Stopped flow spectrophotometer mixer

Details Stopped flow spectrophotometer mixer Stopped flow spectrophotometer mixer

1990-10-12

1992-03-24

McGraw, Vincent P.

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

G01N 2105

Patent

active

050981862

ABSTRACT:
An improvement in rapid mixers for stopped flow spectrophotometers is disclosed. This improvement involves the dispersion of one solution from the bore of a disperser through notches into a flowing sheath of a second solution. The dispersed mixture is then mixed by passage through a mixer made up of a series of mixing rings with lands and grooves. The lands and grooves of adjoining rings are aligned so grooves are adjacent to lands, thus providing maximum mixing. The ratio of volumes of solutions mixed may vary from 1:1 to 40:1 by varying the number and size of notches in the end of the disperser tube. The viscosity ratio of the solutions mixed may vary from 1:1 to 100:1. Complete (greater than 99%) mixing occurs in less than one millisecond.

REFERENCES:
patent: 515618 (1894-02-01), Saladin
patent: 3815789 (1974-06-01), Carpigiani
patent: 3932136 (1976-01-01), Stickney
patent: 3970388 (1976-07-01), Hacker
patent: 4076420 (1978-02-01), De Maeyer et al.
patent: 4399101 (1983-08-01), Queen

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