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Results: The linear ranges for inorganic arsenic, monomethylarsonic acid and dimethylarsonic acid were all from 5.0 to 100.0 μg/L The detection limits of As(superscript 3+), As(superscript 5+), monomethylarsonic acid and dimethylarsonic acid were 0.05 mg/kg. The recoveries of the method were 78%-110%(n=6), and the relative standard deviations were

结果:本方法的三价砷、五价砷、一甲基砷和二甲基砷在5.0~100.0 μg/L范围内有良好的线性,方法的测定低限均为0.05 mg/kg;实验表明方法对不同海产品的回收率在78%~110%之间,相对标准偏差在3.0%~12.2%之间。

The soluble tetra-alkyl phthalocyanine compounds have the following general structure, wherein Rn represents straight-chain or branching chain alkane, n represents the number of straight-chain or branching chain alkane, M represents center ligand of bivalence or more, L represents axial ligand, X represents the number of L.

该可溶性四烷基酞菁化合物符合如下结构通式:结构通式中,Rn代表直链或支化链的烷烃,n代表直链或支化链的烷烃的数目,M代表二价或二价以上的中心配体,L代表轴向配体,X代表L的数目。

In conclusion, not only the methods and relative situation of extracting Cr from chrome slag but also the feasibility of producing yellow chrome by using chrome slag"s leachate were studied in this dissertation. All these study will provide necessary theoretical basis for the industrialization of producing yellow chrome from the chrome slag"s leachate.

本论文研究的创新之处在于:本研究以从铬渣中提取六价铬作为立足点,消除了解毒后的铬遇氧化条件毒性恢复的可能,利用回收的六价铬制取铬黄颜料的研究初步证明,该法不仅切实可行,而且成本低廉、效益好。

The results show that the Coulomb\'s force and angle torsion interactions were important to the formation and stabilization of montmorillonite structure.

计算结果表明,在蒙脱石的稳定构型中,起主要作用的是非价键作用的库仑作用能和价键作用的角弯曲作用能。

Furthermore, though Nt and Ne are the two different covalent factors belonging to different wave functions, their difference in numerical values should be small, because Racah electrostatic parameter A plays a great role in the calculation of energy levels when the covalence effect is considered.

Nt和Ne虽然是属于两个不同轨道的不同的共价因子,但在数值上不能有大的差别,因为考虑进共价效应后,拉卡静电参量A对能级计算有极大的影响。

Fe〓 is the source of electron in the process of reductive dechlorination and RCl is the acceptor of electron.

在零价铁对氯代烃的还原性脱氯过程中,零价铁是主要的还原剂,起到电子源的作用,氯代烃起到氧化剂的作用,是电子受体。

The results showed that different species of aloe and aloe different parts of ferric ion, divalent magnesium ion content has some differences.

结果表明,不同品种的芦荟及芦荟的不同部分三价铁离子、二价镁离子的含量有一定的差异。

The effect of ferrous iron on the leaching rate of gallium and phosphorus was not significant.

镓和二价铁离子的沉淀率随磷酸根离子浓度的增加而增加,当磷酸根离子与金属离子摩尔比大于1:1后,磷酸根离子浓度对沉淀率的影响不再变化;温度对镓离子沉淀过程的影响较小,对二价铁离子的沉淀过程影响较显著。

Like South IOC Park, the leu was 2,700 yuan in 2001 / sq m, is now marketing fold 4,600 yuan / m2; Xinghewan was over 4,000 yuan in 2001 dropped / m2, sales kilogram is now 5,400 yuan / m2;祈福 new price was 3,500 yuan,?

像南国奥园,2001年的开盘价是2700元/平方米,现在的销售均价是4600元/平方米;星河湾2001年的开盘价是4000多元/平方米,现在的销售均价是5400元/平方米;祈福新?

First of all, the valuation errors in TXO of the BS-IV model are the smallest among all volatility models. In the whole, the BS-IVmodel underprices the market value, BS-HV, BS-EV(EGARCH(1,1))and Ad hoc BS model overprice the market value respectively. Next, there exist the linear relationships between the valuation errors and moneyness in TXO mostly. At last, in view of hedging errors, the other thing being equal, the shorter is the maturity, the smaller is the hedging error.

本文的实证发现,在评价误差方面,整体而言,隐含波动性模型对买权及卖权的评价误差最小,隐含波动性模型之理论价格低估了市场价格;而历史波动性模型、EGARCH(1,1)模型及平滑后的历史波动性模型之理论价格则大多高估了市场价格;接著,在评价误差与金融特性关系方面,各波动性模型之评价误差与价内价外程度、股价指数报酬率、股价指数波动性、距到期日及无风险利率等因素,大多具有显著的线性关系。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

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三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。