Patent ID: 6537817
Filing Date: 2003-03-25
Classification: B01J,B01L,B03C,B08B,B41J,C40B,G01F,G01N,Y10T

Abstract:
A method of removing deposits adhering to the interior walls of a capillary tube having inner and outer walls:(a) aspirating into said capillary tube a liquid containing magnetic particles having a size smaller than said capillary tube inner wall; (b) positioning a magnet outside said capillary tube for attaching said magnetic particles of (a) to positions adjacent said inner wall; (c) moving said magnet relative to said capillary or said capillary relative to said magnet, thereby causing said magnetic particles to move adjacent to said inner wall and loosen said deposits; and (d) discharging said liquid containing said magnetic particles and said deposits loosened from said inner wall.