A lead includes a lead body having an expandable section. An email is sent to a recipient containing a link to a first visual arrangement generated by a sender. The instrument comprises a needle pipe through which the solution sample is passed, a sheath tube formed coaxially with the needle pipe and passing a temperature-controlled nebulizing gas therethrough, the above-described desolvation block, means for cooling the block, means for heating the block, and a temperature sensor for detecting the temperature of the block.