Measurement of concentrations of dissolved solvent
First Claim
1. A method of measuring minute concentrations of a solid dissolved in a liquid comprising mixing a known amount of seed material into said liquid, atomizing said liquid into droplets including a measurement droplet of a known size containing a known amount of said seed material, drying said measurement droplet to a residue particle containing said solid and said seed material in solid form, and measuring the size of said residue particle.
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Abstract
In a system for measuring minute concentrations of dissolved solids in liquids, seed particles of a known diameter are mixed with the liquid and the mixture of the seed particles and the liquid is atomized into droplets of a known size. The droplets are dried to residue particles comprising the seed particle surrounded by a shell of the dissolved solid. The size of the residue particles are measured by passing the residue particles through a laser beam to scatter light to photodetectors so as to generate a pulse from each particle. The amplitude of the pulses will indicate the size of the residue particle from which the thickness of the shell and the concentration of the dissolved solid can be determined.
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Citations
18 Claims
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1. A method of measuring minute concentrations of a solid dissolved in a liquid comprising mixing a known amount of seed material into said liquid, atomizing said liquid into droplets including a measurement droplet of a known size containing a known amount of said seed material, drying said measurement droplet to a residue particle containing said solid and said seed material in solid form, and measuring the size of said residue particle.
- 2. A method of measuring minute concentrations of dissolved solids in a liquid comprising mixing a solid seed particle of a known size with said liquid, atomizing said liquid into droplets including a measurement droplet of a known size containing said seed particle, drying said measurement droplet to a residue particle consisting said seed particle and a shell of said solid material around said seed particle, and measuring the size of said residue particle.
- 12. An apparatus for measuring minute quantities of a solid dissolved in a liquid comprising means to mix solid seed particles of a known size with said liquid, atomizing means to atomize the mixture of said liquid and said seed particles into droplets of a known size wherein some of said droplets contain a single seed particle, means to dry said droplets to residue particles comprising said seed particles surrounded by a shell of said solid material, means to measure the size of said residue particles.
Specification