000 hours
Low risk of blockage since the tip is not
tapered inside
Borosilicate offline emitters
Stable spray – from 10 nL/min to
40 nL/min
Long length emitters to achieve slower flow
rates
Medium length emitters for samples with
higher viscosity and easier “start up”
Double coating of Au/Pd for use with
original Micromass sources and whenever a
stronger coating is useful