buffer solutionThe metrological characteristics of buffer solutions prepared from high-purity substances were investigated. The possibility of using them in metrological studies conducted on the State Primary...doi:10.1007/s11018-018-1392-7V. I. Dobrovolskii...
The solution chemistry of I is explained, and a scheme showing its two protonated carbonium ions and its triphenylcarbinol derivative is presented. The distribution coefficients of I in n-octanol or chloroform and pH 7.4 phosphate buffer systems were 0.013 and 0.12, respectively. The approximate ...
W Wang,N Zhai,A Wang 摘要: A series of novel superabsorbent nanocomposites were prepared by the solution radical polymerization of natural guar gum (GG), partially neutralized acrylic acid [sodium acrylate (NaA)], and cation-exchanged vermiculite (Mn+-VMT) with ammonium persulfate as the ...
The CH4 production was calculated as L/kg DM of substrate minus blanks and 39.54 kJ/L. The undigested sample was filtered through a glass filter crucible, washed by a pepsin solution, dried at 100 °C in a forced-air oven for 24 h, and weighed for IVDMD calculation. To measure IVOMD...
The chitosan-containing polysaccharide is prepared by a method comprising the steps of heat-treating a fungus in a concentrated aqueous caustic alkali solution; subjecting the resulting solution to a solid-liquid separation treatment; di... H Okazaki,T Hamaya,S Kurihara - EP 被引量: 19发表: 0...
Fig.1 Effects of extract solution amount on PPO activity from romaine lettuce 120 100 80 60 40 20 0 酶 活 性 ( U g F W ) 0 1 0 5 0 8 底物浓度 (mol L) 0 6 0 7 0 2 0 4 0 3 图2 底物浓度对生 PPO 活性 影响 Fig.2 Effects of substrate concentration on PPO activity from...
The method of injection of an ethanolic solution of probe was used. The analysis of the spectra recorded after injection into a free-membrane buffer allowed to discriminate two dispersion states (micellar or aggregated) of the probes. The micellar state was identified as the one suitable for the...
In deep-sea mining, the coupling dynamic response between the mining vessel and the lifting pipe is a significant problem, which directly affects the structural design of the lifting system and the safety of field operation. The characteristics of couple
The damping characteristics of Ti50Ni49.5Fe0.5 and Ti50Ni40Cu10ternary shape memory alloys (SMAs) have been systematically studied by resonant-bar testing and internal friction (IF) measurement. The... 关键词: Martensite Material Transaction Martensitic Transformation Internal Friction Shape Memory Allo...
X-ray diffraction studies are made of samples of arginine-rich histones, lysine-rich histones, and total histones. Samples are first studied when dry, next after the addition of a buffer solution, and finally after a subsequent addition ... RK Mishra,A. De Vries,GH Brown,... - 《Molecula...