concentration level
2.For the concentration level of 0.2～0.6μg/gSe, the relative standard deviation is 3.7%～5.5%(n=9),with recovery of 91%～103%.
3.In specified range, the accuracy should be evaluated using at least 9 testing results of the sample, 3 testing solutions of each concentration level (3 different concentration levels in all) are prepared and measured.
4.Abstract: The instruments for measuring sulphuric acid concentration and liquid level in drying and absorption section of sulphuric acid plant,as well as comprehensive control of sulphuric acid concentration and liquid level in different acid-mixing processes are described.
5.RDP and ruminal NH3-N concentration showed plus linear correlation, expression was y(NH3-N concentration)=2.1471x(RDP level).
7.The hepatic ATP concentration was negatively correlated with the endotoxin level,and MDA concentration was positively correlated with endotoxin level.
8.The experimental results showed that the best mechanical strength and fermentation performance could be achieved as PVA concentration as 8 %,NaAlg concentration as 1 %,the addition level of SiO2 as 2.0 g,and H3BO3-CaCl2 concentration as 3.5 %～2 %.
9.Comparing two groups after the treatment, concentration of serum APN and INs level had the difference.
10.The assay with 5levels of the Standard requires only one level of the Unknown at a concentration assumed equal to the median level of the Standard.
