US 2009/0153865 A1Published application

Analysis system

AssigneeShimadzu Corporation

InventorMichiaki OWA

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Abstract

Analysis system including a central control section for generally controlling the analysis that sends a command to perform a pre-injection operation, to an automatic sampler together with information designating a sample to be selected, such as an identification number, and simultaneously sends a command to perform an operation of measuring a dark current in a photodiode array (PDA) detector, to a multi-channel spectrophotometer. Thus, the automatic sampler performs the pre-injection operation, such as an operation of moving a needle to a position of a designated vial container to suck a sample, and the spectrophotometer performs the dark-current measurement operation during a time period of the pre-injection operation. After the sample is actually introduced into the column, in response to a command to perform a normal measurement operation, an operation of acquiring absorption data of an eluate from the column is started without performing the dark-current measurement operation.

Claims4

Dependent claims

An analysis system comprising:

an automatic sample feeding apparatus for selecting a designated sample from a plurality of prepared samples and reserving said selected sample as a target sample, or changing a target sample;
an optical measuring apparatus including light source means for emitting light to a sample provided by said automatic sample feeding apparatus or a sample containing components of said provided sample, and light detection means for detecting light obtained through said sample in connection with said light emitted from said light source means;
and
a control apparatus for controlling said automatic sample feeding apparatus and said optical measuring apparatus,
wherein:
said optical measuring apparatus includes light blocking means adapted to be selectively interposed in a light path between said light source means and said light detection means to block off said light emitted from said light source means, and dark-current measuring means operable to measure a dark current in said light detection means under a condition that said light emitted from said light source means is blocked off by said light blocking means;
and
said control apparatus is operable to control said automatic sample feeding apparatus and said optical measuring apparatus in such a manner that said optical measuring apparatus performs said operation of measuring said dark current, during a time period where said automatic sample feeding apparatus performs said operation of selecting/reserving or changing a target sample.

5 more elements

Dependencies are inferred from the claim text.