The present invention provides a method of sequencing all or part of a target nucleic acid molecule by determining the sequence of a portion of said nucleic acid molecule in addition to information regarding the position of said portion and in particular provides a new method of sequencing involving the magnification of one or more bases of said bases to aid identification. The arsenic is removed by passing the aqueous phase through the solid materials which can be in molded, granular, or powder form. The device can deliver a visual message as by lighting LEDs, presenting a scrolling message or projection. By pivoting, a folding and unfolding of the plunger assembly can be effected during a blanking operation. The access management unit is designed to authorize the request according to the access rights record of the end user.