Abstract: A sample analyzer includes: a preparation unit configured to mix a sample with a reagent to prepare a measurement specimen; a measurement unit configured to irradiate the measurement specimen with light to acquire optical time series data; and a controller configured to divide the time series data acquired by the measurement unit into data segments, determine first regression lines respectively of the data segments, select the first regression line with the highest matching degree with the time series data, set as an analysis target region a region of the time series data matching with the selected first regression line among the time series data acquired by the measurement unit, determine a second regression line using the time series data included in the set analysis target region, and perform an analysis using the second regression line.

Abstract: Disclosed is a sample analyzer configured to analyze a concentration of a target material contained in a sample based on a value representing a slope of a regression line which is based on data values included in an interval from a start point to an endpoint. The start point is detected by a predetermined method and the endpoint is detected by a predetermined method.

Abstract: Disclosed is a sample analyzer configured to analyze a concentration of a target material contained in a sample based on a value representing a slope of a regression line which is based on data values included in an interval from a start point to an endpoint. The start point is detected by a predetermined method and the endpoint is detected by a predetermined method.

Abstract: A sample analyzer includes: a preparation unit configured to mix a sample with a reagent to prepare a measurement specimen; a measurement unit configured to irradiate the measurement specimen with light to acquire optical time series data; and a controller configured to divide the time series data acquired by the measurement unit into data segments, determine first regression lines respectively of the data segments, select the first regression line with the highest matching degree with the time series data, set as an analysis target region a region of the time series data matching with the selected first regression line among the time series data acquired by the measurement unit, determine a second regression line using the time series data included in the set analysis target region, and perform an analysis using the second regression line.

Abstract: In order to provide an immunoassay method and an immunoassay apparatus capable of further reducing errors due to non-target substances, a detector measures a measurement specimen and detects information regarding the binding number of carrier particles included in the measurement specimen. A controller classifies, based on the information regarding the binding number, particles included in the measurement specimen into groups, the groups being classified in accordance with the binding numbers.

Abstract: A method of competitive immunoassay is provided.

Abstract: An analysis result providing system comprising, a sample analyzing section which analyzes a sample collected from a subject, a validation section which validates an analysis result obtained by the sample analyzing section, an e-mail sending section which sends, when an analysis result of the sample collected from the subject has been validated by the validation section, an e-mail for providing the analysis result; and a handheld device which is carried by the subject and which is capable of receiving the e-mail sent by the e-mail sending section and displaying a content of the e-mail.