要鉴定的植株样品经不同实验室分析,所得结果往往不一致。此现象不仅存在于采用不同的分析方法,甚至在采用相同的分析方法也同样会出现。对于微量元素而言,上述现象尤为突出。 确定植物标准参比样是检测各实验室分析结果的准确度,以及校准仪器、检验分析方法的一种有效途径。诸如美国国家标准局颁布的果树叶标准样SRM1571,番茄叶标准样SRM1573,松针叶标准 Plant samples to be identified by different laboratories, the results are often inconsistent. This phenomenon exists not only in the use of different analytical methods, but also in the same analytical methods. For trace elements, the above phenomenon is particularly prominent. Determine the plant standard reference sample is to detect the accuracy of the laboratory analysis results, as well as calibration instruments, test analysis method is an effective way. Such as the United States National Bureau of Standards issued fruit tree standard SRM1571, tomato leaf standard SRM1573, pine needles standard