摘要
介绍了V(正己烷)∶V(甲苯)=1∶1溶液中8种有机氯农药混合校准标准样品的研制方法。校准标准样品采用称量法制备,采用气相色谱/电子捕获检测器内标法进行均匀性检验和稳定性监测。评估研制过程中产生的不确定度,合成为校准标准样品的不确定度。研究结果表明,V(正己烷)∶V(甲苯)=1∶1溶液中8种有机氯农药混合校准标准样品均匀性和稳定性良好,量值准确,可用于环境监测和科学研究工作。
The development technique of the calibration certi-fied reference material（CRM） of 8 organic chlorine pesticides （OCPs） in n-hexane and toluene （ V： V = 1 ： 1 ） was presen- ted. The CRM was prepared with gravimetric method. The homogeneity testing and stability monitoring of the CRM were done hy GC/ECD. The uncertainty was analyzed and com-bined in the CRM study. The results of the research show that the CRM is homogenous,stable and accurate. It may be used in the environmental monitoring and other studies.
出处
《化学试剂》
CAS
CSCD
北大核心
2013年第11期995-998,共4页
Chemical Reagents
关键词
标准样品
稳定性
均匀性
有机氯农药
certified reference material
stability
homogenei-ty
organic chlorine pesticides
