Abstract: A biochemical analyzer delivery system, comprising a sample feeding track (42), an advancing track (43), a recovery track (44), at least one to-be-tested sub-track (45), at least one emergency sub-track (46) and at least one return sub-track (47); the sample feeding track (42), the advancing track (43) and the recovery track (44) are parallel to each other; the to-be-tested sub-track (45), the emergency sub-track (46) and the return sub-track (47) are disposed between and perpendicular to the sample feeding track (42) and the advancing track (43), an emergency sample may enter the emergency sub-track via the advancing track (43), and then enters the sample feeding track for sample suction. The track-based delivery system can be horizontally disposed in a biochemical analyzer, and can be butt-jointed with a vertical track in the biochemical analyzer, thereby greatly increasing the buffer amount of sample holders without increasing the length of the biochemical analyzer.

Abstract: The present disclosure discloses a microfluidic chip for separating and detecting whole blood sample. It has a chip body and a sample channel on the said chip body. The sample channel has a sample-feeding area, a sinking area, a mixing area, a testing area and a waste liquor area connected in sequence. The microfluidic chip integrates separating and testing of plasma in whole blood into a whole, free from a complicated whole blood sample pre-treatment process, and rapidly detect single or multiple proteins or other indicators in whole blood in a quantified manner.

Abstract: A sample feeding propulsion mechanism for biochemical analyzer, comprising a push plate (1), a horizontal guide rail (2), a motor (3), and it further comprises a propulsive guide plate (4), a thrust roller (5) and a rotating wheel (6), the propulsive guide plate (4) is in sliding fit on the horizontal guide rail (2), the push plate (1) is joined to the propulsive guide plate (4); the rotating wheel 6 is mounted on an output shaft of the motor; the thrust roller is eccentrically mounted on one side of the rotating wheel, the propulsive guide plate is provided with a guide groove forming an included angle with the horizontal guide rail in their length directions; and the thrust roller is in rolling fit in the guide groove. The sample feeding propulsion mechanism for biochemical analyzer in this disclosure is simple in structure, small in size and occupied mounting space.

Abstract: A biochemical analyzer delivery system, comprising a sample feeding track (42), an advancing track (43), a recovery track (44), at least one to-be-tested sub-track (45), at least one emergency sub-track (46) and at least one return sub-track (47); the sample feeding track (42), the advancing track (43) and the recovery track (44) are parallel to each other; the to-be-tested sub-track (45), the emergency sub-track (46) and the return sub-track (47) are disposed between and perpendicular to the sample feeding track (42) and the advancing track (43), an emergency sample may enter the emergency sub-track via the advancing track (43), and then enters the sample feeding track for sample suction. The track-based delivery system can be horizontally disposed in a biochemical analyzer, and can be butt-jointed with a vertical track in the biochemical analyzer, thereby greatly increasing the buffer amount of sample holders without increasing the length of the biochemical analyzer.

Abstract: Fructosyl amino acid oxidase is provided, which has an amino acid sequence as shown in SEQID. No. 1 or fructosyl amino acid oxidase having a homology of more than 80% with this amino acid sequence, on a corresponding site of an amino acid selected from following (a) to (f), having one or more amino acid residues conducting a substitution, obtained fructosyl amino acid oxidase having a higher thermostability: (a) 59-site glutamic acid, (b) 98-site glutamic acid, (c) 225-site glycine, (d) 277-site lysine, (e) 285-site glutamic acid, and (f) 355-site aspartic acid. The method for preparing the above oxidase and the test kit containing the enzyme for determining glycated albumin are also provided.

Abstract: Fructosyl amino acid oxidase is provided, which has an amino acid sequence as shown in SEQID. No. 1 or fructosyl amino acid oxidase having a homology of more than 80% with this amino acid sequence, on a corresponding site of an amino acid selected from following (a) to (f), having one or more amino acid residues conducting a substitution, obtained fructosyl amino acid oxidase having a higher thermostability: (a) 59-site glutamic acid, (b) 98-site glutamic acid, (c) 225-site glycine, (d) 277-site lysine, (e) 285-site glutamic acid, and (f) 355-site aspartic acid. The method for preparing the above oxidase and the test kit containing the enzyme for determining glycated albumin are also provided.