초록 ▼

A method of enhancing the accuracy and reliability of a chemical analysis, wherein a reaction is carried out by combining a sample liquid with at least one reagent to form a test liquid and the test liquid is photometrically scrutinized a plurality of times over an extended period of time to derive

A method of enhancing the accuracy and reliability of a chemical analysis, wherein a reaction is carried out by combining a sample liquid with at least one reagent to form a test liquid and the test liquid is photometrically scrutinized a plurality of times over an extended period of time to derive a number of photometric values. The derived values are then stored and a plurality of the stored photometric values are preliminarily selected from a given time frame, wherein the plurality of preliminarily selected values are less than a total number of stored photometric values. Successive preliminarily selected photometric values are compared with at least one predetermined standard to derive a comparison result and upon indication that useful data cannot be calculated from the preliminarily selected photometric values, a secondarily selecting step of selecting at least one photometric value from all of the stored photometric values, which were not preliminarily selected, is used to derive an analytical result which represents a concentration of a chemical substance in the test liquid or an activity of the test liquid.

대표청구항 ▼

A method of analyzing chemical substances in sample liquids comprising the steps of: carrying out a given reaction by combining a sample liquid with at least one given reagent to form a test liquid; photometering the test liquid at a plurality of timings during a reaction procedure of the test liqui

A method of analyzing chemical substances in sample liquids comprising the steps of: carrying out a given reaction by combining a sample liquid with at least one given reagent to form a test liquid; photometering the test liquid at a plurality of timings during a reaction procedure of the test liquid to derive a plurality of photometric values; storing the plurality of photometric values thus derived; preliminary selecting, from the plurality of photometric values thus stored, a plurality of photometric values which are obtained at times within a predetermined time period, the plurality of preliminarily selected values numbering less than the total number of photometric values derived; comparing the differences between successive preliminarily selected photometric values with at least one predetermined standard for judgement to derive a comparison result; secondarily selecting at least one photometric value from all the stored photometric values which have not been preliminarily selected, because a result of the comparing step indicated that useful data could not be calculated from the preliminarily selected photometric values; and deriving an analytical result representing a concentration of the chemical substance in the test liquid or an activity of the test liquid in accordance with the secondarily selected at least one photometric value.