Patent · US Active

Microfluidic process water analyzer

US10850211B2 · kind B2 · utility

0Cited by

7References

15Claims

0Family size

Assignee

HACH LANGE GMBH · DE

Inventors

Rolf Uthemann · Leverkusen, DE
Markus Lenhard · Viersen, DE

Key dates

Filing date	Jul 1, 2016
Grant date	Dec 1, 2020
Priority date	—
Expiry date	Jul 1, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01N35/1095
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention refers to a microfluidic process water analyzer (10) comprising an analyzer sample inlet (52), an optical sensor unit (40) for determination of an optical parameter of a liquid sample, a reagent tank (20; 201, 202, 203) being arranged fluidically upstream of the optical sensor unit (40) and comprising a liquid reagent (21), a waste tank (30; 301, 302, 303) arranged fluidically downstream of the optical sensor unit (40), an evaporation arrangement (32) comprising an evaporation chamber (33) arranged fluidically downstream of the optical sensor unit (40), the evaporation chamber (33) being actively vented with a drying gas pumped from a gas source (60) to the evaporation chamber (33). The evaporation arrangement allows to significantly reduce the volume of waste liquid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.