SAMPLE ANALYZER AND SAMPLE ANALYSIS METHOD

• Main Authors: MIKAWA HIROAKI, TAKAHASHI MASARU, OKUZAKI YUICHI, HAYASHI AYUMI, KAWASAKI KOHEI, CHIYOMARU MASARU
• Format: Patent
• Language: English; Japanese
• Published: 13.03.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To appropriately analyze so as to maintain the concentration of a specific substance included in a process liquid in a desired range.SOLUTION: Provided is a sample analyzer 100 comprising a syringe pump 10, a passage switching valve 20, a mixing container 30, a detection unit 40 for detecting the concentration of a specific substance included in a sample liquid, and a control unit 60 for controlling the syringe pump 10 and the passage switching valve 20. The passage switching valve 20 includes a sample port Ps1, a reagent port Ps3, and a detection port Ps2 which is connected to a detection piping Ls2 where the detection unit 40 is located. The control unit 60 controls the syringe pump 10 and the passage switching valve 20 so as to draw in a reagent liquid from a reagent piping to the mixing container 30, draw in a sample liquid from a sample piping to the mixing container 30, draw in a reagent liquid from the reagent piping to the mixing container 30 and supply a mixed liquid that contains the sample liquid and the reagent liquid from the mixing container 30 to the detection unit 40.SELECTED DRAWING: Figure 2 【課題】処理液に含まれる特定物質の濃度を所望の範囲に保つように適切に分析する。【解決手段】シリンジポンプ１０と、流路切換バルブ２０と、混合容器３０と、試料液に含まれる特定物質の濃度を検出する検出部４０と、シリンジポンプ１０及び流路切換バルブ２０を制御する制御部６０と、を備え、流路切換バルブ２０は、試料ポートＰｓ１と、試薬ポートＰｓ３と、検出部４０が配置される検出配管Ｌｓ２に接続される検出ポートＰｓ２と、を有し、制御部６０は、試薬配管から混合容器３０へ試薬液を引き込み、試料配管から混合容器３０へ試料液を引き込み、試薬配管から混合容器３０へ試薬液を引き込み、混合容器３０から検出部４０へ試料液と試薬液とを含む混合液を供給するようシリンジポンプ１０及び流路切換バルブ２０を制御する試料分析装置１００を提供する。【選択図】図２