发射光谱仪检定/校准的探讨  

Discussion of verification/calibration of emission spectrometer

作　　者：毕经亮[1] 畅小军[1] 刘颂[1] 陈武[1] 周巍松[1] 

机构地区：[1]钢铁研究总院,北京100081

出　　处：《冶金分析》2014年第5期76-80,共5页Metallurgical Analysis

摘　　要：为了使从事发射光谱仪生产、检定/校准、使用的相关人员理解JJG768-2005《发射光谱仪检定规程》、合理的检定/校准发射光谱仪,对发射光谱仪检定/校准过程中出现的问题,包括波长校正、检出限、检定元素的选择、不确定度的计算、示值误差的评定、标准物质的选用及检定/校准的意义进行了讨论。根据仪器的特点和实际测试的要求,提出了检定/校准的意义在于监督和服务的职能、仪器波长校正的方式不同检定校准的结果也不同、仪器检定/校准的检出限更多的是定性的概念、示值准确的重要性以及发射光谱仪测试结果的示值误差必须进行评定等见解,给出了检定/校准发射光谱仪时检定元素和用于校准的标准物质的选择原则和方法。In order to enable related staffs engaged in emission spectrometer, verification/calibration to understand JJG768-2005 Emission Spectrometer Verification Regulation and to appropriately verify/ calibrate emission spectrometers, the problems during the verification/calibration process of emission spectrometer, including wavelength calibration, detection limit, selection of test elements, calculation of uncertainty, assessment of indication deviation, selection of reference materials and meaning of verification/calibration, were discussed. According to the characteristics of instrument and requirements of practical test, it was proposed that, the significance of verification/calibration lies in supervision and service; the verification/calibration results depend on the wavelength correction manner of instrument; the detection limit of instrument verification/calibration is more of a qualitative concept; the significance of indication accuracy as well as indication deviation of emission spectrometer must be assessed. The selection principles and methods were provided for element used in the verification and reference materials used in the calibration during verification/calibration of emission spectrometer.

关 键 词：发射光谱仪 检定 校准 波长 检出限 元素 示值误差 

分 类 号：O657.31[理学—分析化学]