The invention relates to a method for determining the non-volatile component of aerosol particles in a gas sample, especially in the exhaust gas of internal combustion engines, where the aerosol particles are deposited on an oscillating sensor of at least one crystal microbalance, and the change in at least one oscillation parameter of the oscillating sensor is employed as measurement variable. One embodiment includes a method of resizing an electronic image that includes image data in two dimensions. An insulating collar is used to surround a portion of either the conductor or the capacitor-like structure to confine damage to the desired location. The repeated information is then removed from one or more of the pages within the document file. The medicament may thence flow through any suitable infusion set into a patient removeably attached thereto. The medical device is mounted on the guide wire and can be collapsed within the sheath and body for deployment.