PicoTip nanospray Emitters

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Coating Options

In order to perform electrospray, high voltage must be supplied to the mobile phase. The electrical contact can be made in either of two methods — indirectly through a conductive coating on the emitter, or directly through a junction. Each of these methods requires different styles of emitter coatings. Once you have determined your contact method, select the corresponding coating. Distal coatings are most durable and has been designed to work specifically with our line of PicoTip® adapters.



Diagram showing distal-coated PicoTip  Junction Contact with Distal-Coating (D)
The electrical contact is made to the outside of the emitter, which has a conductive coating on the distal end. The voltage contacts the mobile phase through the gap between the emitter and the transfer line. PicoTips with a distal coating have -D- in their stock numbers. Use primarily with PEEK™ fittings.
 
Diagram showing standard-caoted PicoTip Tip Contact Using the Standard Coating (CE)
The electrical contact is made to the outside of the emitter. The emitter has a conductive coating on the tip where the voltage contacts the mobile phase. with a standard coating have - CE- in their stock numbers. Use primarily with PEEK™ fittings.
 
Diagram showing uncoated PicoTip Junction Contact for Uncoated Tips (N)
The electrical contact is made to the fitting holding the emitter. Voltage contact is made directly to the mobile phase. PicoTips that are uncoated have -N- in their stock numbers. Use primarily with metal fittings.