The mass spectrometric de-tection system and AP-ESI positive ion model were adopted with the atmosperic pressure at0.054Pa(400psi),the protecting gas at N 2 10L/min,capillary voltage at4000V,the ion source temperature at100℃and the fragment voltage at220V,the ions collected by SIM were felodipine m/z411(M+Na),Nimodipine m/z441(M+Na).
The characteristic fragment ions of matrine were m/z 148 and 150,and those of oxymatrine were m/z 248([M+H-17]~+), m/z 247([M+H-18]~+) and m/z 148,m/z 150.The extracts of standard medicinal materials of Sophoraflavescens Ait.
Results:Compared with DNR group,the shedded cardiomyocytes and the cell debris of DNR+QUE group was decreased,the content of LDH and MDA lowered(P<0.05)and the activity of SOD increased(P<0.05)with a dose-effect correlation.
A method QFOAC that quantifies the fragments of placement was proposed in this paper, QFOAC sums the fragment contribution of every occupied reconfigurable computing unit to get the fragment value of the chip.
Compared with the traditional matching pattern technology, the protocol analysis-based IDS has the advantages such as: high speed of detection, low system cost, low error rate, detection of chip attack and so on.
Concept and Classification of Coarse Woody Debris in Forest Ecosystems
Coarse woody debris (CWD) is generally considered as dead woody materials in various stages of decomposition, including sound and rotting logs, snags, and large branches.
Experimental data are analyzed that concern the effect of zoogenic debris on the properties of soddy deep podzolic soils and raw-humus brown soils characteristic of southern taiga forests in the Yenisei region of Siberia.
Zoogenic plant debris falling on the ground surface during tree stand defoliation is a short-acting but powerful stimulant of biological activity in the litter; hence, it has a considerable effect on soil properties.
The results of experimental studies on the contribution of zoogenic debris to transformation of soil properties in the southern taiga subzone of Central Siberia are analyzed.