本文研究了一种利用 Clark 氧电极监测在戊二醛与乳制品中蛋白质或氨基酸的氨基反应中所消耗的氧,从中快速制定蛋白质含量的新方法。其方法准确,操作简便,样品不需前处理,省时价廉。方法的线性范围、相关系数及重现性变异系数分别为:2.0...本文研究了一种利用 Clark 氧电极监测在戊二醛与乳制品中蛋白质或氨基酸的氨基反应中所消耗的氧,从中快速制定蛋白质含量的新方法。其方法准确,操作简便,样品不需前处理,省时价廉。方法的线性范围、相关系数及重现性变异系数分别为:2.0×10<sup>-3</sup>～5.5×10<sup>-2</sup>mol/L,r=0.997和 cv%=7.18。展开更多
Influence of applied potentials and loading waveform on the fatigue crack growth for steel A537 in 3.5% NaCl solution,and corresponding straining electrode behaviour have been studied.Under the applied potentials over...Influence of applied potentials and loading waveform on the fatigue crack growth for steel A537 in 3.5% NaCl solution,and corresponding straining electrode behaviour have been studied.Under the applied potentials over or below -800mV(SCE),the anodic dissolution or the hydrogen embrittlement is predominatant,respectively.For applied anodic potential,the acceleration effect of continuous loading pattern on the CF crack growth mainly appeared at the range of low ΔK values,while for cathodic potential,it appeared at the high ΔK values.The continuous straining causes a decrease of natural potential and an increase of anodic dissolution current.展开更多
文摘本文研究了一种利用 Clark 氧电极监测在戊二醛与乳制品中蛋白质或氨基酸的氨基反应中所消耗的氧,从中快速制定蛋白质含量的新方法。其方法准确,操作简便,样品不需前处理,省时价廉。方法的线性范围、相关系数及重现性变异系数分别为:2.0×10<sup>-3</sup>～5.5×10<sup>-2</sup>mol/L,r=0.997和 cv%=7.18。
文摘Influence of applied potentials and loading waveform on the fatigue crack growth for steel A537 in 3.5% NaCl solution,and corresponding straining electrode behaviour have been studied.Under the applied potentials over or below -800mV(SCE),the anodic dissolution or the hydrogen embrittlement is predominatant,respectively.For applied anodic potential,the acceleration effect of continuous loading pattern on the CF crack growth mainly appeared at the range of low ΔK values,while for cathodic potential,it appeared at the high ΔK values.The continuous straining causes a decrease of natural potential and an increase of anodic dissolution current.
