US 11,988,631 B2
Laser doppler electrophoresis using a diffusion barrier
Jason Cecil William Corbett, Hereford (GB); Malcolm Connah, Worchestershire (GB); and Kevin Mattison, Sterling, MA (US)
Assigned to Malvern Panalytical Limited, Malvern (GB)
Filed by Malvern Panalytical Limited, Malvern (GB)
Filed on May 11, 2020, as Appl. No. 16/872,082.
Application 14/258,144 is a division of application No. 12/972,412, filed on Dec. 17, 2010, granted, now 8,702,942, issued on Apr. 22, 2014.
Application 16/872,082 is a continuation of application No. 14/258,144, filed on Apr. 22, 2014, granted, now 10,648,945.
Prior Publication US 2023/0160851 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 27/453 (2006.01); G01N 27/447 (2006.01)
CPC G01N 27/44721 (2013.01) [G01N 27/44743 (2013.01); G01N 27/453 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrophoretic instrument, comprising:
a generally upright vessel, including:
a transparent detection channel region,
a first upright leg connected to a first side of the detection channel region and extending upward from the detection channel region,
a second upright leg connected to a second side the detection channel region and extending upward from the detection channel region,
a first electrode volume connected to an upward end of the first upright leg opposite the detection channel region and extending horizontally away from the first upright leg, and
a second electrode volume connected to an upward end of the second upright leg opposite the detection channel region and extending horizontally away from the second upright leg,
a first electrode disposed in the first electrode volume and horizontally offset from the first upright leg,
a second electrode disposed in the second electrode volume and horizontally offset from the second upright leg, and
a cell body for supporting the detection channel region, the first upright leg, the second upright leg, the first electrode volume, the second electrode volume, and the first and second electrodes.