05371020 is referenced by 44 patents and cites 16 patents.

A method of photometric in vitro determination of the content of an analyte in a sample is disclosed. The sample is located in a measuring chamber which has a radiation path length and has at least one at least partially transparent wall part. The measuring chamber is in optical communication with an optical system adapted for the analyte which includes a radiation source and a radiation detector. The measuring chamber is adjustable in shape which enables the radiation path length across the measuring chamber to be changed. In a first measuring step an unknown first radiation path length across the measuring chamber is set and radiation at at least two wavelengths is transmitted from the radiation source through the measuring chamber and to the radiation detector. In a second step, the measuring chamber is adjusted in shape thereby setting a second unknown path length across the measuring chamber. Radiation at the same wavelengths as during the first step is again transmitted from the radiation source through the measuring chamber and to the radiation detector. The analyte content is then determined on the basis of radiation detected in each of the measuring steps.

Title
Method of photometric in vitro determination of the content of an analyte in a sample
Application Number
8/50100
Publication Number
5371020
Application Date
May 7, 1993
Publication Date
December 6, 1994
Inventor
Peter A Frischauf
Broendby
DK
Agent
David M Klein
Assignee
Radiometer
DK
IPC
G01N 21/03
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