利用校准周期图建立日立7600生化仪检测系统校准周期

目的利用校准周期图建立日立7600生化仪检测系统校准周期。方法利用校准周期图,更换试剂后对日立7600生化仪检测系统进行校准,每2 h检测一批质控血清,每批3种水平,每个水平做4次重复检测,以累积CV小于CLIA′88允许误差的1/6作为评价标准。结果肌酐从校准后8 h即有低水平的质控血清累积CV>2.59,其校准周期最短,ISE离子类校准周期每12 h需要校准一次,酶类校准周期可达30 d以上。结论在确立检测系统的校准周期时,一定要选用接近于检测下限的质控血清,选用高浓度的质控血清可能会造成确立的校准周期过长。

The establishment of the calibration cycle of 7600 biochemical analyzer by detection system calibration cycle diagram

Objective To establish the calibration cycle of 7600 biochemical analyzer by detection system calibration cycle diagram.Methods The 7600 biochemical analyzer was calibrated after the replacement of biochemical reagent using the calibration cycle diagram.The quality control serums were tested every two hours,and each test consisted of three levels with each level being tested 4 times repeatedly.A cumulative CV less than 1 / 6 of the CLIA′88 tolerance was set as the evaluation criteria.Results A low level of quality control serum had accumulated 8 hours after the calibration of creatinine with CV2.59.The calibration cycle was the shortest.ISE ion type of calibration needs to be calibrated every 12 hours,while the calibration cycle of enzymes could be as long as 30 days.Conclusion The control serum close to the lower detection limit should be chosen in the establishment of the calibration cycle.Control serums with high concentration will make the establishment of the calibration cycle too long.