The obtained potential ecological risk appraising adopting Muller land accumulation index method and Hakanson potential ecological risk index method, showed that Cd in the coal mine area possessed very high potential ecological risk and As possessed general risk;
Conclusion The positive rates of all the 5 kits were over 90% and had a very high conformity in detecting anti-HEV IgG in clinical patient with hepatitis E, positive rates of 3.48% to 31.74% were found in detecting the normal persons' sera.
It contains very high Sr (1010- 1660 μ g/g) and Ba (1280- 2010 μ g/g) contents, with fractionated REE ((La/Yb)N=37.4- 67.3), and relatively depleted Nb, Ta and Ti contents, and does not show significant negative anomalies of Eu and Sr, exhibiting a strong affinity to high Ba-Sr series.
The vaccinated group with the BJ836 vaccine acquired complete protection against the challenges by the high dose(1∶10)or strain CJ801 and the low dose(1∶100)of strain 1084A,but had poor protection against the challenges by the very high does(1∶1)of strain CJ801 and the high dose(1∶10)of strain 1084A.
The vaccinated group with the bivalent vaccine acquired complete protection against the challenges by the very high dose(1∶1)of strain CJ801 and the high dose(1∶10)of strain 1084A,but had poor protection against the challenges by the very high dose(1∶1)of strain 1084A.
When the biotype collected from Shaoxing suburb in 2003 as the susceptible biotype,the biotypes collected from Shaoxing Taoyan(2003)and Wenzhou Tangxia(2003)were very high resistant to quinclorac,the EC50 were 234.8 and 227.4mg/L respectively,and the resistance ratio were 718.48 and 695.84 respectively.
The maximum absorbance wavelength of the association complex is at 535 nm and its molar absorptivity is 1. 15X106 L mol-1 cm-1, The method has very high sensitivity and can be applied to spectrophotometic determination of trace amounts of mercury in water.