Preliminary Study Of ETV-MPT-AES Rapid Analysis System For Multiple Trace Elements In Blood

Concentration of trace elements in human blood can reflect the health condition of human body.With the development of economy,people are paying more attention to the life quality and body health.To ease the pressure of increasing blood test demand,it is a meaningful research to develop a novel low-cost instrument for quick determination of trace elements in human body.ETV-MPT-AES method is an ideal method to develop a low-cost instrument for quick determination of trace elements in human body due to its low building and working cost,simple preprocess for blood detection as well as fast detection speed.So,we build an ETV-MPT-AES system for fast blood trace elements measurement.ETV-MPT-AES system in this study is based on the existed PN-MPT-AES system in labs.ETV,as a key part in this system,was designed systematically by simulation methods such as smoke expriments after adequate literature research.After working condition optimization,the detection limit of the system for copper wa shown to be at 1 μg/l level,which is much lower than the normal copper concentration in blood as several hundreds μg/l level.ETV is an uncontinuouse sample introduction method,its precision,which is a precondition for accuracy,is not as good as PN if the working conditions are not strictly set.In this study,the mature chromatography algorithm is studied,which is similar to ETV as an uncontinuouse sample introduction method.In the light of the characteristcs of ETV-MPT-AES datas,choose suitable quantitiative analysis method in chromatography algorithm.And finally,a split-new peak volume method is proposed for quantitiative analysis of ETV-MPT-AES in this study,proved to significantly improving the precision of the result while remaining good linearity.ETV-MPT-AES system built in this study is used to determine the Cu,Pb,Zn in blood samples.The total detection time cost no longer than 5 minutes,proving its probability in fast blood testing.On the other hand,the peak volume method has been shown to work quite well for quantitative analysis of blood samples.