Malvern Instruments Limited

Malvern Panalytical Inc.

David John Watson

Duncan Edward Stephenson

Clive Patrick Ashley Catterall

Lewis Jones

James Franklin Kovach

Lewis Meurig Jones

A multi-stage dilution device, comprising a first stage dilution apparatus (A), and a second stage dilution apparatus (B), each of the stage dilution device comprising:&#x2014;(i) a housing () having a diluent inlet (); (ii) a sample inlet () having a sample introducer within the housing () adapted to introduce the sample at an introducer point () within the housing (); and, (iii) a mixing conduit () mounted at least partially within the housing (), the mixing conduit () having an inlet section comprising a mouth (), and a fluid outlet (), and a throat section () capable of producing a pressure drop within the mixing conduit (), the pressure drop being sufficient to draw sample through the sample inlet (); the introducer point () of the sample inlet () being proximate the mixing conduit inlet; and wherein the fluid output () of the first stage dilution apparatus (A) is in communication with the sample inlet () of the second stage dilution apparatus (B). A method of diluting a sample is also disclosed.

Dilution system and method

A particle size distribution analysis apparatus comprising a sample measurement zone adapted to define a sample of particles, a light emitting means adapted to provide a source of light incident upon the sample measurement zone, and at least a first detection means adapted to measure light levels in the apparatus at particular scattering angles and output a signal to a computation means enabling the particle size distribution of particles contained within the sample to be determined, wherein the computation means is adapted, in use, to calculate a particle size distribution taking into account reflections by the measurement zone of light scattered off the particles.

Measurement of particle size distribution

A particle size distribution analysis apparatus wherein there are provided a sample measurement zone adapted to contain a sample of particles, a light emitting means adapted to provide a source of light incident upon the measurement zone, and a detection means adapted to measure light levels at different scattering angles and to output signals to a computation means, enabling the size of particles contained within the sample to be determined, wherein the light emitting means comprises a first light source emitting a substantially monochromatic first wavelength of light and a second light source emitting a substantially monochromatic second, different, wavelength of light.

Growing community of inventors

Hanley Swan, United Kingdom

David John Watson