The paper chromatography-mottle elution chronometry is established which is a simple and convenient and accurate method of quantitatively determining L-leucine.
Conclusions: Ponceau 2R-brilliant green double staining technique is a quick,simple and reliable myelin stain method in demonstrating the fasciculi in the central nervous system.
A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.