Hitachi-high-technologies Corporation

Kantaro Suzuki

Taku Sakazume

Kyoko Imai

Yukie Tokiwa

Noriko Maeda

An automatic analyzer and an automatic analyzing system to identify samples and reagents used in the analyzer and members used in measurement of at least two objects in common: system reagents or buffer solution; sensor parts; probes; nozzles; chips; dispensing cups; tubes; ISE electrodes; detectors; deionized water; and waste, and to unify management of identification information thereof and a measurement result.

Automatic analyzer

Photomultiplier tubes differ in performance between individual products, and deteriorate over time. To appropriately use a nonlinear calibration curve, it is desirable that changes in signal level be strictly equalized. This invention includes means for, prior to sensitivity adjustment of a photomultiplier tube by application of high voltages, measuring a same sample under a plurality of high-voltage conditions, determining, from linear relationships between logarithms of each high voltage and those of signal levels, an optimal voltage for a measuring operation of predetermined order of execution in the plurality of measuring operations, and recording identification information for identifying each linear relationship; the invention assessing a healthiness level of the photomultiplier tube by assessing the linear relationship.

Growing community of inventors

Mito, Japan

Kantaro Suzuki