CAJ | 학술논문

采用原子吸收光谱仪测定锰质控样的浓度，收集20组数据，通过EXCEL函数功能计算均值（中心限1、标准偏差、上下控制限、上下警戒限、上下辅助限；用EXCEL图表功能绘制控制图，以测定日期为横坐标，锰浓度为纵坐标，中心线、控制线、警戒线、辅助线和测定数据线共同组成了完整的质量控制图。结果表明，锰浓度控制图的控制限为1．6291．786mg／L；警戒限为1．655～1．760mg／L。当测定值未超出警戒限时，说明测量系统质量良好；当测定值超出警戒限但未超出控制限时，说明测量系统有失控的倾向；当测定值超过控制限时，说明测量系统失控，需要查明原因，采取纠正措施，确保测量系统持续受控。通过质量控制图可以考察测量系统的质量状况和变化趋势，判断检测过程是否受控．确定检测结果是否符合要求．它是实验室质量管理中一种有效的控制手段。
채용원자흡수광보의측정맹질공양적농도，수집20조수거，통과EXCEL함수공능계산균치（중심한1、표준편차、상하공제한、상하경계한、상하보조한；용EXCEL도표공능회제공제도，이측정일기위횡좌표，맹농도위종좌표，중심선、공제선、경계선、보조선화측정수거선공동조성료완정적질량공제도。결과표명，맹농도공제도적공제한위1．6291．786mg／L；경계한위1．655～1．760mg／L。당측정치미초출경계한시，설명측량계통질량량호；당측정치초출경계한단미초출공제한시，설명측량계통유실공적경향；당측정치초과공제한시，설명측량계통실공，수요사명원인，채취규정조시，학보측량계통지속수공。통과질량공제도가이고찰측량계통적질량상황화변화추세，판단검측과정시부수공．학정검측결과시부부합요구．타시실험실질량관리중일충유효적공제수단。
Mn content was detected by FAAS, 20 groups of detection data were collected, and general average （the central limit）, standard deviation, upper and low control limit, upper and low warning limit, and upper and low auxiliary limit were calculated by EXCEL function, then the detection date used as x-coordinate, Mn content used as y-coordinate, labeling the detected data, CL, UCL, LCL, UWL, LWL, UAL and LAL in the coordinate, seven parallel line finalty made integrated quality control chart. The control limit of Mn content was 1.629 - 1.786 mg/L and the warning limit was 1.655 - 1.760 mg/L. When the detected data was within the warning limit, the detecting system was well controlled. When the detected data exceeded the warning limit but was within the control limit, the detecting system was still under control but the deviation was concemed. When the detected data exceeded the control limit, the detecting system lost control and the corrective measures should be adopted to en- sure normal operation of the detecting system. The quality control chart was one of the useful QC approaches to settle the problems such as monitoring the status and the change trend of the detecting system, judging whether the detecting system was under control or not, and determining whether the detecting data were in accord with the requirements or not.