Residue concentration measurement technology

摘要

A method and apparatus for measuring dissolved residue concentrations and particulate residue particle concentrations and size distribution in liquids, particularly colloidal suspensions. The method involves separating dissolved and particulate residues in liquids for subsequent analysis of the residue species. The method includes the steps of forming an aerosol from the liquid sample to be analyzed, evaporating the droplets in the aerosol to dryness, detecting and sizing the particles, and determining the liquid volumetric inspection rate. An apparatus for separating dissolved and particulate residues in liquids for determination of the concentrations of the two residue species as well as the size distribution of the particulate species is also disclosed. The apparatus includes a droplet former, a dryer communicatively connected to the droplet former, and a detector communicatively connected to the evaporator for detecting and sizing particles.

主权项

1. An analysis apparatus, comprising a droplet former for forming small droplets less than 10 um in diameter, an evaporator communicatively connected to the droplet former, and a detector communicatively connected to the evaporator for detecting dissolved and particulate residues, wherein the droplet former is calibrated using a liquid volumetric inspection rate which is determined by inputting a colloidal suspension with a known volumetric concentration of particulate residue, and measuring the volumetric concentration of particulate residue by:
a. forming an aerosol containing droplets from the liquid; b. isolating the small less than 10 um diameter, uniformly sized droplets from the droplets; c. removing liquid from the small less than 10 um diameter, uniformly sized droplets to form dissolved residue particles and particulate residue particles, and d. analyzing dissolved and particulate residue particles by counting and sizing.