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一、波长最大允许误差与重复性检定需要注意的事项波长最大允许误差检定即检定波长准确度,是指扫描标准样品或标准滤光片时,仪器测得的光谱峰的波长值与该峰的标准值的符合程度。波长准确度误差随仪器不同一般在(±0.2～±1)nm之间。JJG178-2007《紫外、可见、近红外分光光度计》检定规程提供了9种标准物质供选择,实际检查波长准确度常用的方法是用仪器光源氘灯的发射谱线、用汞灯的发射谱线、用镨钕滤光片或钬滤光片的吸收峰检查。
First, the wavelength of the maximum allowable error and repeatability of the test need to be aware of The maximum allowable wavelength of error of the test is the determination of wavelength accuracy, refers to the standard sample or standard filter scan, the instrument measured the spectral peak wavelength value and the peak The standard value of the degree of compliance. Wavelength accuracy error with the instrument generally different (± 0.2 ~ ± 1) nm. JJG178-2007 “UV, Visible, Near Infrared Spectrophotometer” test protocol provides nine kinds of standard substances to choose from, the actual method of checking the accuracy of the wavelength is the instrument light source deuterium emission line, with mercury lamp emission spectrum Line, with praseodymium neodymium filter or holmium filter absorption peak check.