【摘 要】
：
The effects of matrix silicate and experimental conditions on the determination of iron in flame atomic absorption spectrometry (FAAS) were investigated. It was
【机 构】
：
State Key Laboratory of Chemical Resource Engineering
论文部分内容阅读
The effects of matrix silicate and experimental conditions on the determination of iron in flame atomic absorption spectrometry (FAAS) were investigated. It was found that boric acid as a matrix modifier obviously eliminated silicate interference. Under the optimum operating conditions, the determination results of iron in layered crystal sodium disilicate and sodium silicate samples by FAAS were satisfactory. The linear range of calibration curve is 0-10.5 μg.mL-1, the relative standard deviation of method is 1.2%-2.2%, the recovery of added iron is 96.0%-101%, the of iron of the standard curve method, standard addition calibration and colorimetry method was the same, but the first has the merits of rapid sample preparation, reduced contamination risks and fast analysis.
其他文献
A new five-coordinate mixed-ligand compound, di-n-butyl(3,4-difluorobenzoxy)-(3,4-difluorobenzohydroxamato)tin(Ⅳ) 1 was synthesized and characterized by IR, 1H
Amino acid methyl ester phosphates were synthesized and determined by using positive-ion mode electrospray ionization mass spectrometry(ESIMS) in combination wi
A novel strategy has been developed for construction of nanoparticle chains between nanoelectrodes with bifunctional molecules by taking advantage of linear agg
A home-made static NMR cell with pressure up to 10 MPa was employed to observe the formation and dissociation processes of methane hydrate by in situ 1H and 13C
In this paper, we have successfully extended the Jacobian elliptic function expansion approach to nonlinear differential-difference equations. The Hybrid lattic
The two title compounds,2-oxo-2-p-tolyl-1-(1,2,4-triazol-1-yl)ethyl phenylcarbamodithioate(compound 3a) and2-oxo-2-p-biphenyl-1-(1,2,4-triazol-1-yl)ethyl phenyl
CaSiO3:Eu3+0.08Bi3+0.002 with a monoclinic perovskite structure was synthesized by using sol-gel method, and its luminescence characteristics were investigated.
The coordinated polymer [Ni(pda)(H2O)3]n 1 (pda = pyridine-2,3-dicarboxylate) with one-dimensional chain structure has been obtained by hydrothermal method. Its
A novel method for controlled synthesis of crystalline molybdenum dioxides nanowhiskers (whisker-MoO2) by using moderate reductive and precursor ion under hydro
在考虑自由体积和局部临界扩散势能的基础上,提出一种新的计算自扩散系数模型,并给出新模型中各个因子物理含义.同时还提出一种计算局部临界扩散势能的新方法,并应用于新模型