(e.g. glycosylated proteins). The level of mass accuracy one obtains during the measurement will depend on the capabilities of the mass analyser used. Quadrupole and TOF instruments yield lower mass accuracies than sector or Fourier transform ion cyclotron resonance (FTICR) instruments. High mass...
Molecular weight control law null of poly 优质文献 相似文献One-Step Synthesis of Hyperbranched Polyesters. Molecular Weight Control and Chain End Functionalization A new procedure is described for the preparation of chloride ion free 3,5-bis(trimethylsiloxy)benzoyl chloride, which allows the reproducibl...
better removal effect of HPAM among the non-ion, amphoteric ion and hydrophobical cation polymers, especially the DMDAAC cationic polymer has an optimal result. The removal capacity to HPAM can be further improved by using appropriate molecular weight and cationic capacity and gas floatation ...
Antioxidant properties of anthocyanins and tannins: a mechanistic investigation with catechin and the 3′,4′,7-trihydroxyflavylium ion Plant polyphenols act as antioxidants mainly by trapping reactive oxygen species and by regenerating endogenous membrane-bound 伪-tocopherol (vitamin E). I... O D...
NBD chloride and NBD fluoride are extensively used as derivatization reagents for chromatographic analysis of amino acids and other low molecular weight amines. The absorption and fluorescence emission spectra, quantum yields and extinction ...
The other physical method, ion-exchange resin separation, takes advantage of the difference in protein chargeability (Shi et al., 2019b). Cation and anion resins can withhold negatively charged and positively charged proteins, respectively. This method will not destroy the protein and can ...
Storage or transportation temperature is very important for preserving the quality of fruit. However, low temperature in sensitive fruit such as peach can induce loss of quality. Fruit exposed to a specific range of temperatures and for a longer period c
of the prepared materials. The adsorption of Pb(II) onto the synthesized nanocomposites was studied in a batch system. After study the effect of solution pH, adsorbent amount, contact time, and initial concentration of metal ion on the adsorption process, kinetic studies were also conducted. For...
above[17]. In addition, reaction (Mannich reaction) of tertiary amines (tetrahydroisoquinolines) withvarious nucleophiles has been performed by using O2as the oxidant[29]. The functionalization of benzylic C-H adjacent to N atoms occurred by the formation of iminium ion as intermediate (Fig. ...
select article Effect of CdSe/ZnS quantum dots doping on the ion transport behavior in nematic liquid crystal Research articleAbstract only Effect of CdSe/ZnS quantum dots doping on the ion transport behavior in nematic liquid crystal Aysha Rani, Susanta Chakraborty, Aloka Sinha Article 117327 Articl...