Continuous sampling and dilution system and method

Details Continuous sampling and dilution system and method Continuous sampling and dilution system and method

1997-08-25

1999-05-25

Larkin, Daniel S.

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

73 2801, 73 3102, 73 3103, 73 5307, 73 6141, 73 6171, 73863, 7386361, G01N 118, G01N 1506

Patent

active

059071087

ABSTRACT:
A system and method for the automatic sampling and dilution of homogeneous particle dispersions is developed that uses a multistep parallel dilution network system for the sample and diluent and includes variable dilution capabilities. The sample and diluent are combined and allowed to mix uniformly over a predetermined conduit length. Resampling from the first dilution step and recombining with another diluent line results in a second dilution step. The number of steps determines the dilution range; the manipulation of the sample and diluent flow rates provides a variable dilution ratio at each dilution step. An exemplary embodiment reduces the concentration of a latex sample for analysis with uv-vis spectrometry. In another embodiment, the emulsion polymerization of styrene is followed in real time with turbidity measurements taken on diluted samples.

REFERENCES:
patent: 5054309 (1991-10-01), Mettes et al.
patent: 5509292 (1996-04-01), D'Appollonia et al.

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