low abundance
1.Results The method for removing serum high-abundance proteins was established, about 95% albumin and IgG in serum could be removed. The protein dots of 2-DE map were more clear and some low-abundance proteins were visualization after filtering.
3.The two low abundance events could be induced by the combination of the strong siliceous dissolution indicated by high radiolarian fragmentation rate,the dilution of high carbonate and volcanic ash contents and the lower surface productivity,which shows the complicated process of deposition in siliceous organisms.
4.In particular,it is the most sensitive and reproducible method for the detection of low-abundance mRNA,often obtained from limited tissue samples. In fact,this technique is sensitive enough to enable quantitation of RNA from a single cell. There are four kinds of quantitative RT-PCR: relative quantitative RTPCR,competitive quantitative RT-PCR,comparative quantitative RT-PCR and real time quantitative RT-PCR.
5.The result shows that the determination datun is in the range of error, the result obtained from RPQ-IC is 0.14% higher than that from Faraday cup, the inner precision and outer precision from the determination of isotopic ratios of low abundance uranium by RPQ-IC collector system are higher than from Faraday cup.
6.The surface primary productivity is low due to the influence of sea ice and low sea surface temperture, which results in both low benthic foraminiferal abundance and diversity, radiolarian disappearing and only a few ostracoda remaining, but diatoms and sponge spicules are abundant in the surface sediments of the Chukchi Sea shelf.
9.This paper appraises the source rocks of Linnan low-lying by studying the abundance of TOC, EOM, HC, and so on.

