System and method for analyzing biological fluid in multiple cuvettes

A method of analyzing biological sample fluid, the method comprising:

• placing a plurality of cuvettes side by side in an analyzer, each of the plurality of cuvettes comprising biological sample fluid,
• wherein each cuvette comprises an elongated body with multiple wells and a chromatography inlet that are arranged along a longitudinal direction, wherein the multiple wells comprise a sample well into which the sample fluid is loaded for analysis, wherein the multiple wells further comprise at least one reaction well that contains a reaction composition, wherein each cuvette further comprises a chromatographic strip arranged behind the multiple wells in the longitudinal direction, the chromatographic strip comprising one end portion fluid communication with the chromatography inlet such that fluid received through the chromatography inlet is loaded at the end portion of the chromatographic strip,
• processing a first sample fluid contained in the sample well of a first cuvette of the plurality of cuvettes placed in the analyzer using at least one reaction composition contained in the at least one reaction well of the first cuvette to obtain a first reaction mixture, wherein the processing the first sample fluid is performed within a first sample processing time period;
• subsequent to processing the first sample fluid, performing chromatography of the first reaction mixture in a first chromatographic strip of the first cuvette for a first chromatography time period;
• subsequent to performing the chromatography of the first reaction mixture, performing optical detection of a first chemical entity connected to a first biomarker in the first chromatographic strip of the first cuvette;
• subsequent to processing the first sample fluid, processing a second sample fluid contained in the sample well of a second cuvette of the plurality of cuvettes placed in the analyzer using at least one reaction composition contained in the at least one reaction well of the second cuvette to obtain a second reaction mixture, wherein the processing the second sample fluid is performed within a second sample processing time period;
• subsequent to processing the second sample fluid, performing chromatography of the second reaction mixture in a second chromatographic strip of the second cuvette for a second chromatography time period;
• and
• subsequent to performing the chromatography of the second reaction mixture, performing optical detection of a second chemical entity connected to a second biomarker in the second chromatographic strip,
• wherein, when the first chromatography time period is longer than the second sample processing time period, processing the second sample fluid is performed before the optical detection for the first cuvette while processing the second sample fluid is performed after the optical detection for the first cuvette when the first chromatography time period is shorter than the second sample processing time period.